Results 21 to 30 of about 537 (169)

Implementation Model of Gradient Optimization Algorithm for FAST Reflector Adjustment and Receiving Ratio

open access: yesTaiyuan Ligong Daxue xuebao, 2022
In view of the fact that the current automatic position adjustment model of Five-hundred-meter Aperture Spherical radio Telescope (FAST)main cable nodes and actuators is only limited to point-to-point model and lacks the establishment of dynamic change ...
Xuejun GUO   +4 more
doaj   +1 more source

Numerical spectra of the Laplacian for line bundles on Calabi-Yau hypersurfaces

open access: yesJournal of High Energy Physics, 2023
We give the first numerical calculation of the spectrum of the Laplacian acting on bundle-valued forms on a Calabi-Yau three-fold. Specifically, we show how to compute the approximate eigenvalues and eigenmodes of the Dolbeault Laplacian acting on bundle-
A. Ashmore   +3 more
doaj   +1 more source

Primality deterministic and primality probabilistic tests

open access: yesStatistica, 2007
In this paper the A. comments the importance of prime numbers in mathematics and in cryptography. He remembers the very important researches of Eulero, Fermat, Legen-re, Rieman and others scholarships.
Alfredo Rizzi
doaj   +1 more source

Depth Optimization of FLT-Based Quantum Inversion Circuit

open access: yesIEEE Access, 2023
Works on quantum computing and cryptanalysis have increased significantly in the past few years. Various constructions of quantum arithmetic circuits as one of the primary elements in the field have also been proposed. However, there have only been a few
Harashta Tatimma Larasati   +4 more
doaj   +1 more source

Can the Applied Optics Employ Modern Approaches Developed in Seismic Prospecting? A Review

open access: yesPhysics, 2022
The concept of infinitesimal elastic deformation and the theory of elastic seismic waves was formed in the first part of the 19th century and was based mainly on the Fermat, Huygens and Snell developments in the theory of optics.
Alexander Berkovitch, Lev V. Eppelbaum
doaj   +1 more source

The twentieth Fermat number is composite [PDF]

open access: yesMathematics of Computation, 1988
The twentieth Fermat number, F 20 = 2 2 20 + 1 {F_{20}
Young, Jeff, Buell, Duncan A.
openaire   +1 more source

Trigonometric Polynomial Solutions of Bernoulli Trigonometric Polynomial Differential Equations

open access: yesMathematics, 2022
We consider real trigonometric polynomial Bernoulli equations of the form A(θ)y′=B1(θ)+Bn(θ)yn where n≥2, with A,B1,Bn being trigonometric polynomials of degree at most μ≥1 in variables θ and Bn(θ)≢0.
Claudia Valls
doaj   +1 more source

Distribution of generalized Fermat prime numbers [PDF]

open access: yesMathematics of Computation, 2001
Summary: Numbers of the form \(F_{b,n}=b^{2^n}+1\) are called Generalized Fermat Numbers (GFN). A computational method for testing the probable primality of a GFN is described which is as fast as testing a number of the form \(2^m-1\). The theoretical distributions of GFN primes, for fixed \(n\), are derived and compared to the actual distributions ...
Dubner, Harvey, Gallot, Yves
openaire   +2 more sources

New factors of Fermat numbers [PDF]

open access: yesMathematics of Computation, 1995
Forty-six new factors of Fermat numbers are given, along with a summary of the search limits.
openaire   +1 more source

New Factors of Fermat Numbers [PDF]

open access: yesMathematics of Computation, 1964
From Table 1, in turn, we may compute [3], [4] the Hardy-Littlewood constants ha for a = =t5 and ? 10. Together with previously computed values, we may thus complete an 8D table of ha for a = -10(1)10 except for a = 47. The L+7(s), needed to fill this gap, may also be expressed in terms of I, (a) and R8( a), but this time the arguments a are not given ...
openaire   +2 more sources

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