My Hanh Pham

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20242026

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math.CO2026

On graphs whose powers are well-covered

My Hanh Pham, Thanh Vu

In this paper, we investigate graphs with the property that all of their powers are well-covered. We obtain complete classifications for several graph classes, including chordal gr…

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.CO2024

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…

On graphs whose powers are well-covered

Contractible independence complexes of trees

Log-concavity of the independence polynomials of Wp​ graphs

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