• commutative algebra and field theory, the Frobenius endomorphism (after Ferdinand Georg Frobenius) is a special endomorphism of commutative rings with prime characteristic...
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  • Thumbnail for Endomorphism
    In mathematics, an endomorphism is a morphism from a mathematical object to itself. An endomorphism that is also an isomorphism is an automorphism. For...
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  • endomorphism Frobenius inner product Frobenius norm Frobenius method Frobenius group Frobenius theorem (differential topology) Georg Ludwig Frobenius...
    935 bytes (140 words) - 06:54, 7 February 2022
  • \sigma (x):=x^{p}+p\delta (x)} defines a ring endomorphism which is a lift of the Frobenius endomorphism. When the ring R is p-torsion free the correspondence...
    3 KB (427 words) - 22:52, 25 June 2023
  • In mathematics, the Frobenius endomorphism is defined in any commutative ring R that has characteristic p, where p is a prime number. Namely, the mapping...
    2 KB (257 words) - 20:51, 12 August 2023
  • of prime characteristic p, R → R, x → xp is a ring endomorphism called the Frobenius endomorphism. If R and S are rings, the zero function from R to S...
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  • has characteristic 0, or, when k has characteristic p > 0, the Frobenius endomorphism x ↦ xp is an automorphism of k. The separable closure of k is algebraically...
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  • of the trace of the Frobenius endomorphism on its cohomology groups. There are several generalizations: the Frobenius endomorphism can be replaced by a...
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  • F[X] (where F is assumed to have prime characteristic p). If the Frobenius endomorphism x ↦ x p {\displaystyle x\mapsto x^{p}} of F is not surjective, there...
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  • under the Frobenius endomorphism F*. Brion & Kumar (2005) give a detailed discussion of Frobenius splittings. A fundamental property of Frobenius-split projective...
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  • If R is an integral domain of prime characteristic p, then the Frobenius endomorphism x ↦ xp is injective. The Wikibook Abstract algebra has a page on...
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  • ≠ p {\displaystyle l\neq p} , we make use of the theory of the Frobenius endomorphism ϕ {\displaystyle \phi } and division polynomials. Note that considering...
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  • is induced by a nondiscrete valuation of rank 1, such that the Frobenius endomorphism Φ is surjective on K°/p where K° denotes the ring of power-bounded...
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  • Frobenius endomorphism (also known as Frobenius morphism, Frobenius map) Frobenius determinant theorem Frobenius formula Frobenius group Frobenius complement...
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  • an endomorphism whose square is the endomorphism αφ associated to the Frobenius endomorphism φ of the field F. Roughly speaking, this endomorphism απ...
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  • that given an a ∈ F p {\displaystyle a\in \mathbb {F} _{p}} the Frobenius endomorphism y ↦ y p {\displaystyle y\mapsto y^{p}} gives a nonzero polynomial...
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  • Thumbnail for Freshman's dream
    demonstrates that exponentiation by p produces an endomorphism, known as the Frobenius endomorphism of the ring. The demand that the characteristic p...
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  • Thumbnail for Integer
    of algebras Ring homomorphisms • Kernel • Inner automorphism • Frobenius endomorphism Algebraic structures • Module • Associative algebra • Graded ring...
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  • quasi-Fuchsian. For p-adic curves the analogue of complex conjugation is the Frobenius endomorphism, and the analogue of the quasi-Fuchsian condition is an integrality...
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  • duality theories. Frobenius algebras began to be studied in the 1930s by Richard Brauer and Cecil Nesbitt and were named after Georg Frobenius. Tadashi Nakayama...
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  • direct product of an empty collection of rings is the zero ring. The endomorphism ring of the trivial group is the zero ring. The ring of continuous real-valued...
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  • all R-linear maps forms a ring, also called the endomorphism ring and denoted by EndR(V). The endomorphism ring of an elliptic curve. It is a commutative...
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  • module), and is necessarily a group endomorphism of the abelian group (M, +). The set of all group endomorphisms of M is denoted EndZ(M) and forms a ring...
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  • characteristic n is a (Z/nZ)-algebra in the same way. Given an R-module M, the endomorphism ring of M, denoted EndR(M) is an R-algebra by defining (r·φ)(x) = r·φ(x)...
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  • mathematics, more specifically in abstract algebra, the Frobenius theorem, proved by Ferdinand Georg Frobenius in 1877, characterizes the finite-dimensional associative...
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  • Thumbnail for Algebraic number theory
    of algebras Ring homomorphisms • Kernel • Inner automorphism • Frobenius endomorphism Algebraic structures • Module • Associative algebra • Graded ring...
    40 KB (5,798 words) - 19:10, 28 January 2024
  • generally used before starting a proof of primality. Fermat quotient Frobenius endomorphism p-derivation Fractions with prime denominators: numbers with behavior...
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  • analogous to the Wrońskian with differentiation replaced by the Frobenius endomorphism over a finite field. Alternant matrix Vandermonde matrix Peano published...
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  • mathematics. More generally, endomorphism rings of abelian groups are rarely commutative, the simplest example being the endomorphism ring of the Klein four-group...
    24 KB (3,098 words) - 18:59, 6 November 2023
  • algebra, an involution is important to the Kazhdan–Lusztig polynomial. The endomorphism ring of an elliptic curve becomes a *-algebra over the integers, where...
    11 KB (1,359 words) - 10:03, 10 March 2024