Yulia Petrova

Proofs from THE BOOK

Graduate/undergraduate course · PUC-Rio, March–June 2024 · Tuesdays and Thursdays 9–11am, room 863, Edifício Leme

The aim of the course is to enjoy the beauty of mathematical proofs in different areas: number theory, algebra, analysis and beyond. The main source of inspiration is the book by M. Aigner and G. Ziegler, Proofs from THE BOOK, complemented by other interesting mathematical stories. Students choose their favorite topic and give a presentation on it.

Materials

Books: M. Aigner, G. Ziegler, Proofs from the BOOK; S. Tabachnikov, D. Fuchs, Mathematical Omnibus: Thirty Lectures on Classic Mathematics.
Homework: List 1 (PDF).

Talks given in the course

Date (2024)SpeakerTitle
5 MarchYulia PetrovaSix proofs of the infinity of prime numbers
7 MarchYulia PetrovaBertrand's postulate
12 MarchYulia PetrovaBuffon's needle, problem of the number of collisions of two blocks and π
14 MarchSergio AndradeUm pi real e um pi complexo: demonstração do Problema de Basileia e da Equação de Euler para Números Complexos
19 MarchYulia PetrovaEvery large point set has an obtuse angle
21 MarchYulia PetrovaSteiner's simetrization and applications: isodiametric inequality, isoperimetric inequality and Brunn–Minkowski inequality
26 MarchJoão ArthurThree applications of Euler's formula
2 AprilSergio AndradeCauchy and Fourier proofs of the Basel problem
4 AprilAnselmo de Souza PontesPeriod 3 implies all other periods
9 AprilSergio AndradeLemma Borel–Cantelli and Gamma function
11 AprilAnselmo de Souza PontesPeriod 3 implies chaos
16 AprilBruno BaldisseraOn Lemma of Littlewood and Offord
18 AprilYulia PetrovaDiscussion of problems from List 1
25 AprilCarlos HenriqueAproximações por racionais
30 AprilJoão ArthurRepresentando números como soma de dois quadrados
2 MayIago de CarvalhoGödel's incompleteness theorems. Part 1
7 MayIago de CarvalhoGödel's incompleteness theorems. Part 2
9 MayIago de CarvalhoGödel's incompleteness theorems. Part 3
14 MayYulia PetrovaShuffling cards
16 MayIvan OgloblinEvery finite division ring is a field
21 MayBruno BaldisseraSobre a conjectura de Borsuk
23 MayRony GeymarO teorema π-λ de Dynkin e a unicidade da medida de Lebesgue
28 MayJoão ArthurPolinômios ciclotômicos e versões fracas de teoremas fortes
18 JuneCarlos HenriqueNúmeros p-ádicos e o teorema de Ostrowski
20 JuneCarlos HenriqueFórmulas de Euler em Teoria dos Números
25 JuneIvan OgloblinOf friends and politicians
27 JuneBruno BaldisseraA conjectura da sensitividade
2 JulyRony GeymarIn praise of inequalities
4 JulyRony GeymarFundamental theorem of algebra