3 papers
math.CO2026
Albertson's Conjecture for Chromatic Numbers at Most 29
Sen Cao, Sanjit Singh Mehat
Albertson's conjecture asserts that every finite simple graph with satisfies . Building on Cranston's verification…
math.GM2026
Tensor constructions for Euler magic matrices and proper examples of orders 9, 27, 81 and 243
Sanjit Singh Mehat
An Euler magic matrix is an integer matrix satisfying together with two diagonal square-sum conditions; it is proper when its entry squares are pairwise di…
math.GM2026
A proper Euler magic matrix of order 6
Sanjit Singh Mehat
An Euler magic matrix is an integer matrix M with MM^t = gamma I for some gamma != 0, whose squared entries sum to gamma along both main diagonals; it is proper if its squared entr…