The author develops the limit relations between the errors of polynomial approximation in weighted metrics and apply them to various problems in approximation t

The author develops the limit relations between the errors of polynomial approximation in weighted metrics and apply them to various problems in approximation t

The author proposes a general mechanism by which strange non-chaotic attractors (SNA) are created during the collision of invariant curves in quasiperiodically

The work treats dynamical systems given by ordinary differential equations in the form $\frac{dX^\varepsilon(t)}{dt}=\varepsilon B(X^\varepsilon(t),Y^\varepsilo

The authors study highest weight representations of shifted Yangians over an algebraically closed field of characteristic $0$. In particular, they classify the