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Search results for “algebra”

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50 results

IMO 2018

2026Problem sheet

59th International Mathematical Olympiad. Cluj-Napoca, Romania, 2018.
0
410

IMO 2019

2026Problem sheet

60th International Mathematical Olympiad, 2019.
0
390

IMO 2020

2026Problem sheet

61st International Mathematical Olympiad, 2020.
0
260

IMO 2021

2026Problem sheet

62nd International Mathematical Olympiad, 2021.
0
330

IMO 2022

2026Problem sheet

63rd International Mathematical Olympiad. Oslo, 2022.
0
410

IMO 2025

2026Problem sheet

66th International Mathematical Olympiad. Sunshine Coast, 2025.
0
440

Matrices

2026TheorySergey

A matrix, its notation, and the main types: row, column, echelon, square, diagonal, identity, symmetric - defined and shown with worked examples.
1
570

The Steinberg Representation

2026TheorySean Cotner

An introduction to the Steinberg representation of a finite group of Lie type — its alternating-sum construction from parabolic inductions, worked out explicitly for SL_2.

0
270
@sean_cotner

NSF Research Fellow and postdoc at the University of Bonn. Previously an NSF Research Fellow and Postdoctoral Assistant Professor at the University of Michigan, and before that a graduate student at Stanford, advised by Brian Conrad. Interested in arithmetic geometry, algebraic groups (broadly construed), and integral questions connected to the local Langlands program.