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Autor principal: Banica, Teo
Formato: Preprint
Publicado: 2022
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Acceso en línea:https://arxiv.org/abs/2206.09283
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author Banica, Teo
author_facet Banica, Teo
contents This is an introduction to linear algebra and group theory. We first review the linear algebra basics, namely the determinant, the diagonalization procedure and more, and with the determinant being constructed as it should, as a signed volume. We discuss then the basic applications of linear algebra to questions in analysis. Then we get into the study of the closed groups of unitary matrices $G\subset U_N$, with some basic algebraic theory, and with a number of probability computations, in the finite group case. In the general case, where $G\subset U_N$ is compact, we explain how the Weingarten integration formula works, and we present some basic $N\to\infty$ applications.
format Preprint
id arxiv_https___arxiv_org_abs_2206_09283
institution arXiv
publishDate 2022
record_format arxiv
spellingShingle Linear algebra and group theory
Banica, Teo
Combinatorics
Probability
This is an introduction to linear algebra and group theory. We first review the linear algebra basics, namely the determinant, the diagonalization procedure and more, and with the determinant being constructed as it should, as a signed volume. We discuss then the basic applications of linear algebra to questions in analysis. Then we get into the study of the closed groups of unitary matrices $G\subset U_N$, with some basic algebraic theory, and with a number of probability computations, in the finite group case. In the general case, where $G\subset U_N$ is compact, we explain how the Weingarten integration formula works, and we present some basic $N\to\infty$ applications.
title Linear algebra and group theory
topic Combinatorics
Probability
url https://arxiv.org/abs/2206.09283