Jan Jakubik

Born 1923 in Dudince, district Zvolen.
University studies:
Comenius University, Bratislava, School of Natural Sciences 1944-1949,
RNDr. 1951, Docent 1956, CSc. (PhD) 1958, Professor 1963, DrSc. 1965, Academician 1977.
Positions held:
1948-1952 Slovak Technical University in Bratislava;
1952-1985 Technical University in Kosice;
1977 - Math. Inst. Slovak Acad. Sci., Extension in Kosice (1977-1985 part time), Principal Research Fellow, Head of the Extension in Kosice.
Field of Interest: Algebra (Ordered Algebraic Structures).

List of Publications:

• Jakubik, J., Jednoznacnost rozkladu svazu na direktny sucin.
  Matematicko-fyzikalny zbornik SAV 1, 1951, 45-50.
• Jakubik, J., Kolibiar, M.,O nekotorych svojstvach par struktur.
  Czechoslovak Mathematical Journal 4 (1954), 1--27.
• Jakubik, J., O graficeskom izomorfizme struktur.
  Czechoslovak Mathematical Journal 4 (1954), 131--141.
• Jakubik, J., O rovnomernej konvergencii spojitych funkcii .
  Matematicko-fyzikalny casopis 4 (1954), 154--161.
• Jakubik, J., O grafovom izomorfizme semimodularnych svazov.
  Matematicko-fyzikalny casopis 4 (1954), 162--177.
• Jakubik, J., Sistema otnosenij kongruentnosti v strukturach.
  Czechoslovak Mathematical Journal 4 (1954), 248--273.
• Jakubik, J., O otnosenijach kongruentnosti na abstraktnych algebrach.
  Czechoslovak Mathematical Journal 4 (1954), 314--317.
• Jakubik, J., Relacie kongruentnosti a slaba projektivnost na svazoch.
  Casopis pro pestovani matematiky 80 (1955), 206--216.
• Jakubik, J., Poznamka o absolutne konvergentnych radoch.
  Matematicko-fyzikalny casopis 5 (1955), 133--136.
• Jakubik, J., Prjamyje razlozenija jedinicy v modularnych strukturach.
  Czechoslovak Mathematical Journal 5 (1955), 399--411.
• Jakubik, J., Prjamyje razlozenija vpolne distributivnych struktur.
  Czechoslovak Mathematical Journal 5 (1955), 488--491.
• Jakubik, J., O metrickych svazoch.
  Matematicko-fyzikalny casopis 5 (1955), 140--143.
• Jakubik, J., On the Jordan-Dedekind chain condition.
  Acta scientiarum mathematicarum 16 (1955), 266--269.
• Jakubik, J., O konvergencii v linearnych priestoroch.
  Matematicko-fyzikalny casopis 6 (1956), 57--67.
• Jakubik, J., O existencnych algebrach.
  Casopis pro pestovani matematiky 81 (1956), 43--45.
• Jakubik, J., Ob aksiomach teorii multistruktur.
  Czechoslovak Mathematical Journal 6 (1956), 1956, 426--430.
• Jakubik, J., Grafovy izomorfizmus multizvazov.
  Acta Fac. Rer. Nat. Univ. Comen. Mathematica 1 (1956), 255--264.
• Jakubik, J., Poznamka o Jordan-Dedekindovej podmienke v Booleovych algebrach.
  Casopis pro pestovani matematiky 82 (1957), 44--46.
• Jakubik, J., Centrum nekonecne distributivnych svazov.
  Matematicko-fyzikalny casopis 7 (1957), 116--120.
• Jakubik, J., Poznamka o endomorfizmoch na svazoch.
  Casopis pro pestovani matematiky 83 (1958), 226--229.
• Jakubik, J., O zamenitelnych kongruenciach na svazoch.
  Matematicko-fyzikalny casopis 8 (1958), 155--162.
• Jakubik, J., O retazcoch v Booleovych algebrach.
  Matematicko-fyzikalny casopis 8 (1958), 193--202.
• Jakubik, J., Konvexe Ketten in ellipse -Gruppen.
  Casopis pro pestovani matematiky 83 (1958), 53--63.
• Jakubik, J., Ob odnom klasse strukturno uporjadocennych grupp.
  Casopis pro pestovani matematiky 84 (1959), 150--161.
• Jakubik, J., O glavnych idealach v strukturno uporjadocennych gruppach.
  Czechoslovak Mathematical Journal 9 (1959), 528--543.
• Jakubik, J., Konvexne retazce v ciastocne usporiadanych grupach.
  Matematicko-fyzikalny casopis 9 (1959), 236--242.
• Jakubik, J., Ob odnom svojstve strukturno uporjadocennych grupp.
  Casopis pro pestovani matematiky 85 (1960), 51--59.
• Jakubik, J., Prjamyje razlozenija casticno uporjadocennych grupp.
  Czechoslovak Mathematical Journal 10 (1960), 231--243.
• Jakubik, J., K teorii casticno uporjadocennych grupp.
  Casopis pro pestovani matematiky 86 (1961), 318--330.
• Jakubik, J., Prjamyje razlozenija casticno uporjadocennych grupp. II.
  Czechoslovak Mathematical Journal 11 (1961), 490--515.
• Jakubik, J., Über eine Klasse von l-Gruppen.
  Acta Fac. Rer. Nat. Univ. Comen. Math. 6 (1961), 267--273.
• Jakubik, J.: The interval topology of an l-group.
  Matematicko-fyzikalny casopis 12 (1962), 209--211.
• Jakubik, J.: Über Teilbünde der l-Gruppen.
  Acta Scientiarum Mathematicarum 23 (1962), 249--254.
• Jakubik, J.: Über ein Problem von Paul Jaffard.
  Archiv der Mathematik 14 (1963), 16--21.
• Jakubik, J.: Predstavlenia i rassirenija l-grupp.
  Czechoslovak mathematical Journal 13 (1963), 267--283.
• Jakubik, J.: Die Jordan-Dedekindsche Bedingung im direkten Produkt von geordneten Mengen.
  Acta Scientiarum Mathematicarum 24 (1963), 20--23.
• Jakubik, J.: Interval topology of an l-group.
  Colloquium mathemaicum 11 (1963), 65--72.
• Jakubik, J.: Lexikograficeskije proizvedenija casticno uporjadocennych gruppoidov.
  Czechoslovak Mathematical Journal 14 (1964), 281--305.
• Jakubik, J.: Über halbgeordnete Gruppen mit verallgemeinerter Jordanscher Zerlegung.
  Revue Roumaine des Mathem. Pures et Appl. 9 (1964), 187--190.
• Jakubik, J.: Über Verbandsgruppen mit zwei Erzeugenden. >TT>
  Czechoslovak Mathematical Journal 14 (1964), 444--454.
• Jakubik, J., Kolibiar, M.: Über euklidische Verbände.
  Mathematische Annalen 155 (1964), 334--342.
• Jakubik, J.: Kompakt erzeughte Verbandsgruppen.
  Mathematische Nachrichten 30 (1965), 193--201.
• Jakubik, J.: Über die Intervalltopologie auf einer halbgeordneten Gruppe.
  Matematicko-fyzikalny casopis 15 (1965), 257--272.
• Jakubik, J., Die Dedekindschen Schnitte im direkten Produkt von halbgeordneten Gruppen.
  Matematicko-fyzikalny casopis 16 (1966), 329--336.
• Jakubik, J., Higher degrees of distributivity in lattices and lattice ordered groups.
  Czechoslovak Mathematical Journal 18 (1968), 356--376.
• Jakubik, J., Lattice ordered algebras generated by systems of ideals.
  Colloquium mathematicum 20 (1969), 31--44.
• Jakubik, J., Disjoint subsets of a partially ordered group.
  Archiv der Mathematik 20 (1969), 572--577.
• Jakubik, J., On some problems concerning disjointness in partially ordered
  groups.
  Acta Fac. Rer. Nat. Univ. Comen. Math. 22 (1969), 47--56.
• Jakubik, J., Partially ordered groups with two disjoint elements.
  Colloquium mathematicum 21 (1970), 39--44.
• Jakubik, J., The mixed product decompositions of partially ordered groups.
  Czechoslovak Mathematical Journal 20 (1970), 184--206.
• Jakubik, J., ellipse -subgroups of a lattice ordered group.
  Journal of the London Mathematical Society 2 (1970), 366--368.
• Jakubik, J., M-polars in lattices.
  Casopis pro pestovani matematiky 95 (1970), 252--255.
• Jakubik, J., On subgroups of a pseudo lattice ordered group.
  Pacific Journal of Mathematics 34 (1970), 109--115.
• Jakubik, J., Weak product decompositions of discrete lattices.
  Czechoslovak Mathematical Journal 21 (1971) 399--412.
• Jakubik, J., Drevenak, O., Lattice ordered groups with a basis.
  Mathematische Nachrichten 53 (1972), 217--236.
• Jakubik, J., Cardinal properties of lattice ordered groups.
  Fundamenta Mathematicae 74 (1972), 85--98.
• Jakubik, J., Distributivity in lattice ordered groups.
  Czechoslovak Mathematical Journal 22 (1972), 108--125.
• Jakubik, J., Cantor-Bernstein theorem for lattice ordered groups.
  Czechoslovak Mathematical Journal 22 (1972), 159--175.
• Jakubik, J., Weak product decompositions of partially ordered sets.
  Colloquium mathematicum 25 (1972), 177--190.
• Jakubik, J., Homogeneous lattice ordered groups.
  Czechoslovak Mathematical Journal 22 (1972), 325--337.
• Jakubik, J., Conditionally alpha-complete sublattices of a distributive lattice.
  Algebra universalis 2 (1972), 255--261.
• Jakubik, J., Lattice ordered groups of finite breadth.
  Colloquium mathematicum 27 (1973), 13--20.
• Jakubik, J., Center of a complete lattice.
  Czechoslovak Mathematical Journal 23 (1973), 125--138.
• Jakubik, J., On sigma-complete lattice ordered groups.
  Czechoslovak Mathematical Journal 23 (1973), 164--174.
• Jakubik, J., Lattice ordered groups with complete epimorphic images.
  Colloquium mathematicum 21 (1974), 21--28.
• Jakubik, J., Quasiorder on systems of directed sets.
  Matematicky casopis 24 (1974), 173--177.
• Jakubik, J., Normal prime filters of a lattice ordered group.
  Czechoslovak Mathematical Journal 24 (1974), 91--96.
• Jakubik, J., Splitting property of lattice ordered groups.
  Czechoslovak Mathematical Journal 24 (1974), 257--269.
• Jakubik, J., Conditionally orthogonally complete ellipse -groups.
  Mathematische Nachrichten 65 (1975), 153--162.
• Jakubik, J., Unoriented graphs of modular lattices.
  Czechoslovak Mathematical Journal 25 (1975), 240--246.
• Jakubik, J., Modular lattices of locally finite length.
  Acta scientiarum mathematicarum 37 (1975), 79--82.
• Jakubik, J., Center of a bounded lattice.
  Matematicky casopis 25 (1975), 339--343.
• Jakubik, J., Sublattices with saturated chains.
  Czechoslovak Mathematical Journal 25 (1975), 442--444.
• Jakubik, J., Cardinal sums of linearly ordered groups.
  Czechoslovak Mathematical Journal 25 (1975), 568--575.
• Jakubik, J., Product of torsion classes of lattice ordered groups.
  Czechoslovak Mathematical Journal 25 (1975), 576--585.
• Jakubik, J., Principal projection bands of a Riesz space.
  Colloquium mathematicum 36 (1976), 195--203.
• Jakubik, J., Lattice ordered groups with cyclic linearly ordered subgroups.
  Casopis pro pestovani matematiky 101 (1976), 88--90.
• Jakubik, J., Pairs of lattices with common congruence relations.
  Colloquia Mathematica Soc. J. Bolyai 14 (1976), 171--183.
• Jakubik, J., W-isomorphisms of distributive lattices.
  Czechoslovak Mathematical Journal 26 (1976), 330--338.
• Jakubik, J., Strongly projectable lattice ordered groups.
  Czechoslovak Mathematical Journal 26 (1976), 642--652.
• Jakubik, J., Kolibiar, M., Lattices with a third distributive operation.
  Mathematica Slovaca 27 (1977), 287--292.
• Jakubik, J., Radical classes and radical mappings of lattice ordered groups.
  Symposia mathematica 31 (1977), Academic Press, New York-London, 451--477.
• Jakubik, J., Archimedean kernel of a lattice ordered group.
  Czechoslovak Mathematical Journal 28 (1978), 140--154.
• Jakubik, J., Generalized Dedekind completion of a lattice ordered group.
  Czechoslovak Mathematical Journal 28 (1978), 294--311.
• Jakubik, J., Maximal Dedekind completion of an abelian lattice ordered group.
  Czechoslovak Mathematical Journal 28 (1978), 611--631.
• Jakubik, J., Orthogonal hull of a strongly projectable lattice ordered group.
  Czechoslovak Mathematical Journal 28 (1978), 484--504.
• Jakubik, J., On algebraic operations of a lattice ordered group.
  Colloquium mathematicum 61 (1979), 35--44.
• Jakubik, J., Generalized lattice identities in lattice ordered groups.
  Czechoslovak Mathematical Journal 30 (1980), 127--134.
• Jakubik, J., Isometries of lattice ordered groups.
  Czechoslovak Mathematical Journal 30 (1980), 142--152.
• Jakubik, J., Weak isomorphisms of lattice ordered groups.
  Czechoslovak Mathematical Journal 30 (1980), 438--444.
• Jakubik, J., Products of radical classes of lattice ordered groups.
  Acta Math. Univ. Comenianae 39 (1980), 31--42.
• Jakubik, J., On isometries of non-abelian lattice ordered groups.
  Mathematica Slovaca 31 (1981), 171--175.
• Jakubik, J., On value selectors and torsion classes of lattice ordered groups.
  Czechoslovak Mathematical Journal 31 (1981), 306--313.
• Jakubik, J., Prime selectors and torsion classes of lattice ordered groups.
  Czechoslovak Mathematical Journal 31 (1981), 325--337.
• Jakubik, J., On the lattice of torsion classes of lattice ordered groups.
  Czechoslovak Mathematical Journal 31 (1981), 510--513.
• Jakubik, J., On the lattice of radical classes of linearly ordered groups.
  Studia Scientiarum Mathem. Hungarica 19 (1981), 76--86.
• Jakubik, J., On linearly ordered subgroups of a lattice ordered group.
  Casopis pro pestovani matematiky 107 (1982), 175--179.
• Jakubik, J., Projectable kernel of a lattice ordered group.
  Universal Algebra and Applications, Banach Center Publ. Vol 9 (1982), 105--112.
• Jakubik, J., Torsion radicals of lattice ordered groups.
  Czechoslovak Mathematical Journal 32 (1982), 347--365.
• Jakubik, J., Distributivity of intervals of torsion radicals.
  Czechoslovak Mathematical Journal 32 (1982), 548--555.
• Jakubik, J., On lexico extensions of lattice ordered groups.
  Mathematica Slovaca 33 (1983), 81--84.
• Jakubik, J., On the lattice of semisimple classes of linearly ordered groups.
  Casopis pro pestovani matematiky 107 (1982), 183--190.
• Jakubik, J., On K-radical classes of lattice ordered groups.
  Czechoslovak Mathematical Journal 33 (1983), 149--163.
• Jakubik, J., Kolibiar, M., Isometries of multilattice groups.
  Czechoslovak Mathematical Journal 33 (1983), 602--612.
• Jakubik, J., On isometries of lattices.
  Mathematica Slovaca 34 (1984), 177--184.
• Jakubik, J., On lattices determined up to isomorphisms by their graphs.
  Czechoslovak Mathematical Journal 34 (1984), 305--314.
• Jakubik, J., Kernels of lattice ordered groups defined by properties of sequences.
  Casopis pro pestovani matematiky 109 (1984), 290--298.
• Jakubik, J., On radical classes of abelian linearly ordered groups.
  Mathematica Slovaca 35 (1985), 141--154.
• Jakubik, J., On isomorphisms of graphs of lattices.
  Czechoslovak Mathematical Journal 35 (1985), 188--200.
• Jakubik, J., Graph isomorphism of semimodular lattices.
  Mathematica Slovaca 35 (1985), 229--232.
• Jakubik, J., On weak direct decompositions of lattices and graphs.
  Czechoslovak Mathematical Journal 35 (1985), 269--277.
• Jakubik, J., Covering graphs and subdirect decompositions of partially ordered sets.
  Mathematica Slovaca 36 (1986), 151--162.
• Jakubik, J., On strictly positive lattice ordered semigroups.
  Czechoslovak Mathematical Journal 36 (1986), 31--34.
• Jakubik, J., Radical subgroups of lattice ordered groups.
  Czechoslovak Mathematical Journal 36 (1986), 285--297.
• Jakubik, J., Lexicographic product decompositions of a linearly ordered group.
  Czechoslovak Mathematical Journal 36 (1986), 553--563.
• Cernak, S., Jakubik, J., Completion of a cyclically ordered group.
  Czechoslovak Mathematical Journal 37 (1987), 157--174.
• Jakubik, J., Closure operators on the lattice of radical classes of lattice ordered groups.
  Czechoslovak Mathematical Journal 38 (1988), 71--77.
• Jakubik, J., K-radical classes of abelian linearly ordered groups.
  Mathematica Slovaca 38 (1988), 33--44.
• Jakubik, J., Pringerova, G., Representations of cyclically ordered groups.
  Casopis pro pestovani matematiky 113 (1988), 197--208.
• Jakubik, J., Unequivocal linearly ordered groups.
  Czechoslovak Mathematical Journal 38 (1988), 245--255.
• Jakubik, J., Convergences and complete distributivity of lattice ordered groups.
  Mathematica Slovaca 38 (1988), 269--272.
• Jakubik, J., Weak isometries of lattice ordered groups.
  Mathematica Slovaca 38 (1988), 133--138.
• Jakubik, J., Pringerova, G., Radical classes of cyclically ordered groups.
  Mathematica Slovaca 38 (1988), 255--268.
• Jakubik, J., Sequential convergences in Boolean algebras.
  Czechoslovak Mathematical Journal 38 (1988), 520--530.
• Jakubik, J., On summability in convergence ellipse -groups.
  Casopis pro pestovani matematiky 113 (1988), 286--292.
• Jakubik, J., On direct product decompositions of directed sets.
  Mathematica Slovaca 38 (1988), 45--49.
• Jakubik, J., Lexicographic factors of a linearly ordered group.
  Czechoslovak Mathematical Journal 39 (1989), 111--119.
• Jakubik, J., Retracts of abelian cyclically ordered groups.
  Archivum mathematicum 25 (1989), 13--18.
• Jakubik, J., On some types of kernels of a convergence ellipse -groups.
  Czechoslovak Mathematical Journal 39 (1989), 239--247.
• Jakubik, J., Retracts of abelian lattice ordered groups.
  Czechoslovak Mathematical Journal 39 (1989), 477--489.
• Jakubik, J., Direct product decompositions of directed groups.
  Czechoslovak Mathematical Journal 39 (1989), 618--621.
• Harminc, M., Jakubik, J., Maximal convergences and minimal proper convergences in ellipse -groups.
  Czechoslovak Mathematical Journal 39 (1989), 631--640.
• Jakubik, J., On a radical class of lattice ordered groups.
  Czechoslovak Mathematical Journal 39 (1989), 641--643.
• Jakubik, J., Lattice ordered groups having a largest convergence.
  Czechoslovak Mathematical Journal 39 (1989), 717--729.
• Jakubik, J., Retract varieties of lattice ordered groups.
  Czechoslovak Mathematical Journal 40 (1990), 104--112.
• Jakubik, J., On lattice ordered groups having a unique addition.
  Czechoslovak Mathematical Journal 40 (1990), 311--314.
• Jakubik, J., On disjoint subsets of a complete lattice ordered group.
  Casopis pro pestovani matematiky 115 (1990), 165--170.
• Jakubik, J., On completions of linearly ordered groups.
  Casopis pro pestovani matematiky 115 (1990), 278--282.
• Jakubik, J., On torsion classes generated by radical classes of lattice ordered groups.
  Archivum mathematicum 26 (1990), 115--119.
• Jakubik, J., Convergences and higher degrees of distributivity of lattice ordered groups and of Boolean algebras.
  Czechoslovak Mathematical Journal 40 (1990), 453--458.
• Jakubik, J., Cyclically ordered groups with unique addition.
  Czechoslovak Mathematical Journal 40 (1990), 534--538.
• Jakubik, J., On directed interpolation groups.
  Czechoslovak Mathematical Journal 40 (1990), 648--658.
• Jakubik, J., Valuations on modular lattices.
  Mathematica Bohemica 116 (1991), 391--395.
• Jakubik, J., Selfduality of the system of intervals of a partially ordered set.
  Czechoslovak Mathematical Journal 41 (1991), 135--140.
• Jakubik, J., Completions and closures of cyclically ordered groups.
  Czechoslovak Mathematical Journal 41 (1991), 160--169.
• Jakubik, J., Maximal antichains in a partially ordered set.
  Czechoslovak Mathematical Journal 41 (1991), 75--84.
• Jakubik, J., Mixed product decompositions of directed groups.
  Czechoslovak Mathematical Journal 41 (1991), 429--435.
• Jakubik, J., Lattice ordered groups with unique addition must be archimedean.
  Czechoslovak Mathematical Journal 41 (1991), 559--563.
• Jakubik, J., Sequential convergences on ellipse -groups without Urysohn's axiom.
  Czechoslovak Mathematical Journal 42 (1992), 1--16.
• Jakubik, J., On convexities of lattices.
  Czechoslovak Mathematical Journal 42 (1992), 325--330.
• Jakubik, J., Sequential convergences on free lattice ordered groups.
  Mathematica Bohemica 117 (1992), 48--54.
• Jakubik, J., Sequential convergences in lattices.
  Mathematica Bohemica 117 (1992), 239--250.
• Jakubik, J., On projective intervals in a modular lattice.
  Mathematica Bohemica 117 (1992), 293--298.
• Jakubik, J., Partially ordered sets with nondistributive lattice of maximal antichains.
  Czechoslovak Mathematical Journal 42 (1992), 685--691.
• Jakubik, J., On directed groups with additional operations.
  Mathematica Bohemica 118 (1993), 11--17.
• Jakubik, J., Complete retract mappings of a complete lattice ordered group.
  Czechoslovak Mathematical Journal 43 (1993), 301--318.
• Jakubik, J., On systems of sequences of reals.
  Tatra Mountains Math. Publ. 2 (1993), 19--23.
• Jakubik, J., On filters of ordered semigroups.
  Czechoslovak Mathematical Journal 43 (1993), 519--522.
• Jakubik, J., Csontoova, M., Convex isomorphisms of directed multilattices.
  Mathematica Bohemica 118 (1993), 359--379.
• Jakubik, J., On strong superlattices.
  Mathematica Slovaca 44 (1994), 131-138.
• Jakubik, J., G. Pringerova, Direct limits of cyclically ordered groups.
  Czechoslovak Mathematical Journal 44 (1994), 231-250.
• Jakubik, J., On convexities of d-groups.
  Czechoslovak Mathematical Journal 44 (1994), 305-314.
• Jakubik, J., Sequential convergences in distributive lattices.
  Mathematica Bohemica 119 (1994), 245-254.
• Jakubik, J., On extended cyclic orders.
  Czechoslovak Mathematical Journal 44 (1994), 661-675.
• Jakubik, J., Direct product decomposition of MV-algebras.
  Czechoslovak Mathematical Journal 44 (1994), 725-739.
• Jakubik, J., On some completeness properties for lattice ordered groups.
  Czechoslovak Mathematical Journal 45 (1995), 253--266.
• Jakubik, J., On complete MV-algebras.
  Czechoslovak Mathematical Journal 45 (1995), 473--480.
• Jakubik, J., Affine completeness of complete lattice ordered groups.
  Czechoslovak Mathematical Journal 3 (1995), 571--576.
• Jakubik, J., Sequential convergences on MV-algebras.
  Czechoslovak Mathematical Journal 45 (1995), 709--726.
• Jakubik, J., On sequences in vector lattices.
  Mathematica Bohemica 120 (1995), 379--386.
• Jakubik, J.: Convexities of lattice ordered groups.
  Mathematica Bohemica 121 1996, 59--67.
• Jakubik, J.: On complete lattice ordered groups with strong units.
  Czechoslovak Mathematical Journal 46 (1996), 221--230.
• Jakubik, J.: Directly indecomposable direct factors of a lattice.
  Mathematica Bohemica 121 (1996), 281--292.
• Jakubik, J.: Principal convergences on lattice ordered groups.
  Czechoslovak Mathematical Journal 46 (1996), 721--732.
• Jakubik, J.: On half lattice ordered groups.
  Czechoslovak Mathematical Journal 46 (1996), 745--767.
• Jakubik, J., Lihova, J.: Systems of intervals of partially ordered sets.
  Mathematica Slovaca 46 (1996), 355--361.
• Jakubik, J.: Convergence l-groups with zero radical.
  Mathematica Bohemica 122 (1997), 63--73.
• Jakubik, J.: Unions of uniquely complemented lattices.
  Mathematica Bohemica 122 (1997), 147--152.
• Jakubik, J.: Lateral and Dedekind completions of strongly projectable lattice ordered groups.
  Czechoslovak Mathematical Journal 47 (1997), 511--523.
• Jakubik, J.: Closed convex l-subgroups and radical classes of convergence l-groups.
  Mathematica Bohemica 122 (1997), 301--315.
• Jakubik, J.: Sequential convergences in a vector lattice.
  Mathematica Bohemica 123 (1998), 33--48.
• Jakubik, J.: Convex isomorphisms of archimedean lattice ordered groups.
  Mathware and Soft Computing 5 (1998), 49--56.
• Jakubik, J.: Atomicity of the Boolean algebra of direct factors of a directed set.
  Mathematica Bohemica 123 (1998), 145--161.
• Jakubik, J.: Partially ordered sets having selfdual system of intervals.
  Mathematica Bohemica 123 (1998), 271--278.
• Jakubik, J.: Lexicographic product decompositions of cyclically ordered groups.
  Czechoslovak Mathematical Journal 48 (1998), 229--241.
• Jakubik, J.: Radical classes of generalized Boolean algebras.
  Czechoslovak Mathematical Journal 48 (1998), 253--268.
• Jakubik, J., Csontoova, M.: Affine completeness of projectable lattice ordered groups.
  Czechoslovak Mathematical Journal 48 (1998), 359--363.
• Jakubik, J.: On archimedean MV-algebras.
  Czechoslovak mathematical Journal 48 (1998), 575--582.
• Jakubik, J.: Complete generators and maximal completions of MV-algebras.
  Czechoslovak Mathematical Journal 48 (1998), 597--608.
• Jakubik, J.: Disjoint sequences in Boolean algebras.
  Mathematica Bohemica 123 (1998), 411--418.
• Jakubik, J., Pringerova, G.: On $\vee$-irreducible elements in the positive cone of an l-group.
  Acta Univ. M. Belii, Math. 6 (1998), 21--29.
• Jakubik, J.: Subdirect product decompositions of MV-algebras.
  Czechoslovak Mathematical Journal 49 (1999), 163--173.
• Jakubik, J.: Radical classes of MV-algebras
  Czechoslovak Mathematical Journal 49 (1999), 191--211.
• Jakubik, J.: Graph automorphisms of a finite modular lattice.
  Czechoslovak Mathematical Journal 49 (1999), 443--447.
• Jakubik, J.: Cantor-Bernstein theorem for MV-algebras.
  Czechoslovak Mathematical Journal 49 (1999), 517--526.
• Jakubik, J.: Radical classes of complete lattice ordered groups.
  Mathematica Slovaca 49 (1999), 417--424.
• Jakubik, J.: Distinguished extensions of an MV-algebra.
  Czechoslovak Mathematical Journal 49 (1999), 867--876.
• Jakubik, J., Csontoova, M.: Cancellation rule for internal direct product decompositions of a connected partially ordered set.
  Mathematica Bohemica 125 (2000), 115--122.
• Jakubik, J., Cernak, S.: On convex linearly ordered subgroups of an hl-group.
  Mathematica Slovaca 50 (2000), 127--133.
• Jakubik, J.: Nearly disjoint sequences in convergence l-groups.
  Mathematica Bohemica 125 (2000), 139--144.
• Jakubik, J.: Retract mappings in projectable MV-algebras.
  Soft Computing 4 (2000), 27--32.
• Jakubik, J.: Lateral completion of a projectable lattice ordered group.
  Czechoslovak Mathematical Journal 50 (2000), 431--444.
• Jakubik, J.: Direct product decompositions of infinitely distributive lattices.
  Mathematica Bohemica 125 (2000), 341--354.
• Jakubik, J.: On cut completions of abelian lattice ordered groups.
  Czechoslovak Mathematical Journal 50 (2000), 587--602.
• Jakubik, J.: Convexities of normal valued lattice ordered groups.
  Czechoslovak Mathematical Journal 50 (2000), 641--649.
• Jakubik, J.: Graph automorphisms of semimodular lattices.
  Mathematica Bohemica 125 (2000), 459--464.
• Jakubik, J.: Completeness properties for MV-algebras.
  Multple Valued Logic 6 (2001), 157--169.
• Jakubik, J.: Lexicographic products of half linearly ordered groups.
  Czechoslovak Mathematical Journal 51 (2001), 127--138.
• Jakubik, J.: On iterated limits of subsets of a convergence l-groups.
  Mathematica Bohemica 126> (2001), 53--61.
• Jakubik, J.: Weak $\sigma$-distributivity of lattice ordered groups.
  Mathematica Bohemica 126 (2001), 151--159.
• Jakubik, J.: On chains in MV-algebras.
  Mathematica Slovaca 51 (2001), 151--166.
• Jakubik, J.: Regular representations of semisimple MV-algebras by continuous real functions.
  Mathematica Slovaca 51 (2001), 269--274.
• Jakubik, J., Fric, R.: Sequential convergences on Boolean algebras defined by systems of maximal filters.
  Czechoslovak Mathematical Journal 51 (2001), 261--274.
• Jakubik, J.: Direct product decompositions of pseudo MV-algebras.
  Archivum Mathematicum 37 (2001), 131--142.
• Jakubik, J.: State homomorphisms of MV-algebras.
  Czechoslovak Mathematical Journal 51 (2001), 609--616.
• Jakubik, J.: Distinguished completion of a direct product of lattice ordered groups.
  Czechoslovak Mathhematical Journal 51 (2001), 661--671.
• Jakubik, J.: On the congruence lattice of an abelian lattice ordered group.
  Mathematica Slovaca 126 (2001), 269--274.
• Jakubik, J.: Basic elements in a pseudo MV-algebras.
  Soft Computing 5 (2001), 372--375.
• Jakubik, J.: Convex mappings of archimedean MV-algebras.
  Mathematica Slovaca 51 (2001), 383--391.
• Jakubik, J.: Complete distributivity of lattice ordered groups and vector lattices.
  Czechoslovak Mathematical Journal 51 (2001), 889--896.
• Jakubik, J.: Strong subdirect productsof MV-algebras.
  Mathematica Slovaca 51 (2001), 507--520.
• Jakubik, J.: A theorem of Cantor-Bernstein type for othogonally $\sigma$-complete pseudo MV-algebras.
  Tatra Mountain Mathem. Publication 22 (2001), 91--103.
• Jakubik, J.: Sequential convergences on generalized Boolean algebras.
  Mathematica Bohemica 127 (2002), 1--14.
• Jakubik, J.: Completely subdirect producst of directed sets.
  Mathematica Bohemica 127 (2002), 71--81.
• Jakubik, J.: General comparability of pseudo MV-algebras.
  Mathematica Slovaca 52 (2002), 13--17.
• Jakubik, J.: On half cyclically ordered groups.
  Czechoslovak Mathematical Journal 52 (2002), 275--294.
• Jakubik, J.: On the lattice of additive hereditary properties of finite graphs.
  Discussiones Mathematicae, General Algebra and Applications 22 (2002), 73--86.
• Jakubik, J.: Cantor Bernstein theorem for lattices.
  Mathematica Bohemica 127 (2002), 463--471.
• Jakubik, J.: Radical classes of distributive lattices having the least element.
  Mathematica Bohemica 127 (2002), 409--425.
• Jakubik, J.: On direct and subdirect product decompositions of partially ordered sets.
  Mathematica Slovaca 52 (2002), 377--395.
• Jakubik, J.: Torsion classes of Specker lattice ordered groups.
  Czechoslovak mathematical Journal 52 (2002), 469--482.
• Jakubik, J.: On intervals and isometries of MV-algebras.
  Czechoslovak mathematical Journal 52 (2002), 651--663.
• Jakubik, J.: On the $\alpha$-completeness of pseudo MV-algebras.
  Mathematica Slovaca 52 (2002), 511--516.
• Jakubik, J.: On product MV-algebras.
  Czechoslovak Mathematical Journal 52, 797--810.
• Jakubik, J.: On orthogonally $\sigma$-complete lattice ordered groups.
  Czechoslovak Mathematical Journal 52 (2002), 881--888.
• Jakubik, J.: Graph automorphisms and cells of lattices.
  Czechoslovak Mathematical Journal 53 (2003), 103--111.
• Jakubik, J.: Convex chains in a pseudo MV-algebra.
  Czechoslovak Mathematical Journal 53 (2003), 113--125.
• Jakubik, J.: Torsion classes of MV-algebras.
  Soft Computing 7 (2003), 468--471.
• Jakubik, J.: Maximal completion of a pseudo MV-algebra.
  Archivum mathematicum 39 (2003), 141--161.
• Jakubik, J.: On free MV-algebras.
  Czechoslovak Mathematical Journal 23 (2003), 311--317.
• On absolute retracts and absolute convex retracts in some classes of l-groups.
  Discussiones Mathematicae, General Algebra and Applications 23(2003), 19--30.
• Jakubik, J.: Higher degrees of distributivity in MV-algebras.
  Czechoslovak Mathematical Journal 53 (2003), 641--654.
• Jakubik, J.: Projectability and splitting property of lattice ordered groups.
  Czechoslovak Mathematical Journal 53 (2003), 907--915.
• Jakubik, J.: On vierieties of pseudo MV-algebras.
  Czechoslovak Mathematical Journal 53 (2003), 1031--1040.
• Jakubik, J.: On Caratheodory vector lattices.
  Mathematica Slovaca 53 (2003), 479--503.
• Jakubik, J.: Isometries of MV-algebras.
  Mathematica Slovaca 54 (2004), 43--48.
• Jakubik, J.: Generalized cardinal properties of lattices and lattice ordered groups.
  Czechoslovak Mathematical Journal 54 (2004), 1035--1053.
• Jakubik, J. On the affine completeness of lattice ordered groups.
  Czechoslovak Mathematical Journal 54 (2004), 423--429.
• Jakubik, J.: On some interpolation for lattice ordered groups.
  Czechoslovak Mathematical Journal 54 (2004), 499--507.
• Jakubik, J.: On the Schroder-Bernstein problem for abelian lattice ordered groups and for MV-algebras.
  Soft Computing 8 (2004), 581--586.
• Jakubik, J.: Isomorphisms of direct products of lattice ordered groups.
  Discussiones Mathematicae, General Algebra and Applications 24 (2004), 43--52.
• Jakubik, J., Lihova, L.: On the cancellation law for disconnected partially ordered sets.
  Mathematica Slovaca 54 (2004), 215--223.
• DiNola, A., Dvurecenskij, A., Jakubik, J.: Good and bad infinitesimals and states in pseudo MV-algebras.
  Order 21 (2004), 293--314.
• Jakubik, J.: On vector lattices of elementary Caratheodory functions.
  Czechoslovak Mathematical Journal 55 (2005), 223--236.
• Jakubik, J.: Generalized Boolean algebra extensions of lattice ordered groups.
  Tatra Mountain Mathem. Publications 30 (2005), 1--19.
• Jakubik, J.: Direct product decompositions of pseudo effect algebras.
  Mathematica Slovaca 55 (2005), 379--398.
• Jakubik, J.: Affine completeness and lexicographic product decompositions of abelian lattice ordered groups.
  Czechoslovak Mathematical Journal 55 (2005), 917--922.
• Jakubik, J.: Strong projectability of lattice ordered groups.
  Czechoslovak Mathematical Journal 55 (2005), 957--973.
• Jakubik, J.: Weak (m,n)-distributivity of lattice ordered groups of generalized MV-algebras.
  Soft Computing 10 (2006), 119--124.
• Jakubik, J.: On a homogeneity condition for MV-algebras.
  Czechoslovak Mathematical Journal 56 (2006), 79--97.
• Jakubik, J.: Torsion classes and subdirect products of Caratheodory vector lattices.
  Mathematica Slovaca 56 (2006), 79--92.
• Jakubik, J.: On intervals and the dual of a pseudo MV-algebra.
  Mathematica Slovaca 56 (2006), 213--221.
• Jakubik, J.: On monotone permutations of l-cyclically ordered sets.
  Czechoslovak Mathematical Journal 56 (2006), 403--415.
• Jakubik, J.: Subdirect decompositions and the radical of a Boolean algebra extension of a lattice ordered group.
  Czechoslovak Mathematical Journal 56 (2006), 733--754.
• Jakubik, J.: Convergences on lattice ordered groups with a finite number of disjoint elements.
  Mathematica Slovaca 56 (2006), 289--299.
• Jakubik, J.: On interval subalgebras of generalized MV-algebras.
  Mathematica Slovaca 56 (2006), 387--395.
• Jakubik, J.: Weak homogeneity and Pierce's theorem for MV-algebras.
  Czechoslovak Mathematical Journal 56 (2006), 1215--1227.
• Jakubik, J.: Sequential convergences on pseudo MV-algebras.
  Mathematica Slovaca 56 (2006), 501--510.
• Jakubik, J.: Isometries of generalized MV-algebras.
  Czechoslovak Mathematical Journal 57 (2007), 161--171.
• Jakubik, J.: On idempotent modifications of MV-algebras.
  Czechoslovak Mathematical Journal 57 (2007), 243--252.