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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★ 2 cited
2-switch: transition and stability on graphs and forests
Daniel A. Jaume, Adrián Pastine, Victor Nicolas Schvöllner
Given any two forests with the same degree sequence, we show in an algorithmic way that one can be transformed into the other by a sequence of 2-switches in such a way that all the…