Results 61 to 70 of about 12,103,103 (313)

Turán-Type Inequalities for Bessel, Modified Bessel and Kr ̈tzel Functions

open access: yesJournal of Kufa for Mathematics and Computer, 2018
We establish Turán-type inequalities for Bessel functions, modified Bessel functions, Kr ̈tzel function and Beta function, by using a new form of Cauchy–Bunyakovsky–Schwarz inequality.
Piyush Kumar Bhandari, S. K. Bissu
doaj   +1 more source

A Neumann series of Bessel functions representation for solutions of perturbed Bessel equations [PDF]

open access: yes, 2016
A new representation for a regular solution of the perturbed Bessel equation of the form Lu=-u″+l(l+1)x2+q(x)u=ω2u $ Lu=-u^{\prime \prime }+\left( \frac{l(l+1)}{x^{2}}+q(x)\right) u=\omega ^{2}u $ is obtained.
V. Kravchenko   +2 more
semanticscholar   +1 more source

Representation of solutions to the one-dimensional Schrödinger equation in terms of Neumann series of Bessel functions [PDF]

open access: yesApplied Mathematics and Computation, 2015
A new representation of solutions to the equation −y′′+q(x)y=ω2y is obtained. For every x the solution is represented as a Neumann series of Bessel functions depending on the spectral parameter ω. Due to the fact that the representation is obtained using
V. Kravchenko, Luis J. Navarro, S. Torba
semanticscholar   +1 more source

Enhanced Tantalum Superconducting Resonator Performance via All‐Surface Organic Monolayer Passivation

open access: yesAdvanced Functional Materials, EarlyView.
The internal quality factor of tantalum superconducting resonators is significantly increased by ∼140% in the low photon regime by passivating their surfaces with a high‐quality alkene self‐assembled monolayer. Our methodology promises to enhance the performance of superconducting quantum circuits.
Harsh Gupta   +6 more
wiley   +1 more source

Basics of Bessel Functions [PDF]

open access: yes, 2018
This paper is a deep exploration of the project Bessel Functions by Martin Kreh of Pennsylvania State University. We begin with a derivation of the Bessel functions Ja(x) and Ya(x), which are two solutions to Bessel’s differential equation.
Deal, Joella Rae
core   +2 more sources

Topology‐Orchestrated Multi‐physical Energy Control in Turtle Shell‐Inspired Metamaterials

open access: yesAdvanced Materials, EarlyView.
A turtle shell‐inspired lattice metamaterial efficiently manages acoustic, fluid‐thermal, and mechanical energy flows simultaneously. The unique hybrid‐coupling architecture achieves superior sound attenuation via pore‐cavity resonance, facilitates effective airflow transport, and maximizes mechanical energy absorption through multistage cell ...
Xi Wang   +3 more
wiley   +1 more source

On the zeros of the Macdonald functions [PDF]

open access: yesOpuscula Mathematica, 2019
We are concerned with the zeros of the Macdonald functions or the modified Bessel functions of the second kind with real index. By using the explicit expressions for the algebraic equations satisfied by the zeros, we describe the behavior of the zeros ...
Yuji Hamana   +2 more
doaj   +1 more source

Testing and Simulation of Multilayer Polyvinylidene Fluoride‐Based Piezoelectric Energy Harvester Devices

open access: yesAdvanced Materials Technologies, EarlyView.
The study considers the use of polymer/dielectric‐based multilayers piezoelectric Energy Harvesters (EH) to produce an output voltage and current, by exploiting the mechanical energy provided by human organs movements. In particular, the heart motion is considered from the kinematic viewpoint, and a multiphysics theoretical model is developed to assess
Hamdi Ezzin   +5 more
wiley   +1 more source

FOURIER-BESSEL LIPSCHITZ FUNCTIONS IN THE SPACE LP [PDF]

open access: yes, 2016
In this paper, we obtain an analog of Youniss Theorem 5.2 in [5] forthe generalized Fourier-Bessel transform on the real line for functions satisfying the Fourier-Bessel Lipschitz condition in the space ...
Daher, Radouan   +2 more
core  

Some Integrals Involving Bessel Functions [PDF]

open access: yes, 1994
A number of new definite integrals involving Bessel functions are presented. These have been derived by finding new integral representations for the product of two Bessel functions of different order and argument in terms of the generalized ...
Glasser, M.L., Montaldi, E.
core   +1 more source

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