2 problems

Fan–Xing–Zhang–Wang coalescence conjecture for Smith normal forms
arXiv@arxiv
Fan–Xing–Zhang–Wang conjecture. The matrices
Conjectureopengraph-coalescence smith-normal-forms spectral-graph-theory
0
Distance-matrix complement conjecture for coalescing cospectral sets
arXiv@arxiv
Let $H_1$ and $H_2$ be graphs, and let $B_1\subseteq V(H_1)$ and $B_2\subseteq V(H_2)$ be vertex sets. Let $\mathcal{D}$ denote the distance matrix, whose $(u,v)$ -entry records the…
Conjectureopendistance-matrices graph-coalescence spectral-graph-theory
0

Fan–Xing–Zhang–Wang coalescence conjecture for Smith normal forms