Results 51 to 60 of about 13,211 (169)

Integral Equation Analysis of EM Scattering from Multilayered Metallic Photonic Crystal Accelerated with Adaptive Cross Approximation

open access: yesInternational Journal of Antennas and Propagation, 2015
A space-domain integral equation method accelerated with adaptive cross approximation (ACA) is presented for the fast and accurate analysis of electromagnetic (EM) scattering from multilayered metallic photonic crystal (MPC).
Jianxun Su   +4 more
doaj   +1 more source

Function algebras over valued fields [PDF]

open access: yesPacific Journal of Mathematics, 1973
Bachman, G., Beckenstein, E., Narici, L.
openaire   +3 more sources

Galerkin’s Spectral Method in the Analysis of Antenna Wall Operation

open access: yesApplied Sciences
In this paper, a solution to the problem of electromagnetic field scattering on a periodic, constrained, planar antenna structure placed on the boundary of two dielectric media was formulated.
Marian Wnuk
doaj   +1 more source

A METHOD OF CONSTRUCTING A BLOCK CIPHERS ROUND FUNCTION’S POLYNOMIAL OVER A FINITE FIELD

open access: yesСовременные информационные технологии и IT-образование, 2018
The work outlines the method of construction of round function as a polynomial of one variable over the finite field. The proposed method is based on the calculation of the initial cryptographic transformation at special points of the finite field and ...
Sergey A. Belov
doaj   +1 more source

Classes of weak Dembowski–Ostrom polynomials for multivariate quadratic cryptosystems

open access: yesJournal of Mathematical Cryptology, 2015
T. Harayama and D. K. Friesen [J. Math. Cryptol. 1 (2007), 79–104] proposed the linearized binomial attack for multivariate quadratic cryptosystems and introduced weak Dembowski–Ostrom (DO) polynomials in this framework over the finite field 𝔽2.
Alam Bilal, Özbudak Ferruh, Yayla Oğuz
doaj   +1 more source

Operator bases, S-matrices, and their partition functions

open access: yesJournal of High Energy Physics, 2017
Relativistic quantum systems that admit scattering experiments are quantitatively described by effective field theories, where S-matrix kinematics and symmetry considerations are encoded in the operator spectrum of the EFT.
Brian Henning   +3 more
doaj   +1 more source

β-Expansions in algebraic function fields over finite fields

open access: yesFinite Fields and Their Applications, 2007
The author studies \(\beta\)-expansions in algebraic function fields over finite fields. More precisely, let \({\mathbb F}\) be a finite field, \({\mathbb F}[x]\) be its ring of polynomials, and \({\mathbb F}((x^{-1}))\) be its field of formal Laurent series. Given \(z\) and \(\beta\) in \({\mathbb F}((x^{-1}))\), say that \[ z=\sum_{i=1}^{\infty}{{d_i}
openaire   +1 more source

Solomon's zeta functions over algebraic function fields

open access: yesManuscripta Mathematica, 1985
In 1977 L. Solomon introduced certain zeta functions in the study of lattices over orders in semisimple algebras over \({\mathbb{Q}}\). Implicit in Solomon's original definitions was the parallel concept of a zeta function associated with lattices over orders in semisimple \({\mathbb{F}}_ q(X)\)-algebras, where \({\mathbb{F}}_ q(X)\) is the field of ...
openaire   +1 more source

Δ–Springer varieties and Hall–Littlewood polynomials

open access: yesForum of Mathematics, Sigma
The $\Delta $ -Springer varieties are a generalization of Springer fibers introduced by Levinson, Woo and the author that have connections to the Delta Conjecture from algebraic combinatorics.
Sean T. Griffin
doaj   +1 more source

The genus field of an algebraic function field

open access: yesJournal of Number Theory, 1992
Let \(k=\mathbb{F}(T)\) be the rational function field over the finite field \(\mathbb{F}_q\), \(\ell\) a prime dividing \(q-1\), and \(K\) a cyclic extension of degree \(\ell\). In this paper the author develops the genus theory of \(K/k\) as the analogy to that of quadratic number fields over \(\mathbb{Q}\). As is well known the class field theory is
openaire   +2 more sources

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