KAROL BARON, Marek Kuczma .................................... 9-16
JACEK CHMIELINSKI AND PAWEL WÓJCIK, ρ-Orthogonality and its
preservation - revisited ................................. 17-30
KRZYSZTOF CIEPLIŃSKI AND ZBIGNIEW LEŚNIAK, On conjugacy
equation in dimension one ................................ 31-44
ZOLTÁN DARÓCZY AND ZSOLT PÁLES, On an elementary inclusion
problem and gen eralized weighted quasi-arithmetic
means .................................................... 45-54
WITOLD JARCZYK, Convexity and almost convexity in groups .... 55-76
VYACHESLAV S. KALNITSKY, Determinant criteria of
solvability .............................................. 77-86
RAFAL KAPICA AND JANUSZ MORAWIEC, Refinement type
equations: sources and results .......................... 87-110
ZENON MOSZNER, On the inverse stability of functional
equations .............................................. 111-121
MAREK NIEZGODA, A review of selected topics in
majorization theory .................................... 123-154
EKATERINA SHULMAN, Addition theorems and related
geometric problems of group representation theory ...... 155-172
HENRIK STETKǼR, D'Alembert's functional equation on
groups ................................................. 173-191
LÁSZLO SZÉKELYHIDI, The Levi-Civita equation, vector
modules and spectral synthesis ......................... 193-206
JACEK TABOR, JÓZEF TABOR AND KRZYSZTOF MISZTAL,
Generalized midconvexity ............................... 207-215
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