The goal of this paper is to set up an obstruction theory in the context of algebras over an operad and in the framework of differential graded modules over a field. Precisely, the problem we consider is the following: Suppose given two algebras and over an operad and an algebra morphism from to . Can we realize this morphism as a morphism of -algebras from to in the homotopy category? Also, if the realization exists, is it unique in the homotopy category?
We identify obstruction cocycles for this problem, and notice that they live in the first two groups of operadic -cohomology.
Mots clés : Obstruction theory, algebras over operads
Eric Hoffbeck 1
@article{AMBP_2016__23_1_75_0, author = {Eric Hoffbeck}, title = {Obstruction theory for algebras over an operad}, journal = {Annales math\'ematiques Blaise Pascal}, pages = {75--107}, publisher = {Annales math\'ematiques Blaise Pascal}, volume = {23}, number = {1}, year = {2016}, doi = {10.5802/ambp.355}, language = {en}, url = {https://ambp.centre-mersenne.org/articles/10.5802/ambp.355/} }
TY - JOUR AU - Eric Hoffbeck TI - Obstruction theory for algebras over an operad JO - Annales mathématiques Blaise Pascal PY - 2016 SP - 75 EP - 107 VL - 23 IS - 1 PB - Annales mathématiques Blaise Pascal UR - https://ambp.centre-mersenne.org/articles/10.5802/ambp.355/ DO - 10.5802/ambp.355 LA - en ID - AMBP_2016__23_1_75_0 ER -
%0 Journal Article %A Eric Hoffbeck %T Obstruction theory for algebras over an operad %J Annales mathématiques Blaise Pascal %D 2016 %P 75-107 %V 23 %N 1 %I Annales mathématiques Blaise Pascal %U https://ambp.centre-mersenne.org/articles/10.5802/ambp.355/ %R 10.5802/ambp.355 %G en %F AMBP_2016__23_1_75_0
Eric Hoffbeck. Obstruction theory for algebras over an operad. Annales mathématiques Blaise Pascal, Tome 23 (2016) no. 1, pp. 75-107. doi : 10.5802/ambp.355. https://ambp.centre-mersenne.org/articles/10.5802/ambp.355/
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