Results 111 to 120 of about 10,375,970 (302)

Cellular Automata-Based Methods for the Construction of Mutually Unbiased Bases

open access: yesMathematics
Mutually unbiased bases (MUBs) are essential tools in quantum information science, with applications in state tomography, quantum cryptography, and quantum error correction.
Andrés García Sandoval   +2 more
doaj   +1 more source

Competitive Equilibria in Semi-Algebraic Economies [PDF]

open access: yes
This paper examines the equilibrium correspondence in Arrow-Debreu exchange economies with semi-algebraic preferences. We show that a generic semi-algebraic exchange economy gives rise to a square system of polynomial equations with finitely many ...
Karl Schmedders, Felix Kuber
core  

Factoring multivariate polynomials over algebraic number fields

open access: yes, 1976
The algorithm for factoring polynomials over the integers by Wang and Rothschild is generalized to an algorithm for the irreducible factorization of multivariate polynomials over any given algebraic number field.
Paul S. Wang
core   +1 more source

Class numbers of algebraic number fields of Eisenstein type, II [PDF]

open access: yes, 1974
Let K be an algebraic number field, of degree n, with a completely ramifying prime p, and let t be a common divisor of n and (p − 1)2. Then it is proved that if K does not contain the unique subfield, of degree t, of the p-th cyclotomic number field ...
Ishida, Makoto
core   +1 more source

Research on Heat Transfer Enhancement of Spiral Grooved Tube Heat Exchangers Based on CFD and Artificial Intelligence

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Driven by the energy crisis and carbon neutrality goals, high‐efficiency heat exchange equipment has become a core demand in the industrial sector. The spiral grooved double‐pipe heat exchanger exhibits significant heat transfer enhancement advantages, yet it requires balancing heat transfer efficiency and pressure loss.
Yueyun Yang, Wei Li, Xiuzhi Xi, Neng Gao
wiley   +1 more source

On plane polynomial vector fields and the Poincare problem

open access: yesElectronic Journal of Differential Equations, 2002
In this paper we address the Poincare problem, on plane polynomial vector fields, under some conditions on the nature of the singularities of invariant curves.
M'hammed El Kahoui
doaj  

A Fourier transform differentiator operator

open access: yesResults in Physics
By utilizing the Fourier transform, we present a practical method for evaluating a function of a derivative applied to any other arbitrary function of a single complex variable.
Blanca L. Moreno-Ley   +3 more
doaj   +1 more source

A note on Artin's conjecture in algebraic number fields [PDF]

open access: yes, 1986
Employing a technique introduced by Gallagher, a simple derivation is given of Montgomery's version of the large sieve in the setting of an algebraic number field of finite degree over the rationals.
Hinz, Jürgen G
core   +1 more source

Bioconvective Unsteady Casson Hybrid Nanofluid Flow on a Variable Darcy Regime Between Two Rotating Disks With Variable Heat Source

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT This study carries significant consequences in various engineering applications, such as cooling rotating disk surfaces, improving chemical reactor performance, and designing filtration systems. Considering these main applications in view, the aim of this study is to investigate time‐dependent Casson hybrid nanofluid flow on a permeable ...
Ebrahem A. Algehyne   +6 more
wiley   +1 more source

Killing vector fields of locally rotationally symmetric Bianchi type V spacetime

open access: yesScientific Reports
The classification of locally rotationally symmetric Bianchi type V spacetime based on its killing vector fields is presented in this paper using an algebraic method.
Shakeel Ahmad   +4 more
doaj   +1 more source

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