2 papers
math.AC2025
Computing Certificates of Strictly Positive Polynomials in Archimedean Quadratic Modules
Weifeng Shang, Jose Abel Castellanos Joo, Chenqi Mou +1
New results on computing certificates of strictly positive polynomials in Archimedean quadratic modules are presented. The results build upon (i) Averkov's method for generating a…
math.CO2024
Puzzle Ideals for Grassmannians
Chenqi Mou, Weifeng Shang
Puzzles are a versatile combinatorial tool to interpret the Littlewood-Richardson coefficients for Grassmannians. In this paper, we propose the concept of puzzle ideals whose varie…