Results 21 to 30 of about 12,082,846 (215)

Kerr geodesics in horizon-penetrating Kerr coordinates: description in terms of Weierstrass functions [PDF]

open access: yesClassical and quantum gravity
We revisit the theory of timelike and null geodesics in the (extended) Kerr spacetime. This work is a sequel to a recent paper by Cieślik, Hackmann, and Mach, who applied the so-called Biermann–Weierstrass formula to integrate Kerr geodesic equations ...
Zuzanna Bakun   +4 more
semanticscholar   +1 more source

An Elementary Solution to a Duffing Equation

open access: yesThe Scientific World Journal, 2022
In this work, we study the Duffing equation. Analytical solution for undamped and unforced case is provided for any given arbitrary initial conditions.
Alvaro H. Salas
doaj   +1 more source

On Certain Generalizations of Rational and Irrational Equivariant Functions

open access: yesMathematics, 2022
In this paper, we address the case of a particular class of function referred to as the rational equivariant functions. We investigate which elliptic zeta functions arising from integrals of power of ℘, where ℘ is the Weierstrass ℘-function attached to a
Isra Al-Shbeil   +3 more
doaj   +1 more source

Modular Forms and Weierstrass Mock Modular Forms

open access: yesMathematics, 2016
Alfes, Griffin, Ono, and Rolen have shown that the harmonic Maass forms arising from Weierstrass ζ-functions associated to modular elliptic curves “encode” the vanishing and nonvanishing for central values and derivatives of twisted Hasse-Weil L ...
Amanda Clemm
doaj   +1 more source

A Characterization of Weierstrass Analytic Functions [PDF]

open access: yesProceedings of the National Academy of Sciences, 1965
The sum theorem and other results of dimension theory make it possible to characterize the graphs of Weierstrass analytic functions among the subsets of C2 (the set of all ordered pairs of complex numbers) without assuming local complex parametrizations and in fact without any reference to plane topology.
openaire   +2 more sources

On algebraic values of Weierstrass $\sigma$-functions [PDF]

open access: yesRendiconti Lincei, Matematica e Applicazioni, 2022
Suppose that \Omega is a lattice in the complex plane and let \sigma be the corresponding Weierstrass \sigma
Boxall, Gareth   +2 more
openaire   +2 more sources

ON WEIERSTRASS-STONE THEOREM FOR ALGEBRAS AND MODULES OF CONTINUOUS FUNCTIONS [PDF]

open access: yesDelta Journal of Science, 2005
This paper studies from the viewpoint of vector fibrations and vector spaces of cross-sections, endowed with appropriate topologies, the realm of ideas and results centered around the Weierstrass-Stone Theorem for algebras and modules of continuous ...
Siham J. Al. Sayyad
doaj   +1 more source

Hodge structures and Weierstrass σ-function [PDF]

open access: yesComptes Rendus. Mathématique, 2012
In this Note we introduce new definition of Hodge structures and show that R -Hodge structures are determined by R -linear operators that are annihilated by the ...
Banaszak, Grzegorz, Milewski, Jan
openaire   +3 more sources

Average linear approximations for smooth functions

open access: yesStatistica, 2007
Average linear approximations for smooth functions using empirical and Gaussian probabilities are introduced. The convergence of these approximations is shown to be uniform, in the sense of the Weierstrass approximation theorem.
Andrea Pallini
doaj   +1 more source

Cubic-quartic optical solitons with Kudryashov’s law of refractive index by F-expansions schemes

open access: yesResults in Physics, 2020
This work presents cubic-quartic optical soliton solutions to Kudryashov’s equation in polarization-preserving fibers. The integration is conducted with F-expansion scheme having four independent forms.
Gokhan Genc   +3 more
doaj   +1 more source

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