Xin Wang

activity

20242026

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2 papers · 1 filter

math.RA2025

Nakayama automorphisms of graded double Ore extensions of Koszul Artin-Schelter regular algebras with nontrivial skew derivations

Yan Cao, Yuan Shen, Xin Wang

Let $A$ be a Koszul Artin-Schelter regular algebra and $B = A_{P} [y_{1}, y_{2}; ς, ν]$ be a graded double Ore extension of $A$ where $ς : A \to M_{2 \times 2} (A)$ is a graded algebra homomorphism…

math.CO2025

New results of Bollobás-type theorem for affine subspaces and projective subspaces

Shuhui Yu, Xin Wang

Bollobás-type theorem has received a lot of attention due to its application in graph theory. In 2015, Gábor Heged{ü}s gave an upper bound of bollobás-type affine subspace families…