Results 11 to 20 of about 8,367 (202)

Radial symmetry and monotonicity for an integral equation

Journal of Mathematical Analysis and Applications, 2008
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Ma, Li, Chen, Dezhong
openaire   +3 more sources

High-order conservative reconstruction schemes for finite volume methods in cylindrical and spherical coordinates [PDF]

, 2014
High-order reconstruction schemes for the solution of hyperbolic conservation laws in orthogonal curvilinear coordinates are revised in the finite volume approach. The formulation employs a piecewise polynomial approximation to the zone-average values to
Mignone, A.
core   +2 more sources

A new variational approach to the stability of gravitational systems [PDF]

, 2009
We consider the three dimensional gravitational Vlasov Poisson system which describes the mechanical state of a stellar system subject to its own gravity.
A. Alvino, A.M. Fridmann, A.V. Antonov, A.V. Antonov, C. Marchioro, C.S. Gardner, D. Gillon, D. Lynden-Bell, D. Serre, E.H. Lieb, Florian Méhats, G. Wolansky, G. Wolansky, H. Wiechen, H.E. Kandrup, H.E. Kandrup, J. Batt, J. Binney, J. Dolbeault, J. Perez, J. Schaeffer, J. Schaeffer, J.-F. Sygnet, J.-J. Aly, J.P. Doremus, K. Pfaffelmoser, M. Hadźić, M. Lemou, M. Lemou, M. Lemou, M. Lemou, Mohammed Lemou, P.-H. Chavanis, P.-L. Lions, P.-L. Lions, P.-L. Lions, Pierre Raphaël, T. Cazenave, V.I. Arnold, V.I. Arnold, V.I. Arnold, Y. Guo, Y. Guo, Y. Guo, Y. Guo, Y. Guo, Y. Guo, Y.-H. Wan, Z. Lin, Z. Lin, Z. Lin, Ó. Sánchez   +51 more
core   +8 more sources

Characterization of radially symmetric finite time blowup in multidimensional aggregation equations, [PDF]

, 2011
This paper studies the transport of a mass $\mu$ in $\real^d, d \geq 2,$ by a flow field $v= -\nabla K*\mu$.
Bertozzi, Andrea L., Garnett, John B., Laurent, Thomas   +2 more
core   +5 more sources

On the moving plane method for boundary blow-up solutions to semilinear elliptic equations

Advances in Nonlinear Analysis, 2018
We consider weak solutions to -Δ⁢u=f⁢(u){-\Delta u=f(u)} on Ω1∖Ω0{\Omega_{1}\setminus\Omega_{0}}, with u=c≥0{u=c\geq 0} in ∂⁡Ω1{\partial\Omega_{1}} and u=+∞{u=+\infty} on ∂⁡Ω0{\partial\Omega_{0}}, and we prove monotonicity properties of the solutions via
Canino Annamaria, Sciunzi Berardino, Trombetta Alessandro   +2 more
doaj   +1 more source

On the symmetry of minimizers in constrained quasi-linear problems [PDF]

, 2010
We provide a simple proof of the radial symmetry of any nonnegative minimizer for a general class of quasi-linear minimization problems.Comment: 18 ...
Squassina, Marco
core   +1 more source

Structural and dynamical uncertainties in modeling axisymmetric elliptical galaxies [PDF]

, 1996
Quantitative dynamical models of galaxies require deprojecting the observed surface brightness to determine the luminosity density of the galaxy. Existing deprojection methods for axisymmetric galaxies assume that a unique deprojection exists for any ...
Kochanek, Christopher S., Romanowsky, Aaron J.   +1 more
core   +5 more sources

Radial Symmetry and Monotonicity Results for an Integral Equation

, 2004
In this paper, we consider radial symmetry property of positive solutions of an integral equation arising from some higher order semi-linear elliptic equations on the whole space $\mathbf{R}^n$. We do not use the usual way to get symmetric result by using moving plane method.
Ma, Li, Chen, DeZhong
openaire   +2 more sources

Analytic Inversion of Emission Lines of Arbitrary Optical Depth for the Structure of Supernova Ejecta [PDF]

, 2000
We derive a method for inverting emission line profiles formed in supernova ejecta. The derivation assumes spherical symmetry and homologous expansion (i.e., $v(r) \propto r$), is analytic, and even takes account of occultation by a pseudo-photosphere ...
Adam Fisher, Alexei V. Filippenko, Baron E., Claes Fransson, David Branch, Deaton J., E. Baron, George Sonneborn, J. C. Wheeler, Jennifer Millard, Kazuhito Hatano, M. M. Phillips, N. B. Suntzeff, Nino Panagia, P. M. Challis, R. P. Kirshner, R. V. Wagoner, Sasaki M.   +17 more
core   +2 more sources

Persistence of translational symmetry in the BCS model with radial pair interaction [PDF]

, 2018
We consider the two-dimensional BCS functional with a radial pair interaction. We show that the translational symmetry is not broken in a certain temperature interval below the critical temperature.
Deuchert, Andreas, Geisinger, Alissa, Hainzl, Christian, Loss, Michael   +3 more
core   +4 more sources