Feynman diagrams and minimal models for operadic algebras
Feynman diagrams and minimal models for operadic algebras
复制标题
费曼图和歌剧代数的最小模型
DOI:
10.1112/jlms/jdp073
复制
发表时间:
2010
期刊:
影响因子:
--
通讯作者:
Chuang J
中科院分区:
文献类型:
--
作者:
Chuang J
We construct an explicit minimal model for an algebra over the cobar‐construction of a differential graded operad. The structure maps of this minimal model are expressed in terms of sums over decorated trees. We introduce the appropriate notion of a homotopy equivalence of operadic algebras and show that our minimal model is homotopy equivalent to the original algebra. All this generalizes and gives a conceptual explanation of well‐known results forA∞‐algebras. Furthermore, we show that these results carry over to the case of algebras over modular operads; the sums over trees get replaced by sums over general Feynman graphs. As a by‐product of our work we prove gauge‐independence of Kontsevich's ‘dual construction’ producing graph cohomology classes from contractible differential graded Frobenius algebras.
登录
查看更多内容
DOI:
10.4310/cntp.2007.v1.n4.a1
发表时间:
2007
期刊:
arXiv: Quantum Algebra
影响因子:
--
作者:
J. Chuang;A. Lazarev
通讯作者:
A. Lazarev
影响因子:
0.7
作者:
Hamilton A
通讯作者:
Hamilton A
影响因子:
0.8
作者:
D. W. Barnes;L. Lambe
通讯作者:
L. Lambe
影响因子:
0.8
作者:
Martin Markl;Sergei Merkulov;Sergei Shadrin
通讯作者:
Sergei Shadrin
影响因子:
2.4
作者:
P. Aspinwall;S. Katz
通讯作者:
S. Katz