Results 41 to 50 of about 13,211 (169)

Algorithmic complexity of linear nonassociative algebra

Вестник КазНУ. Серия математика, механика, информатика, 2020
One of the central problems of algebraic complexity theory is the complexity of multiplication in algebras. For this, first, the concept of algebra is defined and the class of algebras under study is fixed.
R. K. Kerimbaev, K. A. Dosmagulova, Zh. Kh. Zhunussova   +2 more
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Modular equations of a continued fraction of order six

Open Mathematics, 2019
We study a continued fraction X(τ) of order six by using the modular function theory. We first prove the modularity of X(τ), and then we obtain the modular equation of X(τ) of level n for any positive integer n; this includes the result of Vasuki et al ...
Lee Yoonjin, Park Yoon Kyung
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On Some Results of Investigation of Singular Systems of Integro- Differential Equations Obtained by Yu. Ye. Boyarintsev Research Group

Известия Иркутского государственного университета: Серия "Математика", 2017
This paper is dedicated to the 110th anniversary of the dean of the mathematical faculty of Irkutsk State University Vladimir Vladimirovich Vasiliev.
M. V. Bulatov, V. F. Chistyakov
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Non-perturbative completion of Hopf-algebraic Dyson-Schwinger equations

Nuclear Physics B, 2020
For certain quantum field theories, the Kreimer-Connes Hopf-algebraic approach to renormalization reduces the Dyson-Schwinger equations to a system of non-linear ordinary differential equations for the expansion coefficients of the renormalized Green's ...
Michael Borinsky, Gerald V. Dunne
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Geometry of transcendental singularities of complex analytic functions and vector fields

Complex Manifolds
On Riemann surfaces MM, there exists a canonical correspondence between a possibly multivalued function ΨX{\Psi }_{X} whose differential is single-valued (i.e. an additively automorphic singular complex analytic function) and a vector field XX.
Alvarez-Parrilla Alvaro, Muciño-Raymundo Jesús   +1 more
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Elementary Abelianp-extensions of algebraic function fields

Manuscripta Mathematica, 1991
Let \(K\) be a field of characteristic \(p >0\), and let \(F/K\) be an algebraic function field. If \(E/F\) is an elementary abelian Galois extension with Galois group of order \(p^ n\) then \(E\) can be generated over \(F\) by an element \(y\) whose minimal polynomial is of the form \(T^{p^ n}-T-y\).
Garcia, Arnaldo, Sitchtenoth, Henning
openaire   +2 more sources

Closed analytical expression for the electric field profile in a loaded rf structure with arbitrarily varying v_{g} and R^{′}/Q

Physical Review Special Topics. Accelerators and Beams, 2000
The design of a detuned and damped accelerating structure implies variations in the geometry which induce, in turn, a variation of the group velocity v_{g} and the impedance per unit length R^{′}, divided by the quality factor Q.
G. Guignard, J. Hagel
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Numerical study for the BVP of the liquid film flow over an unsteady stretching sheet with thermal radiation and magnetic field

Boundary Value Problems, 2018
In this paper, we introduce a method based on replacement of the unknown function by truncated series of the well-known shifted Chebyshev (of third-kind) expansion of functions. We give an approximate formula for the integer derivative of this expansion.
M. M. Khader
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Quantum inhomogeneous field theory: Unruh-like effects and bubble wall friction

Journal of High Energy Physics
In this paper, we study a free scalar field in a specific (1+1)-dimensional curved spacetime. By introducing an algebraic state that is locally Hadamard, we derive the renormalized Wightman function and explicitly calculate the covariantly conserved ...
Jeongwon Ho, O-Kab Kwon, Sang-Heon Yi
doaj   +1 more source

A Comprehensive Comparison of Far-Field and Near-Field Imaging Radiometry in Synthetic Aperture Interferometry

Remote Sensing
Synthetic aperture interferometry (SAI) is a signal processing technique that mixes the signals collected by pairs of elementary antennas to obtain high-resolution images with the aid of a computer.
Eric Anterrieu, Louise Yu, Nicolas Jeannin   +2 more
doaj   +1 more source