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Iterated suspensions are coalgebras over the little disks operad
José M. Moreno-Fernández, Felix Wierstra
We study the Eckmann-Hilton dual of the little disks algebra structure on iterated loop spaces: With the right definitions, every -fold suspension is a coalgebra over the little…
math.AT2019
Formality criteria in terms of higher Whitehead brackets
Urtzi Buijs, José M. Moreno-Fernández
We provide two criteria for discarding the formality of a differential graded Lie algebra in terms of higher Whitehead brackets, which are the Lie analogue of the Massey products o…