Blogs about: Homological Algebra
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Nicolas Bourbaki Junior on Homological Algebra
The first time I experienced derealisation was the most frightened I have ever been in my life. It happened when I was 9 after reading homological algebra book. I was fine at first; I remember laughin… more →
Nicolas Bourbaki Junior
Semi-abelian categories
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Andreas Holmstrom wrote 1 month ago: The usual setting for doing homological algebra is abelian categories. However, many of the things o … more →
Derived Functors
shallow33 wrote 1 month ago: While studying commutative algebra and module theory, you’ll eventually be introduced to proje … more →
A hunka hunka burnin' knot homology
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Ben Webster wrote 2 months ago: One of the conundra of mathematics in the age of the internet is when to start talking about your re … more →
The Witt group, or the cohomology of the periodic table of n-categories
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Noah Snyder wrote 8 months ago: A very popular topic at the Modular Categories conference was the a generalization of the Witt group … more →
Hall algebras and Donaldson-Thomas invariants I
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Joel Kamnitzer wrote 8 months ago: I would like to tell you about recent work of Dominic Joyce and others (Bridgeland, Kontsevich-Soibe … more →
Monads in mathematics 4 : the bar and cobar constructions
remyoudompheng wrote 9 months ago: The use of monads and comonads in homological algebra is as old as the theory: Godement’s stan … more →
Boij–Söderberg theory I: preliminaries
Steven Sam wrote 9 months ago: I wanted to say something about Boij–Söderberg theory. But before I can even explain what that means … more →
Ten constructions of the cohomology of varieties
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remyoudompheng wrote 9 months ago: When talking about “the” cohomology of mathematical objects, we do not always explicitly … more →
Nicolas Bourbaki Junior on Homological Algebra
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Nicolas Bourbaki Junior wrote 10 months ago: The first time I experienced derealisation was the most frightened I have ever been in my life. It h … more →
Fucking Concrete Contemporary Abstract Algebra Introduction
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Nicolas Bourbaki Junior wrote 10 months ago: People are always asking me why I’ve written Fuckin’ Concrete Contemporary Abstract Alge … more →
Nicolas Bourbaki Junior - On Homotopy Theory
Nicolas Bourbaki Junior wrote 10 months ago: Thus once you find fuckin‘ out what is causing the homotopy, it is no longer a homotopy, but it is a … more →
Nicolas Bourbaki Junior - On Homological Algebra
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Nicolas Bourbaki Junior wrote 11 months ago: Let me fuckin’ remind you that freaky homological algebra is an unfucked abstract algebra concerned … more →
Extensions of sheaves and the local-global spectral sequence
remyoudompheng wrote 11 months ago: GIven a topological space , algebraic topologists would sometimes be interested in sheaves over this … more →
Extensions and homological algebra
remyoudompheng wrote 11 months ago: If you ever followed a course in algebra, you may have heard about extensions of “things … more →
Wood, glue, and the Octahedral Axiom
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Alexander Ellis wrote 11 months ago: Arts and crafts and mathematics have met before. For instance, mathematical knitting isn’t new … more →
What is cohomology?
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Andreas Holmstrom wrote 12 months ago: Cohomology (or homology) means different things to different people. The common theme of all notions … more →
Shoulda Series 2: Resolving Ext
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Alexander Ellis wrote 1 year ago: (Realistically, this post assumes familiarity with derived functors, chain complexes, and their homo … more →
Đại số đồng điều
Đặng Tuấn Hiệp wrote 1 year ago: Đây là bài tiểu luận của Hiệp môn Đại số đồng điều của TS. Trần Huyên. Bạn nào thấy cần thì cứ tham … more →
Genius dies at 104
Tamal wrote 1 year ago: Henri Cartan Photo Courtesy: Russian Academy of Sciences, of which Cartan was a foreign member. He … more →
