## Perron-Frobenius Theorem

## Reducible Matrix

## Emacs Lisp

## Cheeger-Alon-Milman Inequality

## Rayleigh Quotient

## Spectral Graph Theory

Lecture notes that I scribbled for CSCI5160: Approximation Algorithms (2021 Spring) taught by Prof. Siu On CHAN at CUHK.

## Courant-Fischer Theorem

## Loewner order

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