Vol 31 (2017)

Some problems in the Calculus of Variations

Arrigo Cellina

5-55

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On orthogonally additive functions with big graphs

Karol Baron

57-62

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Outer measures on a commutative ring induced by measures on its spectrum

Dariusz Dudzik, Marcin Skrzyński

63-70

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Multipliers of uniform topological algebras

Mohammed El Azhari

71-81

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Numerical solution of time fractional Schrödinger equation by using quadratic B-spline finite elements

Alaattin Esen, Orkun Tasbozan

83-98

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Complementary results to Heuvers’s characterization of logarithmic functions

Martin Himmel

99-106

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A generalization of m-convexity and a sandwich theorem

Teodoro Lara, Janusz Matkowski, Nelson Merentes, Roy Quintero, Małgorzata Wróbel

107-126

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Invariant means on Banach spaces

Radosław Łukasik

127-140

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Lie derivations on trivial extension algebras

Amir Hosein Mokhtari, Fahimeh Moafian, Hamid Reza Ebrahimi Vishki

141-153

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On stability of the Cauchy functional equation in groupoids

Imke Toborg, Peter Volkmann

155-164

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A simple proof of the Polar Decomposition Theorem

Paweł Wójcik

165-171

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Fixed point results satisfying rational type contractive conditions in complex valued metric spaces – revisited

Mian Bahadur Zada, Muhammad Sarwar

173-185

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Report of Meeting. The Seventeenth Katowice–Debrecen Winter Seminar Zakopane (Poland) , February 1–4, 2017

187-204

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Vol 31 (2017):