4 citations · 4 across the 2 of their papers we have counts for
3 papers
Computing sandpile configurations using integer linear programming
Carlos A. Alfaro, Carlos E. Valencia, Marcos C. Vargas
It is well known that recurrent sandpile configurations can be characterized as the optimal solution of certain optimization problems. In this article, we present two new integer l…
Eigenvalues, Smith normal form and determinantal ideals
Aida Abiad, Carlos A. Alfaro, Kristin Heysse +1
Determinantal ideals of graphs generalize, among others, the spectrum and the Smith normal form (SNF) of integer matrices associated to graphs. In this work we investigate the rela…
The equivalence between two classic algorithms for the assignment problem
Carlos A. Alfaro, Sergio L. Perez, Carlos E. Valencia +1
We give a detailed review of two algorithms that solve the minimization case of the assignment problem. The Bertsekas' auction algorithm and the Goldberg & Kennedy algorithm. We wi…