Results 261 to 270 of about 3,838,081 (296)

Radial solutions for the -Laplacian equation

Nonlinear Analysis: Theory, Methods & Applications, 2009
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Bachar, Imed, Ben Othman, Sonia, Mâagli, Habib   +2 more
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On the numerical solution of schroedinger's radial equation

Journal of Computational Physics, 1974
Abstract Higher-order difference schemes are considered for the numerical solution of Schroedinger's radial equation. They are a family of difference equations which are extensions of the well-known Numerov difference equation and give highly convergent approximate solutions, the least being O(h6) compared to O(h4) in the Numerov equation.
Hajj, F. Y., Kobeisse, H., Nassif, N. R.
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Singular limit of radial solutions in an annulus

Asymptotic Analysis, 2007
In this paper we study the radial solutions of the problem [Formula: see text] where Ω is an annulus of R N , N≥2 and λ is close to zero. Among the other results we show the existence of a singular limit and some ...
GROSSI, Massimo, GLADIALI, Francesca Maria   +1 more
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Exact solutions for radial SchrÖdinger equations

International Journal of Theoretical Physics, 1995
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Vanden Berghe, G., De Meyer, H., van Daele, M.   +2 more
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RADIAL SOLUTIONS FOR WEIGHTED SEMILINEAR EQUATIONS

Communications in Contemporary Mathematics, 2002
In this paper we prove the exact cut-off between existence and nonexistence of radial solutions in a class of problems of the Brezis–Nirenberg type. We obtain this by studying the existence/nonexistence of positive solutions in [Formula: see text] for -vtt+¼v=vp-1 +λe-ctv, for different values of the parameters c>0 and λ, for p≥2.
Catrina, Florin, Lavine, Richard
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A Minimal Solution to Radial Distortion Autocalibration

IEEE Transactions on Pattern Analysis and Machine Intelligence, 2011
Simultaneous estimation of radial distortion, epipolar geometry, and relative camera pose can be formulated as a minimal problem and solved from a minimal number of image points. Finding the solution to this problem leads to solving a system of algebraic equations.
Zuzana Kukelova, Tomás Pajdla
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Radial and non radial solutions for Hardy–Hénon type elliptic systems

Calculus of Variations and Partial Differential Equations, 2009
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M. Calanchi, B. Ruf
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Radial solution of the Logarithmic Laplacian system

Applied Mathematics-A Journal of Chinese Universities
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Zhang, Li-hong, Wang, Guo-tao, Nie, Xiao-feng, Ahmad, Bashir   +3 more
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Radial Solutions: The ODE Method

1997
In this chapter, we consider the equation $$ - \Delta u + f(r,u)\quad {\text{in}}\;{{\mathbb{R}}^{N}}, $$ (19.1) where we denote r = |x|.
I. Kuzin, S. Pohozaev
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Radially Stable Periodic Solutions for Radially Symmetric Keplerian-Like Systems

Journal of Dynamical and Control Systems, 2016
In this paper, the author considers a planar system of Kepler type with radial symmetry and \(T\)-periodic time dependence given by \[ \ddot x+f(t,|x|)\frac{x}{|x|}=0.\tag{1} \] The typical model is \(f(t,r)=\frac{h(t)}{r^\alpha}-e(t)\) with \(\alpha>0\) and \(h(t),e(t)\) \(T\)-periodic functions.
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