Learn how to solve a non-factorable quadratic congruence with prime modulus. Then check out https://brilliant.org/blackpenredpen/ and try their daily problems now.

We will see how to solve a non-factorable quadratic congruence by completing the square and…

Programa de Doutorado: Topologia das Variedades - Aula 04 Professor: Vinicius Ramos Aulas anteriores: http://bit.ly/2ToLE0x Pré-requisito: Análise em Varieda...

In this monster of a video, I solve 111 linear algebra true false questions in a mega 4.5 hour marathon. As an added bonus, I'll say every question number in a different language. I'll go through linear equations, matrix algebra, determinants, vector spaces…

Speaker: Ananyo Dan (IMPA) Aspects of the semi-regularity map Event: https://impa.br/en_US/eventos-do-impa/eventos-2019/hodge-theory-day/ What is now called ...

Speaker: Remke Kloosterman (Padova)
Noether-Lefschetz theory for singular threefolds
Event: https://impa.br/en_US/eventos-do-impa/eventos-2019/hodge-theory-day/

What is now called Hodge theory is a culmination of great amount of efforts starting from the…

Speaker: Misha Verbitsky (IMPA)
Bogomolov-Tian-Todorov theorem for a non-Kahler holomorphically symplectic
manifolds
Event: https://impa.br/en_US/eventos-do-impa/eventos-2019/hodge-theory-day/

What is now called Hodge theory is a culmination of great amount…

Speaker: Younes Nikdelan (UERJ) Gauss-Manin Connection in Disguise for Dwork Family Event: https://impa.br/en_US/eventos-do-impa/eventos-2019/hodge-theory-da...

Programa de Doutorado: Dinâmica Hiperbólica - Aula 04 Professores: Marcelo Viana / Fernando Lenarduzzi Aulas anteriores: http://bit.ly/2J0NMXR Difeomorfismos...

Speaker: Roberto Villaflor (IMPA) Artinian Gorenstein algebras and components of the Hodge locus Event: https://impa.br/en_US/eventos-do-impa/eventos-2019/ho...

Speaker: Hossein Movasati (IMPA) Hunting new Hodge cycles for cubic hypersurfaces Event: https://impa.br/en_US/eventos-do-impa/eventos-2019/hodge-theory-day/...

The Putnam Exam has legendary difficulty: the average (median) score is usually 1 out of a possible 120 points. No calculators allowed though, and you have to prove everything very carefully. This is one of the easier questions from a past test.

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