Glossary

Plain-language definitions of the terms used across this site.

C

Cauchy-Riemann EquationsThe Cauchy-Riemann (CR) equations are two conditions on the real and imaginary parts of a complex function that must hold wherever the function has a complex derivative.

S

Sylow TheoremsThe Sylow theorems are results in finite group theory that guarantee, for each prime dividing a group's order, subgroups of the largest prime-power order, and restrict how many there are.

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