Planar non-formality of the little discs operad in characteristic two-Reference-Cited by-同舟云学术

Planar non-formality of the little discs operad in characteristic two

Published:2018-12-04 Issue:2 Volume:70 Page:689-701
ISSN:0033-5606
Container-title:The Quarterly Journal of Mathematics
language:en
Short-container-title:

Author:

Salvatore Paolo¹

Affiliation:

1. Dipartimento di Matematica, Università di Roma Tor Vergata, Via della Ricerca Scientifica, Roma, Italy

Abstract

Abstract We show that the little discs operad D2 is not formal over F2 as a planar (or non-symmetric) operad. We compute explicitly the homological obstruction using as chain model the cells of the spineless cacti operad.

Publisher

Oxford University Press (OUP)

Subject

General Mathematics

Link

http://academic.oup.com/qjmath/article-pdf/70/2/689/28937480/hay063.pdf

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