Vol 23 (2009)

Vol 23 (2009):

Annual lectures dedicated to the memory of Professor Andrzej Lasota

Roman Ger

7-8

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Professor Andrzej Lasota (1932–2006)

Ryszard Rudnicki

9-10

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Exploring the world with mathematics

Michael C. Mackey

11-42

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Well-posedness of the fixed point problem for certain asymptotically regular mappings

Mohamed Akkouchi

43-52

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Jensen convex functions bounded above on nonzero Christensen measurable sets

Eliza Jabłońska

53-55

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On a Jensen–Hosszú equation I

Zygfryd Kominek

57-60

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Existence of positive periodic solutions of some differential equations of order n (n≥2)

Jan Ligęza

61-81

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The group of balanced automorphisms of a spherically homogeneous rooted tree

Adam Woryna

83-101

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Report of Meeting: The Ninth Katowice–Debrecen Winter Seminar on Functional Equations and Inequalities, Będlewo (Poland), February 4–7, 2009

103-117

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