3 papers
math.FA2025
Novel constants based on the generalization of Von Neumann-Jordan constant
Yuxin Wang, Qi Liu, Qian Li +4
We introduce a new geometric constant based on a generalization of the parallelogram law, and study its properties as well as some relationships with other well-known geometric con…
math.FA2025
The skew James type constant in Banach spaces
Zhiyong Rao, Qi Liu, Qiong Wu +2
In the past, Takahashi has introduced the James type constants . Building upon this foundation, we introduce an innovative skew James type constan…
math.FA2025
Symmetric form geometric constant related to isosceles orthogonality in Banach spaces
Qichuan Ni, Qi Liu, Yuxin Wang +2
In this article, we introduce a novel geometric constant , which provides an equivalent definition of the von Neumann-Jordan constant from an orthogonal perspective. First,…