Inclusions in a Single Variable in Ultrametric Spaces and Hyers-Ulam Stability

by Magdalena Piszczek
Published 2013-01-01

Second Hukuhara derivative and cosine family of linear set-valued functions

by Magdalena Piszczek
Published 2006-06-01

On a multivalued second order differential problem with Jensen multifunctions

by Magdalena Piszczek
Published 2009-04-01

On a multivalued second order differential problem with Hukuhara derivative

by Magdalena Piszczek
Published 2008-01-01

Hyperstability of the Drygas Functional Equation

by Magdalena Piszczek, Joanna Szczawińska
Published 2013-01-01

On Approximately p-Wright Affine Functions in Ultrametric Spaces

by Anna Bahyrycz, Janusz Brzdęk, Magdalena Piszczek
Published 2013-01-01

Hyperstability of the Fréchet Equation and a Characterization of Inner Product Spaces

by Anna Bahyrycz, Janusz Brzdęk, Magdalena Piszczek, Justyna Sikorska
Published 2013-01-01