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Integral Cayley graphs over a finite symmetric algebra
Speaker: Assoc. Prof. Nguyen Duy Tan (Hanoi University of Science and Technology)

Time: 9:30 -- 11: 00, February 19, 2025

Venue: Room 612, A6, Institute of Mathematics-VAST

Abstract: A graph is called integral if its eigenvalues are integers. We provide necessary and sufficient conditions for a Cayley graph over a finite symmetric algebra R to be integral. This generalizes the work of So who studies the case where R is the ring of integers modulo n. (Joint work with Tung T. Nguyen).

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