Results 21 to 30 of about 1,921,425 (303)
Transcendental equation for the Schrödinger equation [PDF]
Mathematics of Computation, 1960 side of eq. (4). The hypergeometric function appearing in eq. (4) can be computed as described above but convergence is slow for values of x close to unity, and in this case it may be desirable to compute the functions differently [4]. A subroutine [5] has been written for the IBM 704 to calculate the toroidal harmonics using the methods described here.
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FOURIER PROBLEM FOR WEAKLY NONLINEAR EVOLUTION INCLUSIONS WITH FUNCTIONALS
Journal of Optimization, Differential Equations and Their Applications, 2019 The Fourier problem or, in other words, the problem without initial conditions for evolution equations and inclusions arise in modeling different nonstationary processes in nature, that started a long time ago and initial conditions do not affect on them
Mykola M. Bokalo, Iryna V. Skira
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The Existence Result for a p-Kirchhoff-Type Problem Involving Critical Sobolev Exponent
Journal of Function Spaces, 2023 In this paper, by using the mountain pass theorem and the concentration compactness principle, we prove the existence of a positive solution for a p-Kirchhoff-type problem with critical Sobolev exponent.
Hayat Benchira +3 more
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Formalized Mathematics, 2017 SummaryIn this article we formalize several basic theorems that correspond to Pell’s equation. We focus on two aspects: that the Pell’s equationx2−Dy2= 1 has infinitely many solutions in positive integers for a givenDnot being a perfect square, and that based on the least fundamental solution of the equation when we can simply calculate algebraically ...
Marcin Acewicz, Karol Pak
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Journal of Forest Science, 2023 The most crucial individual tree variables in forest management are diameter at breast height (DBH) and height of trees (H). Projection of stand development over time relies on accurate height-diameter functions.
Vladimir Tanovski +3 more
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On global regularity of 2D generalized magnetohydrodynamic equations [PDF]
, 2013 In this article we study the global regularity of 2D generalized magnetohydrodynamic equations (2D GMHD), in which the dissipation terms are –ν(–Δ)αu and –κ(–Δ)βb. We show that smooth solutions are global in the following three cases: α≥1/2, β≥1; 0≤α≤1/2,
Tran, Chuong Van +3 more
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Planta Daninha, 2009 Uma das áreas da matologia (herbologia em Portugal) que tem avançado nas pesquisas científicas em Portugal e no Brasil nas últimas três décadas é a de nível de prejuízo das infestantes às culturas agrícolas.
J.M. Portugal, R.A. Vidal
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Equations and inequalities with parameter
Lietuvos Matematikos Rinkinys, 2021 In this paper there are clarified a few principal concepts that are then being used to explain the process of solving and analysing equations and inequalities with parameter.
Sergejus Sokolovas, Eglė Sokolovaitė
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On reducing a system of equations to a single equation
Proceedings of the 2004 international symposium on Symbolic and algebraic computation, 2004 For a system of polynomial equations over Q_p we present an efficient construction of a single polynomial of quite small degree whose zero set over Q_p coincides with the zero set over Q_p of the original system. We also show that the polynomial has some other attractive features such as low additive and straight-line complexity.<br /> <br ...
Gudmund Skovbjerg Frandsen +1 more
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Body Weight Prediction from Linear Measurements of Icelandic Foals: A Machine Learning Approach
Animals, 2022 Knowledge of the body weight of horses permits breeders to provide appropriate feeding and care regimen and allows veterinarians to monitor the animals’ health.
Alicja Satoła +3 more
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