2026-04-14T04:20:50Zhttps://recercat.cat/oai/request

oai:recercat.cat:2445/1955202025-12-05T09:54:17Zcom_2072_1057col_2072_478917col_2072_478920

00925njm 22002777a 4500 dc Cirici, Joana author Horel, Geoffroy author 2023-03-17T08:48:57Z 2023-10-27T05:10:30Z 2022-10-27 2023-03-17T08:48:57Z We use Galois group actions on étale cohomology to prove results of formality for dg-operads and dg-algebras with torsion coefficients. Our theory applies, among other related objects, to the dg-operad of singular chains of the operad of little disks and to the dg-algebra of singular cochains of the configuration space of points in the complex space. The formality that we obtain is only up to a certain degree, which depends on the cardinality of the field of coefficients. Teoria de l'homotopia Topologia algebraica Anells associatius Homotopy theory Algebraic topology Associative rings Étale cohomology, purity and formality with torsion coefficients