Ideals (ring theory) | Homological algebra | Theorems in algebraic number theory | Group theory

Principal ideal theorem

In mathematics, the principal ideal theorem of class field theory, a branch of algebraic number theory, says that extending ideals gives a mapping on the class group of an algebraic number field to the class group of its Hilbert class field, which sends all ideal classes to the class of a principal ideal. The phenomenon has also been called principalization, or sometimes capitulation. (Wikipedia).

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Abstract Algebra | Principal Ideals of a Ring

We define the notion of a principal ideal of a ring and give some examples. We also prove that all ideals of the integers are principal ideals, that is, the integers form a principal ideal domain (PID). http://www.michael-penn.net https://www.researchgate.net/profile/Michael_Penn5 http://

From playlist Abstract Algebra

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Principal axes theorem + orthogonal matrices

Free ebook http://tinyurl.com/EngMathYT A basic introduction to orthogonal matrices and the principal axes theorem. Several examples are presented involving a simplification of quadratic (quadric) forms. A proof is also given.

From playlist Engineering Mathematics

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Every Nonzero Prime Ideal in a Principal Ideal Domain is Maximal Proof

Please Subscribe here, thank you!!! https://goo.gl/JQ8Nys Every Nonzero Prime Ideal in a Principal Ideal Domain is Maximal Proof

From playlist Abstract Algebra

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Abstract Algebra | Maximal and prime ideals.

We prove some classic results involving maximal and prime ideals. Specifically we prove the an ideal P is prime iff R/P is an integral domain. Further, we prove that an ideal M is maximal iff R/M is a field. http://www.michael-penn.net https://www.researchgate.net/profile/Michael_Penn5 ht

From playlist Abstract Algebra

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RNT2.4. Gaussian Primes

Ring Theory: As an application of all previous ideas on rings, we determine the primes in the Euclidean domain of Gaussian integers Z[i]. Not only is the answer somewhat elegant, but it contains a beautiful theorem on prime integers due to Fermat. We finish with examples of factorization

From playlist Abstract Algebra

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Proof: Prime Ideals are Maximal in a PID

In a principal ideal domain, if an ideal is a prime ideal, that implies it is a maximal ideal, as long as it is not just the zero ideal. Here we give a straightforward explanation of this theorem from ring theory! Ring & Module Theory playlist: https://www.youtube.com/playlist?list=PLug5Z

From playlist Ring & Module Theory

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Commutative algebra 59: Krull's principal ideal theorem

This lecture is part of an online course on commutative algebra, following the book "Commutative algebra with a view toward algebraic geometry" by David Eisenbud. We give some applications of the theorems we proved about the dimension of local rings. We first show that the dimension of a

From playlist Commutative algebra

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Rings and modules 4 Unique factorization

This lecture is part of an online course on rings and modules. We discuss unique factorization in rings, showing the implications (Integers) implies (Euclidean domain) implies (Principal ideal domain) implies (Unique factorization domain). We give a few examples to illustrate these implic

From playlist Rings and modules

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Lecture 20. Modules over PIDs

Notes by Keith Conrad to follow along: https://kconrad.math.uconn.edu/blurbs/linmultialg/modulesoverPID.pdf

From playlist Abstract Algebra 2

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Abstract Algebra | Introduction to Principal Ideal Domains (PIDs)

After introducing the notion of a principal ideal domain (pid), we give some examples, and prove some simple results. Please Subscribe: https://www.youtube.com/michaelpennmath?sub_confirmation=1 Personal Website: http://www.michael-penn.net Randolph College Math: http://www.randolphcolle

From playlist Abstract Algebra

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Stefano Marseglia, Computing isomorphism classes of abelian varieties over finite fields

VaNTAGe Seminar, February 1, 2022 License: CC-BY-NC-SA Links to some of the papers mentioned in this talk: Honda: https://doi.org/10.2969/jmsj/02010083 Tate: https://link.springer.com/article/10.1007/BF01404549 Deligne: https://eudml.org/doc/141987 Hofmann, Sircana: https://arxiv.org/ab

From playlist Curves and abelian varieties over finite fields

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Michael Temkin - Logarithmic geometry and resolution of singularities

Correction: The affiliation of Lei Fu is Tsinghua University. I will tell about recent developments in resolution of singularities achieved in a series of works with Abramovich and Wlodarczyk – resolution of log varieties, resolution of morphisms and a no-history (or dream) algorithm for

From playlist Conférence « Géométrie arithmétique en l’honneur de Luc Illusie » - 5 mai 2021

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Elliptic Curves - Lecture 2 - Number Fields VS Elliptic Curves

This video is part of a graduate course on elliptic curves that I taught at UConn in Spring 2021. The course is an introduction to the theory of elliptic curves. More information about the course can be found at the course website: https://alozano.clas.uconn.edu/math5020-elliptic-curves/

From playlist An Introduction to the Arithmetic of Elliptic Curves

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Keith Conrad - Prime Factorization From Euclid to Noether

This talk was part of Number Theory Day 2023, at UConn. More information about the event can be found here: https://alozano.clas.uconn.edu/number-theory-day/

From playlist Number Theory Day

Related pages

Algebraic number field | Hilbert class field | Principalization (algebra) | Local Fields | Mathematics | Class field theory | Ideal (ring theory) | Ring of integers | Algebraic number theory | Principal ideal | Transfer (group theory)