Maseeh Ghodsi

collaborators

3 papers

math.CO2026

Nonexistence of a Leech Tree of Order 18: A Computer-Assisted Proof

Maseeh Ghodsi

A Leech tree of order $n$ is a tree with positive integral edge weights whose $n (n - 1) /2$ pairwise weighted distances are precisely $1, 2, \dots, n (n - 1) /2$ . This paper gives a compute…

math.CO2026

A finite cover for coefficient positivity of stretched Littlewood-Richardson polynomials in the seven-row, size-thirty box

Maseeh Ghodsi

We give a finite cover argument for nonnegativity of the ordinary monomial coefficients of every stretched Littlewood-Richardson polynomial with partition lengths at most seven and…

math.CO2026

An Overlap Construction for Relative Linear Extension Ratios

Maseeh Ghodsi

Chan and Pak introduced the relative linear extension ratio $ρ (P, x) = e (P) / e (P - x)$ , where $e (P)$ is the number of linear extensions of a finite poset $P$ , and let $ν (c, d)$ be the lea…