Results 61 to 70 of about 7,484 (167)
Computational and Mathematical Methods, Volume 2026, Issue 1, 2026.Nonlinear dispersion phenomena in liquid media often lead to the formation of localized structures such as compact wave packets and dispersion drops. The present investigation demonstrates that the proposed analytical framework yields accurate approximate solutions, successfully captures compacton‐like structures, and clearly reveals the critical ...
Yogeshwari F. Patel +3 more
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Padé approximation of Stieltjes series [PDF]
, 1975 Using Nuttall's compact formula for the [n, n − 1] Pad'e approximant, the authors show that there is a natural connection between the Padé approximants of a series of Stieltjes and orthogonal polynomials.
Allen, G.D +4 more
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The Astrophysical Journal, 2023 In this paper, using the latest Pantheon+ sample of Type Ia supernovae, baryon acoustic oscillation measurements, and observational Hubble data, we carry out a joint constraint on the Hubble constant H _0 , the spatial curvature Ω _K , and the sound ...
Kaituo Zhang +4 more
doaj +1 more source
International Journal of Energy Research, Volume 2026, Issue 1, 2026.Microgrids operating in islanded mode face significant frequency and voltage instability, particularly when dominated by inverter‐based renewable energy sources (RESs) with inherently low system inertia. This study presents a layered hierarchical control strategy that integrates three novel components: (1) an adaptive virtual synchronous generator (VSG)
Girmaw Teshager Bitew, Cheng Du
wiley +1 more source
How well can the concept of Padé approximant be generalized to the multivariate case? [PDF]
, 1999 What we know about multivariate Padé approximation has been developed in the last 25 years. In the next sections we compare and discuss many of these results. It will become clear that simple properties or requirements, such as the uniqueness of the Padé
Annie Cuyt +2 more
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Analytic approximate eigenvalues by a new technique. Application to sextic anharmonic potentials
Results in Physics, 2018 A new technique to obtain analytic approximant for eigenvalues is presented here by a simultaneous use of power series and asymptotic expansions is presented.
D. Diaz Almeida, P. Martin
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A Hybrid Laplace–Adomian Strategy for Nonlinear Fractional Volterra–Fredholm Equations
Journal of Mathematics, Volume 2026, Issue 1, 2026.This paper introduces an enhanced semianalytic method for solving nonlinear fractional Volterra–Fredholm integro‐differential equations (NFVFIDEs) by combining the Laplace transform with the regular Adomian decomposition method (ADM) and its accelerated variant (AADM).
Mohammed Z. Alqarni +3 more
wiley +1 more source
A New Special Function and Its Application in Probability
International Journal of Mathematics and Mathematical Sciences, 2018 In this note we present a new special function that behaves like the error function and we provide an approximated accurate closed form for its CDF in terms of both Chèbyshev polynomials of the first kind and the error function.
Zeraoulia Rafik +2 more
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International Journal for Numerical Methods in Engineering, Volume 126, Issue 22, 30 November 2025.ABSTRACT This study explores matrix‐free tangent evaluations in finite‐strain elasticity with the use of automatically generated code for the quadrature‐point level calculations. The code generation is done via automatic differentiation (AD) with AceGen.
Michał Wichrowski +4 more
wiley +1 more source
Modeling of a polymer 1x3 MMI power splitter for optical backplane [PDF]
, 2005 A 0.4 dB excess loss, 0.01 dB output channel imbalance polymer 1 x 3 MMI power splitter is modeled having linearly tapered input section suitable for use in an optical backplane connector. The device design was additionally optimized using FD-BPM to have
Rashed, AM, Selviah, DR
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