Vol 34 No 1 (2020)

Zygfryd Kominek, a mathematician, a teacher, a friend

Maciej Sablik

1-26

PDF

Limits of sequences of feebly-type continuous functions

Marek Balcerzak, Tomasz Natkaniec, Małgorzata Terepeta

27-35

PDF

Remarks connected with the weak limit of iterates of some random-valued functions and iterative functional equations

Karol Baron

36-44

PDF

Some kinds of sparseness on the real line and ideals on ω

Małgorzata Filipczak, Grażyna Horbaczewska

45-50

PDF

On iteration of bijective functions with discontinuities

Harald Fripertinger

51-72

PDF

Delta-convexity with given weights

Roman Ger

73-80

PDF

On the Borel classes of set-valued maps of two variables

L'ubica Holá, Grażyna Kwiecińska

81-95

PDF

On a functional equation appearing on the margins of a mean invariance problem

Justyna Jarczyk, Witold Jarczyk

96-103

PDF

Generalization of the harmonic weighted mean via Pythagorean invariance identity and application

Peter Kahlig, Janusz Matkowski

104-122

PDF

Ohlin and Levin-Stečkin-type results for strongly convex functions

Kazimierz Nikodem, Teresa Rajba

123-132

PDF

On a separation theorem for delta-convex functions

Andrzej Olbryś

133-141

PDF

An elementary proof for the decomposition theorem of Wright convex functions

Zsolt Páles

142-150

PDF

Connections between the completion of normed spaces over non-archimedean fields and the stability of the Cauchy equation

Jens Schwaiger

151-163

PDF

Convergence in measure and in category

Władysław Wilczyński

164-168

PDF

Vol 34 No 1 (2020):