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Combinatorial Hopf Algebras, Twisted Structures, and Species

Algebra and Applications, 2021
Various definitions of combinatorial Hopf algebras have been proposed in the literature but no one has been adopted uniformly. Here, we use the name to denote Hopf algebraic structures associated to sets of objects related naturally to a countable alphabet.
P. Cartier, F. Patras
semanticscholar   +2 more sources

Noncommutative symmetric functions and combinatorial Hopf algebras

2011
We present on a few examples a class of algebras which are increasingly popular in Combinatorics, and tend to permeate other fields as well. In particular, some of these algebras have connections with mould calculus and resurgence theory. They can be approached in many different ways.
openaire   +1 more source

Fractional-order bidirectional associate memory (BAM) neural networks with multiple delays: The case of Hopf bifurcation

Mathematics and Computers in Simulation, 2021
Changjin Xu, Maoxin Liao, Peiluan Li
exaly  

Stability and Hopf Bifurcation of Fractional-Order Complex-Valued Single Neuron Model with Time Delay

International Journal of Bifurcation and Chaos in Applied Sciences and Engineering, 2017
Zhen Wang, Yuxia Li, Xia Huang
exaly  

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