collaborators

14 papers

cs.DS2026

Unlocking Fractional Moments in Delphic Set Streams

Aranya Kumar Bal, Sourav Chakraborty, Arijit Ghosh +1

We consider estimation of non-integer frequency moments and related Bernstein-type statistics in the Delphic set stream model under a bounded-frequency assumption: every univ…

math.CO2026

Asymptotic Uniformity of Permanents of Random Matrices over Finite Fields of Odd Characteristic

Shuang Sun, Yuyao Yang, Jiasheng Zeng

Let be an odd prime power, and let be a random matrix whose entries are independent and uniformly distributed on . The per…

math.CO2026

Compactness of abundance in asymmetric hypergraph removal lemmas

Shuang Sun, Yan Wang, Yuyao Yang +1

Fix an integer and a finite simple -uniform hypergraph with at least one edge and no isolated vertices. An -vertex -graph is -far from being -free if a…

math.CO2026

A Single-Exponential Erdős--Hajnal Bound for Graphs of Bounded VC-Dimension

Shuang Sun, Yan Wang, Jiasheng Zeng

A homogeneous set in a graph is a clique or a stable set. The Erdős--Hajnal conjecture states that, for every graph , there exists such that every -free graph on v…

math.CO2026

Finite-Kernel Extremizers in Sparse Extremal Graph Counting

Jiasheng Zeng

We develop a finite-kernel framework for sparse extremal graph counting. The problems considered here ask for the maximum number of copies or homomorphisms of a fixed graph under s…

math.CO2026

Proofs of Two Conjectures of Alon on Subgraph Counts

Peiru Kuang, Shuang Sun, Yan Wang +1

All graphs considered are finite with no isolated vertices. Let be the maximum number of subgraphs of a graph isomorphic to , taken over all graphs with edg…