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The sixtieth birthday of Professor Bedřich Pondělíček. (English) Zbl 0777.01008

MSC:

01A70 Biographies, obituaries, personalia, bibliographies
01A60 History of mathematics in the 20th century

Biographic References:

Pondělíček, B.
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References:

[1] Note to the problem of intersecting broken lines (Czech). Čas. pěst. mat. 83 (1958), 236-240.
[2] On a certain group of endomorphisms on a simply ordered set I (Czech). Čas. pěst. mat. 84 (1959), 177-182.
[3] On a certain group of endomorphisms on a simply ordered set II (Czech). Čas. pěst. mat. 85 (1960), 263-273.
[4] Bemerkung zu einer Halbgruppe der Endomorphismen auf einer einfach geordneten Menge. Čas. pěst. mat. 85 (1960), 410-417. · Zbl 0122.02601
[5] On singular systems of integer-differential equations with constant coefficients and their realization by linear electric circerits (Czech). Práce ČVUT, řada III elektrotechnická, č. 5 (1965), 63-72.
[6] On characters of chains (Czech). Čas. pěst. mat. 91 (1966), 1-3
[7] On characters of semigroups whose idempotents form a chain (Czech). Čas. pěst. mat. 91 (1966), 4-7. · Zbl 0143.03501
[8] Note to the Richards transformation (Russian). Acta Polytechnica - Práce ČVUT, III 1 (1967), 27-34.
[9] The diameter of the graph of a semigroup (Czech). Čas. pěst. mat. 92 (1967), 206-211. · Zbl 0207.33102
[10] On periodic and recurrent compact groupoids. Čas. pěst. mat. 93 (1968), 262-272. · Zbl 0169.02702
[11] A contribution to the foundations of network theory using the distribution theory. Czechoslov. Math. J. 19(94) (1969), 697-710. · Zbl 0193.14502
[12] On a certain relation for closure operations on a semigroup. Czechoslov. Math. J. 20(95) (1970), 220-231. · Zbl 0198.34304
[13] Note on a certain relation for closure operations on a compact semigroup. Czechoslov. Math. J. 20(95) (1970), 337-339. · Zbl 0198.34401
[14] Contribution to the foundations of network theory using the distribution theory, II. Czechoslov. Math. J. 21(96) (1971), 35-45. · Zbl 0217.16703
[15] A certain equivalence on a semigroup. Czechoslov. Math. J. 21(96) (1971), 109-117. · Zbl 0217.36404
[16] Right prime ideals and maximal right ideals in semigroups. Mat. Čas. Slovensk. Akad. Vied 21 (1971), 87-90. · Zbl 0219.20043
[17] A note on classes of regularity in semigroups. Mat. Čas. Slovensk. Akad. Vied 21 (1971), 312-317. · Zbl 0235.20057
[18] Green’s relations on a compact semigroup. Czechoslov. Math. J. 22(97) (1972), 69-77. · Zbl 0235.22006
[19] Archimedean equivalence on ordered semigroups. Czechoslov. Math. J. 22(97) (1972), 210-219. · Zbl 0251.06025
[20] A note on an ideal quasi-order in semigroups. Publ. Math. Debrecen 18 (1972), 177-182.
[21] A characterization of semilattices of left or right groups. Czechoslov. Math. J. 22(97) (1972), 522-524. · Zbl 0247.20073
[22] A note on radicals of semigroups. Mat. Čas. Slovensk. Akad. Vied 23 (1973), 14-16. · Zbl 0253.20084
[23] A relation for closure operations on a semigroup. Mat. Čas. Slovensk. Akad. Vied 23 (1973), 249-256. · Zbl 0265.20053
[24] On weakly commutative semigroups. Czechoslov. Math. J. 25(100) (1975), 20-23. · Zbl 0307.20039
[25] A note on Hilbert formalism of quantum mechanics. Rep. on Math. Phys. 8 (1975), 75-77. · doi:10.1016/0034-4877(75)90019-1
[26] \(T\)-prime subsets in semigroups. Mat. Čas. Slovensk. Akad. Vied. 25 (1975), 223-229. · Zbl 0311.20047
[27] On semigroups having regular globals. Colloquia Math. Soc. János Bolyai 20. Algebraic theory of semigroups, Szeged, 1976, pp. 453-461.
[28] The chain of right ideals in rings and semigroups. Ann. Univ. Sci. Budapest, Sectio Math. 20 (1977), 21, 22. · Zbl 0372.16012
[29] On tolerances on periodic semigroups. Czechoslov. Math. J. 28(103) (1978), 647-649. · Zbl 0399.20053
[30] On the intersection graph of a commutative distributive groupoid. Math. Slovaca 29 (1979), 57-62. · Zbl 0408.20040
[31] The intersection graph of a simply ordered semigroup. Semigroup Forum 18 (1979), 229-233. · Zbl 0419.06008 · doi:10.1007/BF02574187
[32] The intersection graph of an ordered commutative semigroup. Semigroup Forum 19 (1980), 213-218. · Zbl 0429.06003 · doi:10.1007/BF02572517
[33] Relative compact elements in lattices. Colloquia Math. Soc. János Bolayai 33, Szeged (1980), 667-674.
[34] On representations of tolerance ordered commutative semigroups. Czechoslov. Math. J. 31(106) (1981), 153-158. · Zbl 0469.20035
[35] Uniform semigroups whose proper quasi-ideals are power joined. Semigroup Forum 22 (1981), 331-337. · Zbl 0465.20058 · doi:10.1007/BF02572812
[36] On compositional and convolutional discrete systems. Kybernetika 17 (1981), 277-286. · Zbl 0469.93066
[37] Note on a completely symmetrical semigroup. Notes on Semigroups VII, 1981-4, 1-4, Dept. of Math. Karl Marx Univ. of Economics, Budapest. · Zbl 0478.20042
[38] Atomicity of tolerance lattices of commutative semigroups. Czechoslov. Math. J. 33(108) (1983), 485-498. · Zbl 0535.20041
[39] Modularity and distributivity of tolerance lattices of commutative inverse semigroups. Czechoslov. Math. J. 35(110) (1985), 146-157. · Zbl 0581.20058
[40] Modularity and distributivity of tolerance lattices of commutative separative semigroups. Czechoslov. Math. J. 35(110) (1985), 333-337. · Zbl 0573.20062
[41] Note on quasi Hamiltonian semigroups. Čas. pěst. mat. 110 (1985), 356-358. · Zbl 0588.20036
[42] Semigroups whose proper one-sided ideals are \(t\)-archimedean. Mat. Věstnik 37 (1985), 315-321. · Zbl 0601.20055
[43] Tolerance distributive and tolerance modular varieties of commutative semigroups. Czechoslov. Math. J. 36(11) (1986), 485-488. · Zbl 0614.20043
[44] On a certain class of BCK-algebras with condition (S). Math. Japonica 31 (1986), no. 5, 775-782. · Zbl 0616.03044
[45] Tolerance distributive and tolerance boolean varieties of semigroups. Czechoslov. Math. J. 36(111) (1986), 617-622. · Zbl 0612.20033
[46] Note on band decompositions of weakly exponential semigroups. Ann. Univ. Sci. Budapest, Sectio Math 29 (1986), 139-141. · Zbl 0622.20054
[47] Note on nilpotency in semigroups. Math. Slovaca 37 (1987), 205-208. · Zbl 0632.20038
[48] Note on the congruence lattice of a commutative separative semigroup. Čas. pěst. mat. 113 (1988), 74-79. · Zbl 0639.20043
[49] Commutative semigroups whose lattice of tolerances is boolean. Czechoslov. Math. J. 38(113) (1988), 226-230. · Zbl 0657.20052
[50] Principal tolerance trivial commutative semigroups. Acta Sci. Math. 52 (1988), 29-33. · Zbl 0651.08002
[51] Direct decomposability of tolerances and congruences on semigroups. Czechoslov. Math. J. 38(113) (1988), 701-704. · Zbl 0668.08002
[52] Algebras with tolerance extension property in \(O\). Czechoslov. Math. J. 39(114) (1989), 142-146) · Zbl 0678.06003
[53] On \(\alpha \)-ideals and generalized \(\alpha \)-ideals in semigroups. Czechoslov. Math. J. 39(114) (1989), 522-527) · Zbl 0684.20053
[54] Tolerance modular varieties of semigroups. Czechoslov. Math. J. 40(115) (1990), 441-452. · Zbl 0731.20039
[55] On varieties of regular \(\ast \)-semigroups. Czechoslov. Math. J. 42(116) (1991), 110-119. · Zbl 0790.20077
[56] On varieties of regular \(\ast \)-semigroups, II. Czechoslov. Math. J. 41(116) (1991), 512-517. · Zbl 0747.20028
[57] On permutability in semigroup varieties. Mathematica Bohemica 116 (1991), 396-400. · Zbl 0746.20034
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