Infinite compact sets of idempotents in $$\beta S$$ β S
Crossref DOI link: https://doi.org/10.1007/s00233-016-9813-x
Published Online: 2016-07-06
Published Print: 2017-10
Update policy: https://doi.org/10.1007/springer_crossmark_policy
Hindman, Neil
Strauss, Dona
License valid from 2016-07-06