My Hanh Pham

activity

20242026

collaborators

4 papers

math.CO2026

Contractible independence complexes of trees

My Hanh Pham, Thanh Vu

We show that the independence complex of a tree is contractible if and only if it can be reduced to a path $ P_n $ with $ n \equiv 1 \pmod{3} $ by a sequence of truncation move…

math.CO2025

Log-concavity of the independence polynomials of $W_{p}$ graphs

Do Trong Hoang, Vadim E. Levit, Eugen Mandrescu +1

Let $G$ be a graph of order $n$ . For a positive integer $p$ , $G$ is said to be a $W_{p}$ graph if $n \geq p$ and every $p$ pairwise disjoint independent sets of $G$ are con…

math.AC2025

Regularity of edge ideals of powers of graphs

My Hanh Pham, Thanh Vu

We prove that the regularity of edge ideals of powers of forests is weakly decreasing. We then compute the regularity of edge ideals of powers of cycles.

math.AC2024

Regularity of Powers and symbolic powers of edge ideals of cubic circulant graphs

Nguyen Thu Hang, My Hanh Pham, Thanh Vu

We compute the regularity of powers and symbolic powers of edge ideals of all cubic circulant graphs. In particular, we establish Conjecture of Minh for cubic circulant graphs.

Contractible independence complexes of trees

Log-concavity of the independence polynomials of Wp​ graphs

Regularity of edge ideals of powers of graphs

Regularity of Powers and symbolic powers of edge ideals of cubic circulant graphs

Log-concavity of the independence polynomials of $W_{p}$ graphs