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Quantum groups, skein theories, operadic and diagrammatic algebra, quantum field theory

4 votes
0 answers
191 views

Intuition for pointed Hopf algebras

I have familiarized myself with various definitions (one-dimensionality of simple left comodules, generated as an algebra by group-like and skew-like elements...) and examples of pointed Hopf algebras …
crackplot's user avatar
  • 151
1 vote
1 answer
587 views

Understanding Sweedler's notation for the structure map of a comodule

I was hoping someone might be able to shed some light on the choice of indices for expressing the coaction using Sweedler notation. For example, in the paper of Andruskiewitsch About finite-dimension …
crackplot's user avatar
  • 151