83 citations · 307 across the 21 of their papers we have counts for
4 papers · 1 filter
On a factorization of graded Hopf algebras using Lyndon words
M. Graña, I. Heckenberger
We find a generalization of the restricted PBW basis for pointed Hopf algebras over abelian groups constructed by Kharchenko. We obtain a factorization of the Hilbert series for a…
Decomposition of some pointed Hopf algebras given by the canonical Nakayama automorphism
M. Graña, J. A. Guccione, J. J. Guccione
Every finite dimensional Hopf algebra is a Frobenius algebra, with Frobenius homomorphism given by an integral. The Nakayama automorphism determined by it yields a decomposition wi…
Discrete Scale Invariance in Scale Free Graphs
Matías Graña, Juan Pablo Pinasco
In this work we introduce an energy function in order to study finite scale free graphs generated with different models. The energy distribution has a fractal pattern and presents…
Condition numbers and scale free graphs
Gabriel Acosta, Matías Graña, Juan Pablo Pinasco
In this work we study the condition number of the least square matrix corresponding to scale free networks. We compute a theoretical lower bound of the condition number which prove…