Minimal least eigenvalue of connected graphs of order n and size m = n + k (5 ⩽ k ⩽ 8)
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DOI: 10.1007/s11464-019-0805-5
Abstract: The least eigenvalue of a connected graph is the least eigenvalue of its adjacency matrix. We characterize the connected graphs of order n and size n + k (5 ⩽ k ⩽ 8 and n… read more here.
Keywords: least eigenvalue; eigenvalue connected; minimal least; graphs order ... See more keywords
On the least eigenvalue of A-matrix of graphs
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DOI: 10.1016/j.laa.2019.10.025
Abstract: Abstract Let G be a graph of order n with m edges and chromatic number χ. Let A ( G ) be the adjacency matrix and D ( G ) be the diagonal matrix of… read more here.
Keywords: least eigenvalue; eigenvalue matrix; matrix; problem ... See more keywords