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Basel problem

The Basel problem is a problem in mathematical analysis with relevance to number theory, concerning an infinite sum of inverse squares. It was first posed by Pietro Mengoli in 1650 and solved by Leonhard Euler in 1734, and read on 5 December 1735 in The Saint Petersburg Academy of Sciences. Since the problem had withstood the attacks of the leading…

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Overview

Euler's approach

The Riemann zeta function

A proof using Euler's formula and L'Hôpital's rule

A proof using Fourier series

Another proof using Parseval's identity

Proof using differentiation under the integral sign

Cauchy's proof

Proof assuming Weil's conjecture on Tamagawa numbers

Geometric proof

Other identities

Advanced semantic analysis

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Map overview Semantic statistics

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Basel problem

Nodes120
Edges119
Triples40
Avg. degree1.98
Density0.016667
Components1

How this topic connects Entity context

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Basel problem

Top relations

related to External links · 24
Basel problem → An, And, Basel, Beyond Mere Convergence, Chapman, December, English, Euclidean, Euler's, Evaluating, February, How Euler, James, Lucas Willis, OslerEd Sandifer, PDF, SangwinFrom, Sellers, Summing, The Proof
related to Geometric proof · 15
Basel problem → An, Call, Choose, Draw, Euclidean, If, In, Note, Now, Take, The, The Basel, Then, When, You
is a · 1
Basel problem → problem in mathematical analysis with relevance to number theory

Important terminology Word statistics

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Important terminology

displaystyle frac pi sum zeta right infty proof problem left series function basel sin circle cdots infinite two end product

Entity relationships Subject–Predicate–Object triples

Extracted RDF-like relationships with confidence and source. The table includes structured facts and lower-confidence contextual relations.
SubjectPredicateObjectConfidenceSrc
Basel problemis aproblem in mathematical analysis with relevance to number theory0.90text
Basel problemrelated to External linksAn0.60section
Basel problemrelated to External linksSangwinFrom0.60section
Basel problemrelated to External linksThe Proof0.60section
Basel problemrelated to External linksPDF0.60section
Basel problemrelated to External linksEnglish0.60section
Basel problemrelated to External linksEuler's0.60section
Basel problemrelated to External linksLucas Willis0.60section
Basel problemrelated to External linksThomas0.60section
Basel problemrelated to External linksOslerEd Sandifer0.60section
Basel problemrelated to External linksHow Euler0.60section
Basel problemrelated to External linksJames0.60section

Related concept clusters Concept neighborhoods

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