Results 11 to 20 of about 316,648 (204)

Primitive near-rings [PDF]

open access: yes, 1970
The theory of near-rings has arisen in a variety of ways. There is a natural desire to generalise the theory of rings and skew fields by relaxing some of their defining axioms.
Holcombe, William Michael Lloyd
core   +7 more sources

A note on a standard model for Galois rings

open access: yesApplicable Algebra in Engineering, Communication and Computing, 2023
Submitted to ...
Edgar Martínez-Moro   +2 more
openaire   +3 more sources

The Galois Theory of Matrix C-rings [PDF]

open access: yesApplied Categorical Structures, 2006
27 pages ...
Tomasz Brzezinski, Ryan B. Turner
openaire   +4 more sources

On p-Adic Estimates of Weights in Abelian Codes over Galois Rings [PDF]

open access: yes, 2005
Let p be a prime. We prove various analogues and generalizations of McEliece's theorem on the p-divisibility of weights of words in cyclic codes over a finite field of characteristic p. Here we consider Abelian codes over various Galois rings.
Katz, Daniel Jerome
core   +1 more source

On Galois Extension of Rings [PDF]

open access: yesNagoya Mathematical Journal, 1966
Let Λ be a ring and G a finite group of ring automorphisms of Λ. The totality of elements of Λ which are left invariant by G is a subring of Λ. We call it the G-fixed subring of Λ. Let be the crossed product of Λ and G with trivial factor set, i.e. {u0} is a Λ-free basis of Δ and , and let Γ be a subring of the G-fixed subring of Λ which has the same ...
openaire   +3 more sources

Factor equivalence of Galois modules and regulator constants [PDF]

open access: yes, 2013
We compare two approaches to the study of Galois module structures: on the one hand, factor equivalence, a technique that has been used by Fröhlich and others to investigate the Galois module structure of rings of integers of number fields and of their ...
Bartel, Alex, Alex Bartel
core   +1 more source

On Galois Conditions and Galois Groups of Simple Rings [PDF]

open access: yesTransactions of the American Mathematical Society, 1965
Throughout the present paper, R will be a simple ring, where we shall understand by a simple ring a total matrix ring over a division rings. If S' is any subring containing the identity element 1 of R, we denote by VR(S') the centralizer of S' in R, VR(S') = VR(VR(S')) and by 0 (S', R) we denote the group of all automorphisms of R which are the ...
openaire   +1 more source

Galois actions on rings and finite Galois coverings.

open access: yesMATHEMATICA SCANDINAVICA, 1989
This paper is devoted to developing a general finite Galois theory for rings which when specialized to finite dimensional algebras over an algebraically closed field gives the Bongartz, Gabriel and Riedtmann theory of finite Galois coverings and when specialized to commutative rings gives the usual Galois theory of commutative rings.
Auslander, M., Reiten, I., Smalo, S.O.
openaire   +3 more sources

An Authentication Code over Galois Rings with Optimal Impersonation and Substitution Probabilities

open access: yesMathematical and Computational Applications, 2018
Two new systematic authentication codes based on the Gray map over a Galois ring are introduced. The first introduced code attains optimal impersonation and substitution probabilities.
Juan Carlos Ku-Cauich   +2 more
doaj   +1 more source

SERRE WEIGHTS AND BREUIL’S LATTICE CONJECTURE IN DIMENSION THREE

open access: yesForum of Mathematics, Pi, 2020
We prove in generic situations that the lattice in a tame type induced by the completed cohomology of a $U(3)$-arithmetic manifold is purely local, that is, only depends on the Galois representation at places above $p$. This is a generalization to $\text{
DANIEL LE   +3 more
doaj   +1 more source

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