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math.CO2026
Nonexistence of Strongly Regular Graphs via Gegenbauer Positivity and SRG Counting
Zhen-Qi Liao, Jiaxin Wang, Wei-Hsuan Yu +1
This paper develops a natural extension of the multipoint spherical semidefinite method of Liao and Yu~\cite{LY}, studying the interaction between semidefinite programming and stro…
math.AG2026
On the structure and generic non-Cartesianity of polynomials in product spaces
Chun-Yen Shen, Tuyen Trung Truong, Wei-Hsuan Yu
We develop a general theory of Cartesian and non-Cartesian polynomials on products of complex spaces . We prove that, for an…