2 papers
math.GM2018
Calculus without Limit Theory
Jingzhong Zhang, Zengxiang Tong
This paper establishes calculus upon two physical facts: (1) any average velocity is always between two instantaneous velocities, and (2) the motion of an object is determined once…
math.AG2012
The expansion of real forms on the simplex and applications
Yong Yao, Jia Xu, Jingzhong Zhang
If n points B_1,---,B_n$ in the standard simplex Δ_n are affinely independent, then they can span an (n-1)-simplex denoted by Λ=Con(B_1,---,B_n). Here Λcorresponds to an n*n matrix…