Research output: Contribution to journal › Article › peer-review
On the path homology of Cayley digraphs and covering digraphs. / Di, S.; Ivanov, S.O.; Mukoseev, L.; Zhang, M.
In: Journal of Algebra, Vol. 653, 01.09.2024, p. 156-199.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - On the path homology of Cayley digraphs and covering digraphs
AU - Di, S.
AU - Ivanov, S.O.
AU - Mukoseev, L.
AU - Zhang, M.
N1 - Цитирования:1 Export Date: 19 October 2024 CODEN: JALGA Адрес для корреспонденции: Ivanov, S.O.; Beijing Institute of Mathematical Sciences and Applications (BIMSA)China; эл. почта: ivanov.s.o.1986@gmail.com Текст о финансировании 1: The work is supported by Beijing Institute of Mathematical Sciences and Applications.
PY - 2024/9/1
Y1 - 2024/9/1
N2 - We develop a theory of covering digraphs, similar to the theory of covering spaces. By applying this theory to Cayley digraphs, we build a “bridge” between GLMY-theory and group homology theory, which helps to reduce path homology calculations to group homology computations. We show some cases where this approach allows us to fully express path homology in terms of group homology. To illustrate this method, we provide a path homology computation for the Cayley digraph of the additive group of rational numbers with a generating set consisting of inverses to factorials. The main tool in our work is a filtered simplicial set associated with a digraph, which we call the filtered nerve of a digraph. © 2024 Elsevier Inc.
AB - We develop a theory of covering digraphs, similar to the theory of covering spaces. By applying this theory to Cayley digraphs, we build a “bridge” between GLMY-theory and group homology theory, which helps to reduce path homology calculations to group homology computations. We show some cases where this approach allows us to fully express path homology in terms of group homology. To illustrate this method, we provide a path homology computation for the Cayley digraph of the additive group of rational numbers with a generating set consisting of inverses to factorials. The main tool in our work is a filtered simplicial set associated with a digraph, which we call the filtered nerve of a digraph. © 2024 Elsevier Inc.
KW - Cayley graph
KW - Covering
KW - Path homology
KW - Spectral sequence
UR - https://www.mendeley.com/catalogue/119eb335-f550-3655-b212-560b475f635d/
U2 - 10.1016/j.jalgebra.2024.05.005
DO - 10.1016/j.jalgebra.2024.05.005
M3 - статья
VL - 653
SP - 156
EP - 199
JO - Journal of Algebra
JF - Journal of Algebra
SN - 0021-8693
ER -
ID: 126391220