Adam Hayes, Ph.D., CFA, is a financial writer with 15+ years Wall Street experience as a derivatives trader. Besides his extensive derivative trading expertise, Adam is an expert in economics and ...

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Cvetkovic D, Rowlinson P & Simic S (2001) Graphs with least eigenvalue - 2: The star complement technique. Journal of Algebraic Combinatorics, 14 (1), pp. 5-16. https ...

Abstract: The strong perfect graph theorem is the proof of the famous Berge’s conjecture that the graph is perfect if and only if it is free of odd holes and odd anti-holes. The conjecture was settled ...

The δ-complement graphs were introduced by Amrithalakshmi et al. in 2022. In their work, some interesting properties of the graphs such as δ-self-complementary, adjacency, and hamiltonicity were ...

Abstract: This paper focuses on the field of graph signal processing (GSP) and studies the node-varying graph filter (NV-GF) which has been proposed as a way to broaden the applicability of the ...

The mathematicians who toiled on the famous enigma also devised powerful forms of end-to-end encryption. By William J. Broad Defenses against digital snoopers keep getting stronger. Encryption is what ...

A sequence of non-negative integers d_i >= ... >= d_n can be represented as the degree sequence of a finite simple graph on n vertices if and only if d_i + ... + d_n ...