• DML-CZ Home
• Commentationes Mathematicae Universitatis Carolinae

Author: Kepka, Tomáš

• Kepka, Tomáš; Kinyon, Michael K.; Phillips, J. D.: F-quasigroups isotopic to groups. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 51 (2010), issue 2, pp. 267-277
• Ježek, J.; Kepka, Tomáš: A note on uniserial loops. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 51 (2010), issue 2, pp. 263-265
• Kala, Vítězslav; Kepka, Tomáš; Korbelář, Miroslav: Notes on commutative parasemifields. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 50 (2009), issue 4, pp. 521-533
• Kepka, Tomáš; Kinyon, Michael K.; Phillips, J. D.: F-quasigroups and generalized modules. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 49 (2008), issue 2, pp. 249-257
• Kala, Vítězslav; Kepka, Tomáš: A note on finitely generated ideal-simple commutative semirings. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 49 (2008), issue 1, pp. 1-9
• Flaška, Václav; Kepka, Tomáš; Šaroch, Jan: Bi-ideal-simple semirings. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 46 (2005), issue 3, pp. 391-397
• Ghoneim, S.; Kechlibar, M.; Kepka, Tomáš: Ordinary selfdistributive rings. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 46 (2005), issue 2, pp. 293-299
• Csörgö, Piroska; Kepka, Tomáš: On loops whose inner permutations commute. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 45 (2004), issue 2, pp. 213-221
• Kepka, Tomáš; Němec, Petr: Connected transversals -- the Zassenhaus case. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 41 (2000), issue 2, pp. 299-300
• Kepka, Tomáš; Phillips, Jon D.: Connected transversals to subnormal subgroups. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 38 (1997), issue 2, pp. 223-230
• El Bashir, Robert; Kepka, Tomáš: Notes on slender prime rings. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 37 (1996), issue 2, pp. 419-422
• Kepka, Tomáš: $\bigcap$-compact modules. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 36 (1995), issue 3, pp. 423-426
• Drápal, Aleš; Kepka, Tomáš; Musílek, Michal: Group conjugation has non-trivial LD-identities. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 35 (1994), issue 2, pp. 219-222
• Kepka, Tomáš: Ideals in selfdistributive groupoids. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 35 (1994), issue 1, pp. 187-191
• Kepka, Tomáš: Non-idempotent left symmetric left distributive groupoids. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 35 (1994), issue 1, pp. 181-186
• Kepka, Tomáš: Semirings whose additive endomorphisms are multiplicative. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 34 (1993), issue 2, pp. 213-219
• Kepka, Tomáš; Ščukin, K. K.: Simple quasigroups whose inner permutations commute. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 34 (1993), issue 2, pp. 223-227
• Kepka, Tomáš: $m$-medial $n$-quasigroups. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 32 (1991), issue 1, pp. 9-14
• Drápal, Aleš; Kepka, Tomáš: On a distance of groups and Latin squares. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 30 (1989), issue 4, pp. 621-626
• Drápal, Aleš; Kepka, Tomáš: Parity of orthogonal automorphisms. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 28 (1987), issue 2, pp. 251-259
• Drápal, Aleš; Kepka, Tomáš: Parity of orthogonal permutations. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 28 (1987), issue 3, pp. 427-432
• Kepka, Tomáš: A construction of commutative Moufang loops and quasimodules. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 27 (1986), issue 3, pp. 499-518
• Drápal, Aleš; Kepka, Tomáš: Group distances of Latin squares. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 26 (1985), issue 2, pp. 275-283
• Kepka, Tomáš: A construction of Bruck loops. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 25 (1984), issue 4, pp. 591-595
• Kepka, Tomáš; Kratochvíl, Jan: Graphs and associative triples in quasitrivial groupoids. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 25 (1984), issue 4, pp. 679-687
• Kepka, Tomáš; Němec, Petr: Torsion quasimodules. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 25 (1984), issue 4, pp. 699-717
• Kepka, Tomáš: Distributive groupoids and preradicals. I. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 24 (1983), issue 1, pp. 183-197
• Kepka, Tomáš: Distributive groupoids and preradicals. II. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 24 (1983), issue 2, pp. 199-209
• Ježek, Jaroslav; Kepka, Tomáš: Notes on distributive groupoids. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 24 (1983), issue 2, pp. 237-249
• Ježek, Jaroslav; Kepka, Tomáš: Free entropic groupoids. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 22 (1981), issue 2, pp. 223-233
• Kepka, Tomáš: A note on the number of associative triples in finite commutative Moufang loops. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 22 (1981), issue 4, pp. 745-753
• Drápal, Aleš; Kepka, Tomáš: A note on the number of associative triples in quasigroups isotopic to groups. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 22 (1981), issue 4, pp. 735-743
• Ježek, Jaroslav; Kepka, Tomáš: Semigroup representations of medial groupoids. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 22 (1981), issue 3, pp. 513-524
• Kepka, Tomáš: Commutative Moufang loops and distributive Steiner quasigroups nilpotent of class 3. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 21 (1980), issue 2, pp. 355-370
• Kepka, Tomáš: A note on associative triples of elements in cancellation groupoids. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 21 (1980), issue 3, pp. 479-487
• Kepka, Tomáš; Němec, Petr: Trilinear constructions of quasimodules. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 21 (1980), issue 2, pp. 341-354
• Kepka, Tomáš: Notes on quasimodules. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 20 (1979), issue 2, pp. 229-247
• Kepka, Tomáš; Němec, Petr: Quasimodules generated by three elements. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 20 (1979), issue 2, pp. 249-266
• Kepka, Tomáš: Distributive Steiner quasigroups of order $3^5$. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 19 (1978), issue 2, pp. 389-401
• Kepka, Tomáš: Epimorphisms in some groupoid varieties. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 18 (1977), issue 2, pp. 265-279
• Kepka, Tomáš: On a class of non-associative rings. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 18 (1977), issue 3, pp. 531-540
• Bican, Ladislav; Jambor, Pavel; Kepka, Tomáš; Němec, Petr: Centrally splitting radicals. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 17 (1976), issue 1, pp. 31-47
• Bican, Ladislav; Jambor, Pavel; Kepka, Tomáš; Němec, Petr: A note on test modules. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 17 (1976), issue 2, pp. 345-355
• Kepka, Tomáš: Structure of triabelian quasigroups. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 17 (1976), issue 2, pp. 229-240
• Bican, Ladislav; Jambor, Pavel; Kepka, Tomáš; Němec, Petr: Preradicals and change of rings. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 16 (1975), issue 2, pp. 201-217
• Ježek, Jaroslav; Kepka, Tomáš: Quasigroups, isotopic to a group. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 16 (1975), issue 1, pp. 59-76
• Ježek, Jaroslav; Kepka, Tomáš: Semigroup representations of commutative idempotent Abelian groupoids. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 16 (1975), issue 3, pp. 487-500
• Bican, Ladislav; Jambor, Pavel; Kepka, Tomáš; Němec, Petr: Composition of preradicals. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 15 (1974), issue 3, pp. 393-405
• Kepka, Tomáš: Costable rings. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 15 (1974), issue 2, pp. 245-257
• Kepka, Tomáš: Notes on radical filters of ideals. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 15 (1974), issue 1, pp. 149-159
• Bican, Ladislav; Jambor, Pavel; Kepka, Tomáš; Němec, Petr: Preradicals. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 15 (1974), issue 1, pp. 75-83
• Kepka, Tomáš: On one class of purities. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 14 (1973), issue 1, pp. 139-154
• Kepka, Tomáš: A note on compatible reflexive relations on quasigroups. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 13 (1972), issue 3, pp. 593-598
• Kepka, Tomáš: The totally simple quasigroups. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 13 (1972), issue 3, pp. 577-582