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  2. Mathematical structure - Wikipedia

    en.wikipedia.org/wiki/Mathematical_structure

    Algebraic structure: there are operations of addition and multiplication, the first of which makes it into a group and the pair of which together make it into a field. A measure: intervals of the real line have a specific length , which can be extended to the Lebesgue measure on many of its subsets .

  3. Algebraic structure - Wikipedia

    en.wikipedia.org/wiki/Algebraic_structure

    An axiom of an algebraic structure often has the form of an identity, that is, an equation such that the two sides of the equals sign are expressions that involve operations of the algebraic structure and variables. If the variables in the identity are replaced by arbitrary elements of the algebraic structure, the equality must remain true.

  4. Outline of algebraic structures - Wikipedia

    en.wikipedia.org/.../Outline_of_algebraic_structures

    In mathematics, many types of algebraic structures are studied. Abstract algebra is primarily the study of specific algebraic structures and their properties. Algebraic structures may be viewed in different ways, however the common starting point of algebra texts is that an algebraic object incorporates one or more sets with one or more binary operations or unary operations satisfying a ...

  5. Module (mathematics) - Wikipedia

    en.wikipedia.org/wiki/Module_(mathematics)

    Modules over a Lie algebra are (associative algebra) modules over its universal enveloping algebra. If R and S are rings with a ring homomorphism φ : R → S, then every S-module M is an R-module by defining rm = φ(r)m. In particular, S itself is such an R-module.

  6. Abstract algebra - Wikipedia

    en.wikipedia.org/wiki/Abstract_algebra

    In mathematics, more specifically algebra, abstract algebra or modern algebra is the study of algebraic structures, which are sets with specific operations acting on their elements. [1] Algebraic structures include groups , rings , fields , modules , vector spaces , lattices , and algebras over a field .

  7. Mixed Hodge structure - Wikipedia

    en.wikipedia.org/wiki/Mixed_Hodge_structure

    In algebraic geometry, a mixed Hodge structure is an algebraic structure containing information about the cohomology of general algebraic varieties. It is a generalization of a Hodge structure , which is used to study smooth projective varieties .

  8. Category:Algebraic structures - Wikipedia

    en.wikipedia.org/wiki/Category:Algebraic_structures

    In algebra, a branch of pure mathematics, an algebraic structure consists of one or more sets closed under one or more operations, satisfying some axioms. Abstract algebra is primarily the study of algebraic structures and their properties. The notion of algebraic structure has been formalized in universal algebra

  9. Associative algebra - Wikipedia

    en.wikipedia.org/wiki/Associative_algebra

    In mathematics, an associative algebra A over a commutative ring (often a field) K is a ring A together with a ring homomorphism from K into the center of A.This is thus an algebraic structure with an addition, a multiplication, and a scalar multiplication (the multiplication by the image of the ring homomorphism of an element of K).