Results 21 to 30 of about 297,861 (287)
Comment on ``Strength and genericity of singularities in Tolman-Bondi-de Sitter collapse'' and a note on central singularities [PDF]
, 2001 It has been claimed that the Lemaitre-Tolman-Bondi-de Sitter solution always admits future-pointing radial time-like geodesics emerging from the shell-focussing singularity, regardless of the nature of the (regular) initial data. This is despite the fact
Bondi +10 more
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Plant Signaling & Behavior, 2023 Flower angle is crucially important for accurate pollination and flower protection against abiotic factors. Evolutionary factors shaping floral traits are particularly strong for bilaterally symmetric flowers because these flowers require more ...
Pavol Prokop +5 more
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Advances in Nonlinear Analysis, 2021 In this paper, we consider a class of semilinear elliptic equation with critical exponent and -1 growth. By using the critical point theory for nonsmooth functionals, two positive solutions are obtained. Moreover, the symmetry and monotonicity properties
Lei Chun-Yu, Liao Jia-Feng
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Reducing the Chern-Simons term by a symmetry [PDF]
, 1997 Reducing a 3-dimensional Chern-Simons term by a symmetry yields other topologically interesting structures. Specifically, reducing by radial symmetry results in a 1-dimensional quantum mechanical model, which has recently been used in an analysis of ...
Jackiw, R., Pi, S. -Y.
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Radial symmetry results for fractional Laplacian systems [PDF]
Nonlinear Analysis, 2016 19 ...
Liu, Baiyu, Ma, Li
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Radial solutions for fully nonlinear elliptic equations of Monge–Ampère type
Boundary Value Problems, 2021 First, the symmetry of classical solutions to the Monge–Ampère-type equations is obtained by the moving plane method. Then, the existence and nonexistence of radial solutions in a ball are got from the symmetry results.
Limei Dai, Huihui Cheng, Hongfei Li
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An improved discretization of Schrodinger-like radial equations [PDF]
, 2018 A new discretization of the radial equations that appear in the solution of separable second order partial differential equations with some rotational symmetry (as the Schrodinger equation in a central potential) is presented.
Campo, Javier, Laliena, Victor
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Photoconductive terahertz antenna with radial symmetry
Optical Terahertz Science and Technology, 2005 The use of coaxial waveguides with terahertz pulses requires the difficult excitation of the radially polarized fundamental mode of the waveguide. We propose a radially symmetric terahertz antenna and present simulations predicting the generation of a radially polarized beam.
Deibel, Jason A. +2 more
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Fast radial symmetry detection under affine transformations [PDF]
2012 IEEE Conference on Computer Vision and Pattern Recognition, 2012 The fast radial symmetry (FRS) transform has been very popular for detecting interest points based on local radial symmetry1. Although FRS delivers good performance at a relatively low computational cost and is very well suited for a variety of real-time computer vision applications, it is not invariant to perspective distortions.
null Jie Ni, M. K. Singh, C. Bahlmann
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The Spherical Harmonic Family of Beampatterns
Acoustics, 2022 The free space solution to the wave equation in spherical coordinates is well known as a separable product of functions. Re-examination of these functions, particularly the sums of spherical Bessel and harmonic functions, reveals behaviors which can ...
Kevin J. Parker, Miguel A. Alonso
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