Post series contain multiple posts devoted to a certain topic. The links of all of them can be found in this handy page.

## Non-unique Factorisation

Explore the world of non-unique factorisation in commutative rings with zero divisors! This series explains some of the concepts found in the paper:

Anderson, D. D.; Valdes-Leon, Silvia. Factorization in commutative rings with zero divisors. Rocky Mountain J. Math. 26 (1996), no. 2, 439–480

Here are the posts:

- Non-unique Factorisation: Part 1: Types of associates
- Non-unique Factorisation: Part 2: A little about presimplifiable rings

## Waldhausen Cats

This series of posts attempts to explain some aspects of the paper:

Waldhausen, Friedhelm. “Algebraic K-theory of spaces.” Algebraic and geometric topology. Springer Berlin Heidelberg, 1985. 318-419.

Here are the posts so far:

- Waldhausen Cats 1: Categories with Cofibrations
- Waldhausen Cats 2: Exact Categories and Cobase Change
- Waldhausen Cats 3: Exact Functors
- Waldhausen Cats 4: Arrow Categories
- Waldhausen Cats 5: Subcategories of Arrow

## Wild Spectral Sequences

This series gives examples of spectral sequences being used in ‘toy examples’. It presupposes some basic knowledge of spectral sequences. After reading these posts together with a basic introduction, the use of spectral sequences should be easy as pie!