Denis E. Videla

activity

20122026

most citedIntegral equienergetic non-isospectral unitary Cayley graphs

10 citations · 21 across the 14 of their papers we have counts for

collaborators

Showing 2020Show all

3 papers · 1 filter

math.CO2020

On regular graphs equienergetic with their complements

Ricardo A. Podestá, Denis E. Videla

We give necessary and sufficient conditions on the parameters of a regular graph $Γ$ (with or without loops) such that $E (Γ) = E (Γ)$ . We study complementary equienergetic c…

math.GM2020

Using digraphs to compute determinant, permanent and Drazin inverse of circulant matrices with two parameters

Andrés M. Encinas, Daniel A. Jaume, Cristian Panelo +1

This work presents closed formulas for determinant, permanent, inverse, and Drazin inverse of circulant matrices with two non-zero coefficients.

math.CO2020★ 10 cited

Integral equienergetic non-isospectral unitary Cayley graphs

Ricardo A. Podestá, Denis E. Videla

We prove that the Cayley graphs $X (G, S)$ and $X^{+} (G, S)$ are equienergetic for any abelian group $G$ and any symmetric subset $S$ . We then focus on the family of unitary Cayley grap…