Results 11 to 20 of about 582 (179)

Topological Galois theory

open access: yesAdvances in Mathematics, 2016
We introduce an abstract topos-theoretic framework for building Galois-type theories in a variety of different mathematical contexts; such theories are obtained from representations of certain atomic two-valued toposes as toposes of continuous actions of a topological group.
openaire   +5 more sources

Differential Galois theory II

open access: yesAnnals of Pure and Applied Logic, 1997
This paper proposes a generalization of Kolchin's Galois theory of differential fields. In the Kolchin theory, the Galois groups correspond to algebraic groups over the subfield of constants; moreover every algebraic group can arise in this way. In this paper, the constants are replaced by an arbitrary differential algebraic set \(X\). Accordingly, \(X\
Anand Pillay
openaire   +6 more sources

A Novel Cipher-Based Data Encryption with Galois Field Theory [PDF]

open access: yesSensors, 2023
Both the act of keeping information secret and the research on how to achieve it are included in the broad category of cryptography. When people refer to “information security,” they are referring to the study and use of methods that make data transfers ...
Mohammad Mazyad Hazzazi   +3 more
doaj   +2 more sources

Noncyclic BCH and Srivastava codes over the subgroup of the groups of units of Galois rings $${G}{R}({{q}}^{{u}},{m})$$ for advanced error control [PDF]

open access: yesScientific Reports
This paper presents a systematic algebraic construction of noncyclic generalizations of BCH and Srivastava codes over Galois rings $$GR\left({q}^{u},m\right).$$ The proposed codes are defined via parity-check matrices whose entries are carefully chosen ...
Muhammad Sajjad   +4 more
doaj   +2 more sources

DIFFERENTIAL GALOIS THEORY AND INTEGRABILITY [PDF]

open access: yesInternational Journal of Geometric Methods in Modern Physics, 2009
This paper is an overview of our works that are related to investigations of the integrability of natural Hamiltonian systems with homogeneous potentials and Newton's equations with homogeneous velocity independent forces. The two types of integrability obstructions for these systems are presented.
Maciejewski, Andrzej J.   +1 more
openaire   +3 more sources

Galois Theory for Finite Algebras of Operations and Multioperations of Rank 2

open access: yesИзвестия Иркутского государственного университета: Серия "Математика", 2019
The construction of Galois theory for the algebras of operations and relations is a popular topic for investigation. It finds numerous applications in both algebra and discrete mathematics – especially for the perfect Galois connection, since if such a ...
N.A. Peryazev
doaj   +1 more source

Generation modulo the action of a permutation group [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2013
Originally motivated by algebraic invariant theory, we present an algorithm to enumerate integer vectors modulo the action of a permutation group. This problem generalizes the generation of unlabeled graph up to an isomorphism.
Nicolas Borie
doaj   +1 more source

Probabilistic Galois theory [PDF]

open access: yesBulletin of the London Mathematical Society, 2012
We show that there are at most $O_{n,ε}(H^{n-2+\sqrt{2}+ε})$ monic integer polynomials of degree $n$ having height at most $H$ and Galois group different from the full symmetric group $S_n$, improving on the previous 1973 world record $O_{n}(H^{n-1/2}\log H)$.
openaire   +2 more sources

SERRE WEIGHTS AND WILD RAMIFICATION IN TWO-DIMENSIONAL GALOIS REPRESENTATIONS

open access: yesForum of Mathematics, Sigma, 2016
A generalization of Serre’s Conjecture asserts that if $F$ is a totally real field, then certain characteristic
LASSINA DEMBÉLÉ   +2 more
doaj   +1 more source

DIFFERENTIATION OF POLYNOMIALS IN SEVERAL VARIABLES OVER GALOIS FIELDS OF FUZZY CARDINALITY AND APPLICATIONS TO REED-MULLER CODES

open access: yesAdvanced Engineering Research, 2018
Introduction. Polynomials in several variables over Galois fields provide the basis for the Reed-Muller coding theory, and are also used  in a number of cryptographic problems.
V. M. Deundyak, N. S. Mogilevskaya
doaj   +1 more source

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