Author Details

Li, Yongjin, China

  • Vol 39, No 34 (2025) - Dragan Djordjevic - Functional analysis, Operator theory
    Another generalized angle related to norm derivatives in Banach spaces
    Abstract
  • Vol 38, No 32 (2024) - Dragan Djordjevic - Functional analysis, Operator theory
    On a parallelism related to the g-angle
    Abstract