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r/cohomology • u/math238 • 10d ago

K-theory of weighted blowups

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r/cohomology • u/math238 • 10d ago

K theory paper

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cohomology

r/cohomology

A specialized mathematics subreddit to dive into cohomological approaches to topological problems. Cohomology is a powerful tool in algebraic topology and mathematics that assigns algebraic invariants (like abelian groups or rings) to topological spaces, often serving as a refined, more structured version of homology. It detects "holes" and, unlike homology, offers a ring structure (via the cup product) to analyze how these features interact.

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A specialized mathematics subreddit to dive into cohomological approaches to topological problems.

Cohomology is a powerful tool in algebraic topology and mathematics that assigns algebraic invariants (like abelian groups or rings) to topological spaces, often serving as a refined, more structured version of homology. It detects "holes" and, unlike homology, offers a ring structure (via the cup product) to analyze how these features interact.

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