Vol 25/2009 no. 2

Cuprins: The degree of approximation by certain linear positive operators Some properties of the symbol algebras On the stability roughness of discrete dynamical systems in infinite-dimensional spaces Affine legendrians and co-legendrians A note on nonlinear...

Vol 25/2009 no. 1

Cuprins: Some characterizations of submaximality Counting maximal chains of subgroups of finite nilpotent groups A survey of different integer programming formulations of the generalized minimum spanning tree problem Statistical tests for linear and nonlinear...