Ortho-projective widths of classes $B_{p,\theta}^\Omega$ of periodic functions of many variables in the space $L_q$

Abstract

Obtained here are the exact order estimates of orthoprojective widths of the classes $B_{p,\theta}^\Omega$ of periodic functions of many variables in the space $L_q$ for ${1\leq p< q \leq \infty}$