A. Roy

collaborators

6 papers

math.AC2025

Equality of ordinary and symbolic powers and the Conforti-Cornuéjols conjecture for $(n - 2)$ -uniform clutters

Amit Roy, Kamalesh Saha

Let $I$ be an equigenerated squarefree monomial ideal in the polynomial ring $K [x_{1}, \dots, x_{n}]$ , and let $H$ be a uniform clutter on the vertex set $\{x_1,\ldot…

math.AC2025

Admissible set and squarefree-power-like function with applications to squarefree symbolic powers

Trung Chau, Kanoy Kumar Das, Amit Roy +1

We introduce the abstract notion of squarefree-power-like functions, which unify the sequences of squarefree ordinary and symbolic powers of squarefree monomial ideals. By employin…

math.CO2025

The complex of $r$ -co-connected subgraphs, chordality and Fröberg's theorem

Priyavrat Deshpande, Amit Roy, Rutuja Sawant

We introduce a new family of pure simplicial complexes, called the $r$ -co-connected complex of $G$ with respect to $A$ , $Σ_{r} (A, G)$ , where $r \geq 1$ is a natural number, $G$ is a si…

math.AC2025

On the homological shifts of cover ideals of Cohen-Macaulay graphs

Amit Roy, Kamalesh Saha

For a non-negative integer $k$ , let $HS_{k} (J (G))$ denote the $k^{th}$ homological shift ideal of the vertex cover ideal $J (G)$ of a graph $G$ . For each $k \geq 2$ ,…

math.AC2025

Admissible matchings and the Castelnuovo-Mumford regularity of square-free powers

Trung Chau, Kanoy Kumar Das, Amit Roy +1

Let $I$ be any square-free monomial ideal, and $H_{I}$ denote the hypergraph associated with $I$ . Refining the concept of $k$ -admissible matching of a graph defined by Erey…

math.CO2025

Stanley-Reisner ideals of higher independence complexes of chordal graphs

Kanoy Kumar Das, Amit Roy, Kamalesh Saha

For $t \geq 2$ , the $t$ -independence complex $Ind_{t} (G)$ of a graph $G$ is the collection of all $A \subseteq V (G)$ such that each connected component of the induced subgraph…

Equality of ordinary and symbolic powers and the Conforti-Cornuéjols conjecture for (n−2)-uniform clutters

Admissible set and squarefree-power-like function with applications to squarefree symbolic powers

The complex of r-co-connected subgraphs, chordality and Fröberg's theorem

On the homological shifts of cover ideals of Cohen-Macaulay graphs

Admissible matchings and the Castelnuovo-Mumford regularity of square-free powers

Stanley-Reisner ideals of higher independence complexes of chordal graphs

Equality of ordinary and symbolic powers and the Conforti-Cornuéjols conjecture for $(n - 2)$ -uniform clutters

The complex of $r$ -co-connected subgraphs, chordality and Fröberg's theorem