Results 81 to 90 of about 297,861 (287)
Nonexistence and Radial Symmetry of Positive Solutions of Semilinear Elliptic Systems
Discrete Dynamics in Nature and Society, 2009 Nonexistence and radial symmetry of positive solutions for a class of semilinear elliptic systems are considered via the method of moving spheres.
Zhengce Zhang, Liping Zhu
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Two-integral distribution functions for axisymmetric systems
, 2007 Some formulae are presented for finding two-integral distribution functions (DFs) which depends only on the two classical integrals of the energy and the magnitude of the angular momentum with respect to the axis of symmetry for stellar systems with ...
Jiang, Zhenglu, Ossipkov, Leonid
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Global existence in nonlinear hyperbolic thermoelasticity with radial symmetry [PDF]
Quarterly of Applied Mathematics, 2010 In this paper we consider a nonlinear system of hyperbolic thermoelasticity in two or three dimensions with Dirichlet boundary conditions in the case of radial symmetry. We prove the global existence of small, smooth solutions and the exponential stability.
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Advanced Functional Materials, EarlyView.An all‐in‐one analog AI accelerator is presented, enabling on‐chip training, weight retention, and long‐term inference acceleration. It leverages a BEOL‐integrated CMO/HfOx ReRAM array with low‐voltage operation (<1.5 V), multi‐bit capability over 32 states, low programming noise (10 nS), and near‐ideal weight transfer.
Donato Francesco Falcone +11 more
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Frontiers in Plant ScienceFloral symmetry plays an important role in the evolution and ecology of flowering plants, yet quantifying the symmetry of the perianth remains challenging.
Hongyu Yan +8 more
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Boundary value problems in time for wave equations on RN
International Journal of Mathematics and Mathematical Sciences, 1990 Let Lλ denote the linear operator associated with the radially symmetric form of the wave operator ∂t2−Δ+λ together with the side conditions of decay to zero as r=‖x‖→+∞ and T-periodicity in time.
M. W. Smiley, A. M. Fink
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Advanced Functional Materials, EarlyView.For the first time, a highly sensitive electrochemical biosensor based on SiO2‐based hairy particles with a grafted PDMAEMA polymer brush containing a quantifiable and large amount of immobilized Laccase is reported. The fabricated biosensor exhibits a sensitivity of 0.14 A·m⁻¹, a limit of detection (LOD) of 0.1 µm, and a detection range of 0.3–750 µm,
Pavel Milkin +7 more
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A note on radial nonlinear Schrodinger systems with nonlinearity spatially modulated
Electronic Journal of Differential Equations, 2008 First, we prove that for Schrodinger radial systems the polar angular coordinate must satisfy $heta'= 0$. Then using radial symmetry, we transform the system into a generalized Ermakov-Pinney equation and prove the existence of positive periodic ...
Juan Belmonte-Beitia
doaj
Magnetic Properties of a Superconductor with no Inversion Symmetry
, 2008 We study the magnetic properties of a superconductor in a crystal without $z \to -z$ symmetry, in particular how the lack of this symmetry exhibits itself.
DF. Agterberg +11 more
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Conservation laws and symmetries of semilinear radial wave equations
Journal of Mathematical Analysis and Applications, 2007 Classifications of symmetries and conservation laws are presented for a variety of physically and analytically interesting wave equations with power onlinearities in n spatial dimensions: a radial hyperbolic equation, a radial Schrodinger equation and its derivative variant, and two proposed radial generalizations of modified Korteweg--de Vries ...
Anco, Stephen C., Ivanova, Nataliya M.
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