Книга: Spectral sequence: Stellar Classification, Mathematics, Homological Algebra, Algebraic Topology, Group Cohomology, Homotopy, Leray Spectral Sequence, Chain Complex, Abelian Category

High Quality Content by WIKIPEDIA articles! In the area of mathematics known as homological algebra, especially in algebraic topology and group cohomology, a spectral sequence is a means of computing homology groups by taking successive approximations. Spectral sequences are a generalization of exact sequences, and since their introduction by Jean Leray in 1946, they have become an important research tool, particularly in homotopy theory. However, they have a reputation for being abstruse and difficult to comprehend.