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On weight complexes, pure functors, and detecting weights. / Bondarko, Mikhail V.
в: Journal of Algebra, Том 574, 15.05.2021, стр. 617-668.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - On weight complexes, pure functors, and detecting weights
AU - Bondarko, Mikhail V.
N1 - Funding Information: Sections 1?4 were obtained under support of the Russian Science Foundation grant no. 16-11-00073. The work on Appendices A and B of the paper were supported by the Russian Science Foundation grant no. 20-41-04401. Publisher Copyright: © 2021 Elsevier Inc. Copyright: Copyright 2021 Elsevier B.V., All rights reserved.
PY - 2021/5/15
Y1 - 2021/5/15
N2 - This paper is dedicated to the study of weight complex functors (defined on triangulated categories endowed with weight structures) and their applications. We introduce pure (co)homological functors that “ignore all non-zero weights”; these have a nice description in terms of weight complexes. An important example is the weight structure wG generated by the orbit category in the G-equivariant stable homotopy category SH(G); the corresponding pure cohomological functors into abelian groups are the Bredon cohomology associated to Mackey functors ones. Pure functors related to “motivic” weight structures are also quite useful. Our results also give some (more) new weight structures. Moreover, we prove that certain exact functors are conservative and “detect weights”.
AB - This paper is dedicated to the study of weight complex functors (defined on triangulated categories endowed with weight structures) and their applications. We introduce pure (co)homological functors that “ignore all non-zero weights”; these have a nice description in terms of weight complexes. An important example is the weight structure wG generated by the orbit category in the G-equivariant stable homotopy category SH(G); the corresponding pure cohomological functors into abelian groups are the Bredon cohomology associated to Mackey functors ones. Pure functors related to “motivic” weight structures are also quite useful. Our results also give some (more) new weight structures. Moreover, we prove that certain exact functors are conservative and “detect weights”.
KW - Bredon cohomology
KW - Conservativity
KW - Equivariant stable homotopy category
KW - Mackey functors
KW - Motives
KW - Pure functors
KW - Triangulated category
KW - Weight complex
KW - Weight structure
KW - Weight-exact functor
UR - http://www.scopus.com/inward/record.url?scp=85100908411&partnerID=8YFLogxK
U2 - 10.1016/j.jalgebra.2021.02.005
DO - 10.1016/j.jalgebra.2021.02.005
M3 - Article
AN - SCOPUS:85100908411
VL - 574
SP - 617
EP - 668
JO - Journal of Algebra
JF - Journal of Algebra
SN - 0021-8693
ER -
ID: 75128889