ARRIGO CELLINA:
Some problems in
the Calculus of Variations


5 

KAROL BARON:
On
orthogonally additive functions with big graphs 

57 

DARIUSZ DUDZIK, MARCIN SKRZYŃSKI:
Outer
measures on a commutative ring induced by measures on its spectrum


63 

MOHAMMED EL AZHARI:
Multipliers
of uniform topological algebras 

71 

ALAATTIN ESEN, ORKUN TASBOZAN:
Numerical
solution of time fractional Schrödinger equation by using quadratic
Bspline finite elements


83 

MARTIN HIMMEL:
Complementary
results to Heuvers’s characterization
of logarithmic functions 

99 

TEODORO LARA, JANUSZ MATKOWSKI, NELSON MERENTES, ROY
QUINTERO, MAŁGORZATA WRÓBEL:
A
generalization of mconvexity
and a sandwich theorem 

107 

RADOSŁAW ŁUKASIK:
Invariant
means on Banach spaces 

127 

AMIR HOSEIN MOKHTARI, FAHIMEH MOAFIAN, HAMID REZA
EBRAHIMI VISHKI:
Lie
derivations on trivial extension algebras 

141 

IMKE TOBORG, PETER VOLKMANN:
On
stability of the Cauchy functional equation in groupoids 

155 

PAWEŁ WÓJCIK:
A simple
proof of the Polar Decomposition Theorem 

165 

MIAN BAHADUR ZADA, MUHAMMAD SARWAR:
Fixed point
results
satisfying rational type contractive conditions in complex valued
metric
spaces – revisited


173 

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

187

