Canonical: https://knowlpedia.com/algebra-coalgebras/

# Coalgebras

Coalgebras, bialgebras, and Hopf algebras.

This section collects definitions of algebraic structures with a comultiplication.

## Definitions

- [Coalgebra](https://knowlpedia.com/algebra-coalgebras/coalgebra/)
- [Bialgebra](https://knowlpedia.com/algebra-coalgebras/bialgebra/)
- [Hopf algebra](https://knowlpedia.com/algebra-coalgebras/hopf-algebra/)