INSTYTUT MATEMATYKI
Uniwersytet ¦l±ski
40-007 Katowice, ul. Bankowa 14

tel/fax (032) 2582976
e-mail:im@ux2.math.us.edu.pl


     Zygfryd Kominek – SPIS PUBLIKACJI


  1. On the sum and difference of two sets in topological vector spaces, Fundamenta Math. 71(1971), 165-169.
  2. Some generalization of S.Piccard theorem, Zeszyty Naukowe USl., IV(1973), 31-33.
  3. On the existence of convex solution of a functional equation, Annales Polon. Math. 30(1974), 1-4 (wspólnie z J. Matkowskim).
  4. Cr-solution of a system of a functional equation, Annales Polon. Math. 30(1974), 191-203.
  5. On the uniqueness and the existence of solutions with some asymptotic properties of a system of functional equations,  Prace Mat. USl. 7(1977), 57-63.
  6. On some classes connected with the continuity of additive and Q-convex functions, Prace Mat. USl. 8(1978), 60-63 (wspólnie z B. Kominek).
  7. On the behaviour of Cr-solutions of a system of functional equations, Revue Rom. Math. Pures et Appl. 23, No 2,(1978), 1067-1076.
  8. Some theorems on differentiable solutions of a system of functional equations of n-th order, Annales Polon. Math. 37(1980), 71-91.
  9. On the functional equation φ(x) = h(x,φ[f(x)]), Demonstratio Math. 14, No 4, (1981), 1-15.
  10. On the continuity of Q-convex functions and additive functions, Aequationes Math. 23(1981), 146-150.
  11. A generalization of K.Goebel’s and J.Matkowski’s theorems, Prace Mat. USl. 12(1982), 30-33.
  12. Some remarks on the Boyd-Wong theorem, Glasnik Mat. 17(1982), 313-319.
  13. Some remarks on the set-classes AN and BN, Commentationes Math. 23(1983), 49-52.
  14. Measure, category and the sum of sets, Amer. Math. Mounthly, 90 No 8 (October 83), 561-562.
  15. On a decomposition of the space of real numbers, Glasnik Mat. 19(39), (1984), 231-233.
  16. The recurrent sequences of inequalities, Prace Mat. USl., Annales Math. Silesinae 3(15)(1985), 41-44.
  17. Some remarks on a theorem of Steinhaus, Glasnik Mat. 20(40)(1985), 337-344 (wspólnie z H.I. Millerem).
  18. Generalized Smital’s lemma and theorem of Steinhaus, Radovi Mat. 1(1985), 101-119 (wspólnie z R. Gerem i M. Sablikiem).
  19. On the functional equation φ(x) = αφ(αx) + (1 − α)φ(1 − (1 − α)x), Bulletin Math. Rom.  30(78), No 4(1986), 327-334     (wspólnie z J. Matkowskim).
  20. On some property of J-concave functions, Radovi Mat. 3(1987), 143-147.
  21. On additive and convex functionals, Radovi Mat. 3(1987), 267-279.
  22. On some equivalent form of a Steinhaus theorem, Mathematica (Cluj) 30(53), No 1(1988), 25-27.
  23. On a problem of K. Nikodem, Arch. Math. 50(1988), 287-288.
  24. Boundedness and continuity of additive and convex functionals, Aequationes Math. 37(1989), 252-258 (wspólnie z R. Gerem).
  25. Theorems of Bernstein-Doetsch, Piccard and Mehdi and semilinear topology, Arch. Math. 52(1989), 595-502 (wspólnie z M. Kuczm±).
  26. A characterization of convex functions in linear spaces, Opuscula Math. 5(1989), 71-74.
  27. Some properties of a decomposition of group, Commentationes Math. 28(1989), 249-252.
  28. On a local stability of the Jensen functional equation, Demonstratio Math. 22(2)(1989), 499-504.
  29. On the lower hull of convex functions, Aequationes Math. 38(1989), 192-210 (wspólnie z M. Kuczm±).
  30. Convex functions in linear spaces, Prace Mat. USl. 1087(1989), 1-71.
  31. On functions that preserve a certain class of sets, Boll. Un. Mat. Ital. A(7)4(1990), No 2, 165-172 (wspólnie z H.I. Millerem).
  32. Additive and J-convex functions majorized by measurable functions, Radovi Mat. 6(1990), 49-53.
  33. Convex functions and epigraphs, Radovi Mat. 6(1990), 97-110.
  34. On approximately subadditive functions, Demonstratio Math. 23(1)(1990), 155-160.
  35. p-convex functions in linear spaces, Annales Polon. Math. 53.2(1991), 191-208 (wspólnie z M. Kuczm±).
  36. On separation theorems for subadditive and superadditive functionals, Studia Math. 100(1)(1991) (wspólnie z Z. Gajd±).
  37. On (a,b)-convex functions, Arch. Math. 58(1992), 64-69.
  38. Theorem of Bernstein-Doetsch in Baire spaces, Annales Math. Silesianae 5(1991), 10-17 (wspólnie z M. Kuczm±).
  39. Convex functions and some set classes, Rocznik dydaktyczny WSP w Krakowie, Prace Mat. 13(1993), 187-196.
  40. Note on polynomial functions, Annales Math. Silesianae 7(1993), 7-15.
  41. On a result of W.Stadje, Zeszyty Naukowe Politechniki ¦l±skiej w Gliwicach, Mat.-Fiz. z. 68(1993), 153-163.
  42. Boundedness and linearity of additive functionals, Opuscula Math. 14(1994), 83-87.
  43. On stability of the Pexider equation on semigroups, Th.M.Rassias and J.Tabor eds. Stability of mappings of Hyers-Ulam type, Hadronic Press, Palm Harbor, Florida 34682-1577, USA., ISBN 0-911767-64-9, (1994), 111-116 (wspólnie z E. Głowackim).
  44. On stability of the homogeneity condition, Results in Math. 27(1995), 373-380 (wspólnie z J. Matkowskim).
  45. Translations in normed spaces, Publicationes Math. (Debrecen) 49,3-4(1996), 295-299.
  46. Note on a selection of Jensen set-valued functions, Tatra Mount.Math. Publ. 14(1998), 1-5.
  47. On additive functions fulfilling some additional conditions, Sitzungsber. Abt. II(1988)207:35-42 (wspólnie z L. Reichem i J. Schwaigerem).
  48. On sets for which the difference set is the whole space, Rocznik Naukowo-Dydaktyczny WSP w Krakowie, zeszyt 207, Prace Mat. 16(1999), 45-51, (wspólnie z W.Wilczyńskim).
  49.  On some properties of the quasisymmetry quotients of functions, Aequationes Math. 358(1999), 93-99.
  50. Convex functions with respect to logarithmic mean and sandwich theorem, Acta Univ. Carolinae 40(1999), No 2, 75-78,  (wspólnie z T. Zgraj±).
  51. Generalized norms and convexity, Publicationes Math. (Debrecen) 60(2002), 1-2, 63-73 (wspólnie z B. Batko i J.Taborem).
  52. Solution of Rolewicz’s problem, http://www.siam.org/journals/problems/01-005.htm (wspólnie z B. Choczewskim i R. Girgensohnem).
  53. On a problem of Wu Wei Chao, Annales Math. Silesianae 16(2002), 17-20.
  54. A proof of S.Rolewicz’s conjecture, Annales Acad. Pedag. Cracoviensis, Folia 13(2002), 5-11 (wspólnie z B. Choczewskim).
  55. A continuity result on t-Wright-convex functions, Publicationes Math. (Debrecen) 63(2003), 1-2, 213-219.
  56. On functionals with Cauchy difference bounded by a homogeneous functional, Bull. Pol. Acad. Sci. Mathematics 51, No 3(2003), 301-307 (wspólnie z K. Baronem).
  57. On Hyers-Ulam stability of the Pexider equation, Demonstratio Math. 37, No 2(2004), 373-376.
  58. On a functional equation arising in the theory of quasiconformal mappings, Aequationes Math. 70(2005), 37-42.
  59. A few remarks on almost C-polynomial functions, Math. Slovaka 55(2005), No. 5, 555-561.
  60. Nonstability results in the theory of convex functions, C.R.Math.Rep.Acad.Sci.Canada Vol. 28, (1), 2006, pp. 17-23 (wspólnie z J. Mrowcem).
  61. Some remarks on subquadratic functions, Demonstratio Math. Vol. 39, No 4, 2006, 751-758 (wspólnie z K. Troczk±).
  62. On a problem of Th. Davison, Tatra Mt. Math. Publ. 34 (2006), 229-235.
  63. Remarks on the stability of some quadratic functional equations, Opuscula Mat. Vol. 28, No. 4 (2008), 517-527.
  64. Stability of a quadratic functional equations on semigroups, Publ. Math. Debrecen  75/1-2 (2009), 173-178.
  65. On pseudoadditive mappings, Annales Math. Silesianae 22 (2008), 41-44.
  66. On a Jensen-Hosszú Equation I, Annales Math. Silesianae 23 (2009), 57-60.
  67. On non-measurable subsets of the real line, in the monograph dedicated to Profesor Władysław Wilczyński entitled Real functions, density topology and related topics, Wydawnictwo Uniwersytetu Łódzkiego 2011 r., 63-66.
  68. An Interplay Between Jensen's and Pexider Functional Equations on Semigroups, Annales Univ. Sci. Budapest., Sect. Comp. 35(2011), 107-124 (wspólnie z R. Gerem).
  69. On a Jensen-Hosszú Equation II, Math. Ineq. and Appl. 15, No.1.(2012), 61-67 (wspólnie z J. Sikorsk±) .
  70. Continuity of real valued subquadratic functions, Commentationes Math. Vol. 51, No 1(2011), 75-79 (wspólnie z K. Troczk±).
  71. On the Hyers-Ulam stability of Pexider-type extension of the Jensen-Hosszú equation, Bull. Int. Math. Virtual Institute Vol. 1(2011), 53-57.
  72. On a Drygas Inequality, Tatra Mount. Math. Publ. 52(2012), 65-70.
  73. (C-K)-strongly n-convex functions in linear spaces, Comment. Math. 53. No.2.(2013), 189-196.
  74. Fixed-Point Free AffineTransformations Having Invariant Lines, Annales Univ. Sci. Budapest Sect. Comp. 41(2013) 37-42.
  75. Stability Aspects of the Jensen-Hosszú Equation, Folia Mathematica, Traditional and present day topics in real analysis, Dedicated to Professor Jan Stanisław Lipiński on the occasion of his 90th birthday, (2013), 307-324.
  76. On pexiderized Jensen-Hosszú functional equation on the unit interval , J. Math. Anal. Appl. 409(2014), 722-728.
  77. Alienation of the logarithmic and exponential functional equations , Aequationes Mathematicae 90 (2016), no. 1, 107-121(wspólnie z J. Sikorsk±).



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