Results 61 to 70 of about 2,722,837 (288)
Littlewood–Paley–Stein gk-functions for Fourier–Bessel expansions [PDF]
, 2010 gk-Functions related to the Poisson semigroup of Fourier–Bessel expansions are defined for each k⩾1. It is proved that these gk-functions are Calderón–Zygmund operators in the sense of the associated space of homogeneous type, hence their mapping ...
Roncal, Luz +3 more
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Conformal Reconfigurable Intelligent Surfaces: A Cylindrical Geometry Perspective
Advanced Electronic Materials, EarlyView.Cylindrical reconfigurable intelligent surfaces are explored for low‐complexity beam steering using one‐bit meta‐atoms. A multi‐level modeling approach, including optimization‐based synthesis, demonstrates that even minimal hardware can support directive scattering.
Filippo Pepe +4 more
wiley +1 more source
Қарағанды университетінің хабаршысы. Математика сериясы, 2020 In this paper, the systems with solutions in the form of degenerate hypergeometric Humbert functions of two variables reduced to Bessel functions of two variables are established and studied.
Zh.N. Tasmambetov, A.A. Issenova
doaj
Redheffer-Type Bounds of Special Functions
Mathematics, 2023 In this paper, we aim to construct inequalities of the Redheffer type for certain functions defined by the infinite product involving the zeroes of these functions.
Reem Alzahrani, Saiful R. Mondal
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Some Formulae on the Modified Bessel Functions [PDF]
, 1992 P(論文)A linear combination of the modified Bessel functions is a general solution of the Laplace differential equation under a boundary condition in the cylindrical co-ordinate system.
42251, 新谷, 敏朗
core
Some Integrals Involving Bessel Functions [PDF]
, 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.
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Recent Advances in Programmable Metasurfaces and Meta‐Devices
Advanced Electronic Materials, EarlyView.Programmable metasurfaces enable various novel functionalities by dynamically tuning electromagnetic wavefronts. This article provides a comprehensive review of recent advances in microwave and terahertz programmable metasurfaces, covering electrical, thermal, optical, and mechanical control mechanisms.
Linda Shao +4 more
wiley +1 more source
Laplace Transform Methods for Bessel and Modified Bessel Equations: Theory and Applications
AxiomsThis paper revisits the use of the Laplace transform in the study of Bessel and modified Bessel differential equations. Rather than presenting the method as a new alternative to the classical Frobenius approach, the paper is organized as a pedagogical ...
Osman Yürekli
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Advanced Electronic Materials, EarlyView.A compact QASRR‐based THz metamaterial absorber enables polarization‐insensitive dual‐band absorption and skin‐cancer‐related refractive‐index sensing through measurable resonance shifts. Field, surface‐current, and circuit analyses clarify the dual‐resonance mechanism, while StackNet‐assisted prediction accurately estimates the simulated absorption ...
Md. Murad Kabir Nipun +5 more
wiley +1 more source
Radii of γ-Spirallike of q-Special Functions
MathematicsThe geometric properties of q-Bessel and q-Bessel-Struve functions are examined in this study. For each of them, three different normalizations are applied in such a way that the resulting functions are analytic in the unit disk of the complex plane. For
Sercan Kazımoğlu
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