Applications of cohomology to set theory II: Todorčević trees

Autor:	Daniel Talayco
Rok vydání:	1996
Předmět:	Sheaf cohomology Discrete mathematics Class (set theory) Logic Group cohomology Hausdorff space Mathematics::General Topology Cohomology Mathematics::Logic ComputingMethodologies_SYMBOLICANDALGEBRAICMANIPULATION Equivariant cohomology Homological algebra Tree (set theory) Mathematics
Zdroj:	Annals of Pure and Applied Logic. 77:279-299
ISSN:	0168-0072
DOI:	10.1016/0168-0072(95)00024-0
Popis:	We explore an application of homological algebra by developing a cohomology theory for a class of Aronszajn trees. Properties of this class, called Todorcevic trees, are examined. The system is compared to that for Hausdorff gaps introduced in the author's previous work and general results about both tree and gap systems are also proven.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8100679afb7b8373e4045b2ba58f1a58 https://doi.org/10.1016/0168-0072(95)00024-0 Zobrazit plný text záznamu Full Text from ScienceDirect