摘要: A new concept of the X-M-PN space is introduced, and the acute angle principle in the X-M-PN space is proved. Meanwhile, some new results are obtained.
中图分类号:
朱传喜. SOME THEOREMS IN THE X-M-PN SPACE[J]. Applied Mathematics and Mechanics (English Edition), 2000, 21(2): 181-184.
Zhu Chuanxi . SOME THEOREMS IN THE X-M-PN SPACE[J]. Applied Mathematics and Mechanics (English Edition), 2000, 21(2): 181-184.