In mathematics, specifically abstract algebra, the isomorphism theorems (also known as Noether's isomorphism theorems) are theorems that describe the relationship between quotients, homomorphisms, and subobjects. Versions of the theorems exist for groups, rings, vector spaces, modules, Lie algebras, and various other algebraic structures. In universal algebra, the isomorphism theorems can be generalized to the context of algebras and congruences.
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specifically abstract algebra, the isomorphismtheorems (also known as Noether's isomorphismtheorems) are theorems that describe the relationship between...
isomorphic, with a unique isomorphism. The isomorphismtheorems provide canonical isomorphisms that are not unique. The term isomorphism is mainly used for algebraic...
B} be a real vector bundle of rank n. Then there is an isomorphism, now called a Thom isomorphism Φ : H k ( B ; Z 2 ) → H ~ k + n ( T ( E ) ; Z 2 ) , {\displaystyle...
in accordance with the general notion of isomorphism being a structure-preserving bijection. If an isomorphism exists between two graphs, then the graphs...
and only if it is continuous at some point. An isomorphism of topological groups is a group isomorphism that is also a homeomorphism of the underlying...
kernel and image of the homomorphism. The homomorphism theorem is used to prove the isomorphismtheorems. Given two groups G and H and a group homomorphism...
ψ indicated by the arrows are mutually inverse isomorphisms. Failure of the diamond isomorphismtheorem in a non-modular lattice. The composition ψφ is...
two are isometrically anti-isomorphic. The (anti-) isomorphism is a particular natural isomorphism. Let H {\displaystyle H} be a Hilbert space over a...
Whitney isomorphismtheorem states that, for connected graphs with more than four vertices, there is a one-to-one correspondence between isomorphisms of the...
In mathematics, the norm residue isomorphismtheorem is a long-sought result relating Milnor K-theory and Galois cohomology. The result has a relatively...
of order theory, an order isomorphism is a special kind of monotone function that constitutes a suitable notion of isomorphism for partially ordered sets...
In computability theory the Myhill isomorphismtheorem, named after John Myhill, provides a characterization for two numberings to induce the same notion...
homomorphism. The theorem is named after Witold Hurewicz, and generalizes earlier results of Henri Poincaré. The Hurewicz theorems are a key link between...
In mathematics, the Ornstein isomorphismtheorem is a deep result in ergodic theory. It states that if two Bernoulli schemes have the same Kolmogorov...
operator, which may be used to study Bernoulli schemes. The Ornstein isomorphismtheorem shows that Bernoulli shifts are isomorphic when their entropy is...
theory, the correspondence theorem (also the lattice theorem, and variously and ambiguously the third and fourth isomorphismtheorem) states that if N {\displaystyle...
coordinatewise. The isomorphismtheorems, which encompass the isomorphismtheorems of groups, rings, modules, etc. Birkhoff's HSP Theorem, which states that...
In mathematics, the bounded inverse theorem (also called inverse mapping theorem or Banach isomorphismtheorem) is a result in the theory of bounded linear...
a unique isomorphism, or more precisely: if q : Y → Q and q′ : Y → Q′ are two cokernels of f : X → Y, then there exists a unique isomorphism u : Q → Q′...
This is a list of notable theorems. Lists of theorems and similar statements include: List of algebras List of algorithms List of axioms List of conjectures...
{\displaystyle D\triangleleft C} are normal subgroups. Then there is an isomorphism of quotient groups: ( A ∩ C ) B ( A ∩ D ) B ≅ ( A ∩ C ) D ( B ∩ C ) D...
isomorphic to X / ∼ {\displaystyle X/\!\sim } ; this fact is one of the isomorphismtheorems. When the algebraic structure is a group for some operation, the...