MathOverflow is a question and answer site for professional mathematicians. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top


I have two questions concerning the coproduct of weak bialgebras. First, I would like to know if there is a proof of the existence of the coproduct in the category of weak bialgebras?

Second, (assuming the answer to the first question is yes) do we actually know how to construct it? For example, something similar to this construction (Pareigis, p.57) for bialgebras?

Thanks, Steve

share|cite|improve this question

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Browse other questions tagged or ask your own question.