Results 1 to 10 of about 5,525 (89)
IET Microwaves, Antennas &Propagation, Volume 17, Issue 15, Page 1093-1105, December 2023., 2023 The authors investigate the line source diffraction by a circular strip with different impedance value on inner and outer surfaces. As it is noticed, the resonance value becomes higher for the boundary condition corresponding to material in between PEC and PMC.
Vasil Tabatadze +2 more
wiley +1 more source
Parameter and q asymptotics of Lq‐norms of hypergeometric orthogonal polynomials
International Journal of Quantum Chemistry, Volume 123, Issue 2, January 15, 2023., 2023 The weighted Lq‐norms of orthogonal polynomials are determined when q and the polynomial's parameter tend to infinity. They are given in this work by the leading term of the q and parameter asymptotics of the corresponding quantities of the associated probability density. These results are not only interesting per se, but also because they control many
Nahual Sobrino, Jesus S. Dehesa
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Onset of Convection in Rotating Spherical Shells: Variations With Radius Ratio
Earth and Space Science, Volume 10, Issue 1, January 2023., 2023 Abstract Convection in rotating spherical layers of fluid is ubiquitous in spherical astrophysical objects like planets and stars. A complete understanding of the magnetohydrodynamics requires understanding of the linear problem—when convection onsets in these systems.
A. Barik +4 more
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Journal of Applied Mathematics, Volume 2023, Issue 1, 2023., 2023 The transient creeping motion of two rigid spheres oscillating in a boundless viscous fluid beneath the impact of the magnetic field is investigated. There is no slippage associated with a Stokes flow on the two rigid spherical surfaces with different sizes and radii.
Shreen El-Sapa +2 more
wiley +1 more source
Bounds for extreme zeros of some classical orthogonal polynomials [PDF]
, 2011 We derive upper bounds for the smallest zero and lower bounds for the largest zero of Laguerre, Jacobi and Gegenbauer polynomials. Our approach uses mixed three term recurrence relations satisfied by polynomials corresponding to different parameter(s ...
Driver, K., Jordaan, K.
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Advances in Mathematical Physics, Volume 2023, Issue 1, 2023., 2023 This paper uses Müntz orthogonal functions to numerically solve the fractional Bagley–Torvik equation with initial and boundary conditions. Müntz orthogonal functions are defined on the interval [0, 1] and have simple and distinct real roots on this interval.
S. Akhlaghi +3 more
wiley +1 more source
Journal of Function Spaces, Volume 2023, Issue 1, 2023., 2023 This article is devoted to deriving a new linearization formula of a class for Jacobi polynomials that generalizes the third‐kind Chebyshev polynomials class. In fact, this new linearization formula generalizes some existing ones in the literature. The derivation of this formula is based on employing a new moment formula of this class of polynomials ...
W. M. Abd-Elhameed +3 more
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Contributions of K0∗1430 and K0∗1950 in the Charmed Three‐Body B Meson Decays
Advances in High Energy Physics, Volume 2023, Issue 1, 2023., 2023 In this work, we investigate the resonant contributions of K0∗1430 and K0∗1950 in the three‐body B(s)⟶D(s)Kπ within the perturbative QCD approach. The form factor Fkπ(s) is adopted to describe the nonperturbative dynamics of the S‐wave Kπ system. The branching ratios of all concerned decays are calculated and predicted to be in the order of 10−10 to 10−
Bo-Yan Cui +2 more
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New connection formulae for some q-orthogonal polynomials in q-Askey scheme [PDF]
, 2007 New nonlinear connection formulae of the q-orthogonal polynomials, such continuous q-Laguerre, continuous big q-Hermite, q-Meixner-Pollaczek and q-Gegenbauer polynomials, in terms of their respective classical analogues are obtained using a special ...
A Yanallah +7 more
core +3 more sources
Runge-Kutta-Gegenbauer explicit methods for advection-diffusion problems [PDF]
, 2019 In this paper, Runge-Kutta-Gegenbauer (RKG) stability polynomials of arbitrarily high order of accuracy are introduced in closed form. The stability domain of RKG polynomials extends in the the real direction with the square of polynomial degree, and in ...
O'Sullivan, Stephen
core +3 more sources