Notes

Algebraic Geometry

Topology

Permutation Group

Complex Analysis

Functional Analysis

Algebraic number theory

Field theory

高中数学

Reference

How to make a commutative diagram?

Commutative Diagrams In Notion — Red Gregory

$$ \begin{CD} @. A @>f>> B @>g>> C @>>> 0 \\ @. @AaAA @VVbV @ VVcV \\ 0@>>> A' @>f'>> B' @>g'>>C' \end{CD} $$

$$ \begin{CD}A @<<< B \\@AAA @AAA \\C @>>> D\end{CD} $$