Qi Liu

collaborators

3 papers

math.FA2026

A weighted Birkhoff orthogonal James-type constant

Junxiang Qi, Zhouping Yin, Qi Liu +1

Let $X$ be a real Banach space and $I^» \in [0, 1]$ . Motivated by orthogonal versions of the James constant, we introduce the weighted Birkhoff orthogonal James-type constant $$J_Î»^{\…

math.FA2026

Some inequalities and geometric constants in p-normed spaces

Zhiyao Fang, Qi Liu, Yuxin Wang +1

In this paper, we study some geometric constants in complete $p$ -normed spaces with $0 < p \leq 1$ . We introduce a new symmetric geometric constant associated with isosceles orthog…

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…