Sommaire

Marek Kuczma

Karol Baron

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p. 9-16

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ρ-Orthogonality and its preservation - revisited

Jacek Chmieliński ; Paweł Wójcik

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p. 17-30

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On conjugacy equation in dimension one

Krzysztof Ciepliński ; Zbigniew Leśniak

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p. 31-44

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On an elementary inclusion problem and generalized weighted quasi-arithmetic means

Zoltán Daróczy ; Zsolt Páles

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p. 45-54

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Convexity and almost convexity in groups

Witold Jarczyk

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p. 55-76

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Determinant criteria of solvability

V. S. Kalnitsky

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p. 77-86

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Refinement type equations: sources and results

Rafał Kapica ; Janusz Morawiec

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p. 87-110

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On the inverse stability of functional equations

Zenon Moszner

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p. 111-121

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A review of selected topics in majorization theory

Marek Niezgoda

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p. 123-154

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Addition theorems and related geometric problems of group representation theory

Ekaterina Shulman

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p. 155-172

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D'Alembert's functional equation on groups

Henrik Stetkær

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p. 173-191

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The Levi-Civita equation, vector modules and spectral synthesis

László Székelyhidi

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p. 193-206

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Generalized midconvexity

Jacek Tabor ; Józef Tabor ; Krzysztof Misztal

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p. 207-215

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