Results 31 to 40 of about 694,433 (211)

Projections of Galois Rings

open access: yesAlgebra and Logic, 2015
Let R and R (phi) be associative rings with isomorphic subring lattices and phi be a lattice isomorphism (a projection) of the ring R onto the ring R (phi) . We call R (phi) the projective image of a ring R and call the ring R itself the projective preimage of a ring R (phi) . We study lattice isomorphisms of Galois rings.
openaire   +4 more sources

Hopf-Galois module structure of tame Cp×Cp extensions [PDF]

open access: yes, 2016
Let $ p $ be an odd prime number, $ K $ a number field containing a primitive $ p^{th} $ root of unity, and $ L $ a Galois extension of $ K $ with Galois group isomorphic to $ C_{p} \times C_{p} $. We study in detail the local and global structure of the
Truman, Truman, Paul
core   +1 more source

The general Ikehata theorem for H-separable crossed products

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2000
Let B be a ring with 1,   C the center of B,   G an automorphism group of B of order n for some integer n,   CG the set of elements in C fixed under G,   Δ=Δ(B,G,f) a crossed product over B where f is a factor set from G×G to U(CG). It is shown that Δ is
George Szeto, Lianyong Xue
doaj   +1 more source

The Galois endomorphism ring of a Galois Azumaya extension

open access: yesInternational Journal of Algebra, 2013
Let B be a Galois Azumaya extension of B G with Galois group G; that is, B is a Galois extension of B G with Galois group G which is an Azumaya C G -algebra where C is the center of B. Denote B G by D and the endomorphism ring Hom(DB, DB) of the left D-module endomorphisms of B by Ω.
Xiaolong Jiang, George Szeto
openaire   +1 more source

Finite completely primary rings in which the product of any two zero divisors of a ring is in its coefficient subring

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1994
According to general terminology, a ring R is completely primary if its set of zero divisors J forms an ideal. Let R be a finite completely primary ring. It is easy to establish that J is the unique maximal ideal of R and R has a coefficient subring S (i.
Yousif Alkhamees
doaj   +1 more source

Calculation of Fourier-Galois transforms in reduced binary number systems [PDF]

open access: yesКомпьютерная оптика, 2018
The paper proposes a new method for calculating Fourier-Galois transforms (number-theoretical transforms), which are a modular analog of the discrete Fourier transform.
Vladimir Chernov
doaj   +1 more source

Suitability of Generalized GAROs on FPGAs as PUFs or TRNGs Considering Spatial Correlations

open access: yesIEEE Open Journal of the Industrial Electronics Society, 2023
In the last years, guaranteeing the security in Internet of things communications has become an essential task. In this article, the bias of a wide set of oscillators has been studied to determine their suitability as both true random number generators ...
Miguel Garcia-Bosque   +4 more
doaj   +1 more source

Galois ring isomorphism problem

open access: yesCoRR, 2020
Recently, Doröz et al. (2017) proposed a new hard problem, called the finite field isomorphism problem, and constructed a fully homomorphic encryption scheme based on this problem. In this paper, we generalize the problem to the case of Galois rings, resulting in the Galois ring isomorphism problem.
openaire   +2 more sources

On Azumaya algebras with a finite automorphism group

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2001
Let B be a ring with 1, C the center of B, and G a finite automorphism group of B. It is shown that if B is an Azumaya algebra such that B=⊕∑g∈GJg where Jg={b∈B|bx=g(x)b   for all   x∈B}, then there exist orthogonal central idempotents {fi∈C|i=1,2,…,m ...
George Szeto, Lianyong Xue
doaj   +1 more source

Interactive Proofs for Rounding Arithmetic

open access: yesIEEE Access, 2022
Interactive proofs are a type of verifiable computing that secures the integrity of computations. The need is increasing as more computations are outsourced to untrusted parties, e.g., cloud computing platforms.
Shuo Chen   +3 more
doaj   +1 more source

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