Universal algebra

Subalgebra

In mathematics, a subalgebra is a subset of an algebra, closed under all its operations, and carrying the induced operations. "Algebra", when referring to a structure, often means a vector space or module equipped with an additional bilinear operation. Algebras in universal algebra are far more general: they are a common generalisation of all algebraic structures. "Subalgebra" can refer to either case. (Wikipedia).

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Prealgebra 1.3a - Subtracting

An introduction to subtraction, the terms and concepts involved, and subtraction as the opposite of addition. Some example problems are carefully worked and explained. From the Prealgebra course by Derek Owens. This course is available online at http://www.LucidEducation.com.

From playlist Prealgebra Chapter 1 (Complete chapter)

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Prealgebra Lecture 4.4: How to Add and Subtract Fractions. Finding LCD.

https://www.patreon.com/ProfessorLeonard Prealgebra Lecture 4.4: How to Add and Subtract Fractions. Finding LCD.

From playlist Prealgebra (Full Length Videos)

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Prealgebra Lecture 4.3: How to Multiply and Divide Fractions

https://www.patreon.com/ProfessorLeonard Prealgebra Lecture 4.3: Multiplying and Dividing Fractions

From playlist Prealgebra (Full Length Videos)

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Prealgebra Lecture 2.3: Subtracting Integers. How to Change Subtraction to Addition

https://www.patreon.com/ProfessorLeonard Prealgebra Lecture 2.3: Subtracting Integers. How to Change Subtraction to Addition

From playlist Prealgebra (Full Length Videos)

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Prealgebra Lecture 1.3: Addition and Subtraction of whole numbers. Perimeter.

https://www.patreon.com/ProfessorLeonard Prealgebra Lecture 1.3: Addition and Subtraction of whole numbers. Perimeter.

From playlist Prealgebra (Full Length Videos)

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Prealgebra 1.3b - Words that Indicate Subtraction

Word problems involving subtractions, and how to recognize when subtraction is the appropriate operation to use. From the Prealgebra course by Derek Owens. This course is available online at http://www.LucidEducation.com.

From playlist Prealgebra Chapter 1 (Complete chapter)

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Prealgebra Lecture 4.5: Add/Subract Fractions When the Fractions do Not Have a Common Denominator.

https://www.patreon.com/ProfessorLeonard Prealgebra Lecture 4.5: Adding and Subtracting Fractions When the Fractions do Not Initially Have a Common Denominator.

From playlist Prealgebra (Full Length Videos)

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Colleen Robles

https://www.math.ias.edu/files/media/agenda.pdf More videos on http://video.ias.edu

From playlist Mathematics

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Xin Li: Cartan subalgebras in C*-algebras

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From playlist HIM Lectures: Trimester Program "Non-commutative Geometry and its Applications"

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Representations of Galois algebras – Vyacheslav Futorny – ICM2018

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From playlist Lie Theory and Generalizations

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Stefaan Vaes - Classification of regular subalgebras of the hyperfinite II1 factor

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From playlist Groupes, géométrie et analyse : conférence en l'honneur des 60 ans d'Alain Valette

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"Gaussian Free Field in beta ensembles and random surfaces" - Alexei Borodin

Alexei Borodin MIT November 4, 2013 For more videos, check out http://www.video.ias.edu

From playlist Mathematics

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Prealgebra Lecture 4.1 Part 1

Prealgebra Lecture 4.1 Part 1: Introduction to Fractions

From playlist Prealgebra Playlist 1

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MAST30026 Lecture 16: Stone-Weierstrass theorem (Part 2)

In this lecture I introduced the algebra structure on spaces of real-valued functions, and proved the Stone-Weierstrass theorem about dense subalgebras of this algebra. Lecture notes: http://therisingsea.org/notes/mast30026/lecture16.pdf The class webpage: http://therisingsea.org/post/mas

From playlist MAST30026 Metric and Hilbert spaces

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On the structure of quantum Markov semigroups - F. Fagnola - PRACQSYS 2018 - CEB T2 2018

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From playlist 2018 - T2 - Measurement and Control of Quantum Systems: Theory and Experiments

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10/13/17 Yuri Berest

Differential Isomorphism and Equivalence of Algebraic Varieties Board at 49:35 Sum_i=1^N 2/(x-phi_i(y,t))^2

From playlist Fall 2017

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Oksana Yakimova, Research talk - 30 January 2015

Oksana Yakimova (Universität Jena) - Research talk http://www.crm.sns.it/course/4158/ On symmetric invariants of semi-direct products. Let $\mathfrak g$ be a complex reductive Lie algebra. By the Chevalley restriction theorem, the subalgebra of symmetric invariants $S(\mathfrak g)^{\math

From playlist Lie Theory and Representation Theory - 2015

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Prealgebra Lecture 1.6 Part 1

Prealgebra Lecture 1.6 Part 1: Division of Whole Numbers

From playlist Prealgebra Playlist 1

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Prealgebra Lecture 4.5 Part 1

Prealgebra Lecture 4.5 Part 1: Adding and Subtracting Fractions When the Fractions do Not Initially Have a Common Denominator.

From playlist Prealgebra Playlist 1

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The chromatic algebra of 2x2 matrices I | Wild Linear Algebra B 41 | NJ Wildberger

The three-fold symmetry of chromogeometry, involving one Euclidean and two relativistic geometries (blue, red and green), algebraically takes place inside the 2x2 matrices. This is a vector space with a multiplication, which becomes an algebra (associative with identity is included in our

From playlist WildLinAlg: A geometric course in Linear Algebra

Related pages

Subset | Module (mathematics) | Variety (universal algebra) | Structure (mathematical logic) | Algebraic structure | Model theory | Subgroup | Unital algebra | Mathematics | Vector space | Associative algebra | Algebra over a field | Theoretical computer science | Universal algebra | Substructure (mathematics) | Lie algebra | Closed set | Group (mathematics)