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math.CO2023
Betti Numbers of Prodsimplicial Complexes for Directed Graphs with Applications to Word Reductions
Lina Fajardo Gómez, Margherita Maria Ferrari, Nataša Jonoska +1
We propose custom made cell complexes, in particular prodsimplicial complexes, in order to analyze data consisting of directed graphs. These are constructed by attaching cells that…
math.CO2022
On non-isomorphic biminimal pots realizing the cube
M. M. Ferrari, A. Pasotti, T. Traetta
In this paper, we disprove a conjecture recently proposed in [L. Almodovar et al., arXiv:2108.00035] on the non-existence of biminimal pots realizing the cube, namely pots with the…
math.CO2018
Insertions Yielding Equivalent Double Occurrence Words
Daniel A. Cruz, Margherita Maria Ferrari, Natasa Jonoska +2
A double occurrence word (DOW) is a word in which every symbol appears exactly twice; two DOWs are equivalent if one is a symbol-to-symbol image of the other. We consider the so ca…