Derived A∞–algebras were developed recently by Sagave. Their advantage over classical A∞–algebras is that no projectivity assumptions are needed to study minimal models of differential graded algebras. We explain how derived A∞–algebras can be viewed as algebras over an operad. More specifically, we describe how this operad arises as a resolution of the operad dAs encoding bidgas, ie bicomplexes with an associative multiplication. This generalises the established result describing the operad A∞ as a resolution of the operad As encoding associative algebras. We further show that Sagave’s definition of morphisms agrees with the infinity-morphisms of dA∞–algebras arising from operadic machinery. We also study the operadic homology of derived A∞–algebras.
Keywords: operads, $A_{\infty}$–algebras, Koszul duality
Livernet, Muriel  1 ; Roitzheim, Constanze  2 ; Whitehouse, Sarah  3
@article{10_2140_agt_2013_13_409,
author = {Livernet, Muriel and Roitzheim, Constanze and Whitehouse, Sarah},
title = {Derived {A\ensuremath{\infty}{\textendash}algebras} in an operadic context},
journal = {Algebraic and Geometric Topology},
pages = {409--440},
year = {2013},
volume = {13},
number = {1},
doi = {10.2140/agt.2013.13.409},
url = {http://geodesic.mathdoc.fr/articles/10.2140/agt.2013.13.409/}
}
TY - JOUR AU - Livernet, Muriel AU - Roitzheim, Constanze AU - Whitehouse, Sarah TI - Derived A∞–algebras in an operadic context JO - Algebraic and Geometric Topology PY - 2013 SP - 409 EP - 440 VL - 13 IS - 1 UR - http://geodesic.mathdoc.fr/articles/10.2140/agt.2013.13.409/ DO - 10.2140/agt.2013.13.409 ID - 10_2140_agt_2013_13_409 ER -
%0 Journal Article %A Livernet, Muriel %A Roitzheim, Constanze %A Whitehouse, Sarah %T Derived A∞–algebras in an operadic context %J Algebraic and Geometric Topology %D 2013 %P 409-440 %V 13 %N 1 %U http://geodesic.mathdoc.fr/articles/10.2140/agt.2013.13.409/ %R 10.2140/agt.2013.13.409 %F 10_2140_agt_2013_13_409
Livernet, Muriel; Roitzheim, Constanze; Whitehouse, Sarah. Derived A∞–algebras in an operadic context. Algebraic and Geometric Topology, Tome 13 (2013) no. 1, pp. 409-440. doi: 10.2140/agt.2013.13.409
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