This paper gives the Euler characteristic of 2-dimensional surfaces with cross caps and surfaces with boundaries.

  • 本文给出了带有交叉帽的二维曲面和带有边缘边的二维曲面的欧拉示性数.

  • 互联网摘选 2025-01-18 13:36:32

    • 相关例句
    精确
    • 模糊
    • 词首
    • 词尾
    • 词义
    • 例句