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math.RA2023
The unitary Cayley graph of a semiring
David Dolžan
We study the unitary Cayley graph of a matrix semiring. We find bounds for its diameter, clique number and independence number, and determine its girth. We also find the relationsh…
math.CO2023
The Wiener index and the Wiener Complexity of the zero-divisor graph of a ring
David Dolžan
We calculate the Wiener index of the zero-divisor graph of a finite semisimple ring. We also calculate the Wiener complexity of the zero-divisor graph of a finite simple ring and f…