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19932020
most citedHabitable Zones Around Main-Sequence Stars: New Estimates

1.6k citations

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17 papers · 1 filter

math.AP2014

Sets of unique continuation for heat equation

Nikolai Nadirashvili, Nadezda Varkentina

We study nodal lines of solutions to the heat equations. We are interested in the global geometry of nodal sets, in the whole domain of definition of the solution. The local struct…

math.AP2013★ 7 cited

A well-posedness result for hyperbolic operators with Zygmund coefficients

Ferruccio Colombini, Daniele Del Santo, Francesco Fanelli +1

In this paper we prove an energy estimate with no loss of derivatives for a strictly hyperbolic operator with Zygmund continuous second order coefficients both in time and in space…

math.AP2013★ 14 cited

Time-dependent loss of derivatives for hyperbolic operators with non regular coefficients

Ferruccio Colombini, Daniele Del Santo, Francesco Fanelli +1

In this paper we will study the Cauchy problem for strictly hyperbolic operators with low regularity coefficients in any space dimension . We will suppose the coefficients…

math.AP2013★ 9 cited

Cauchy problem for effectively hyperbolic operators with triple characteristics of variable multiplicity

Enrico Bernardi, Antonio Bove, Vesselin Petkov

We study a class of third order hyperbolic operators in with triple characteristics at $ρ= (0, x_0, ξ), ξ\in {…

math.AP2012★ 82 cited

Global wellposedness to incompressible inhomogeneous fluid system with bounded density and non-Lipschitz velocity

Jingchi Huang, Marius Paicu, Ping Zhang

In this paper, we first prove the global existence of weak solutions to the d-dimensional incompressible inhomogeneous Navier-Stokes equations with initial data in critical Besov s…

math.AP2011

Cauchy problem for semilinear wave equation with time-dependent metrics

Yavar Kian

We establish the existence of weak solutions of the semilinear wave equation where is equal to outside a co…

math.AP2011★ 4 cited

Bifurcation from semi-trivial standing waves and ground states for a system of nonlinear Schrödinger equations

Mathieu Colin, Masahito Ohta

We consider a system of nonlinear Schrödinger equations related to the Raman amplification in a plasma. We study the orbital stability and instability of standing waves bifurcating…

math.AP2010★ 1 cited

Instability of bound states for abstract nonlinear Schrödinger equations

Masahito Ohta

We study the instability of bound states for abstract nonlinear Schrödinger equations. We prove a new instability result for a borderline case between stability and instability. We…

math.AP2010★ 24 cited

Derivation and analysis of a new 2D Green-Naghdi system

Samer Israwi

We derive here a variant of the 2D Green-Naghdi equations that model the propagation of two-directional, nonlinear dispersive waves in shallow water. This new model has the same ac…

math.AP2010★ 109 cited

Energy Dissipation and Regularity for a Coupled Navier-Stokes and Q-Tensor System

Marius Paicu, Arghir Zarnescu

We study a complex non-newtonian fluid that models the flow of nematic liquid crystals. The fluid is described by a system that couples a forced Navier-Stokes system with a parabol…

math.AP2009

Analytic continuation of the resolvent of the Laplacian and the dynamical zeta function

Vesselin Petkov, Luchezar Stoyanov

Let be the abscissa of absolute convergence of the dynamical zeta function for several disjoint strictly convex compact obstacles $K_i \subset \R^N, i = 1,..., κ_0…

math.AP2008★ 28 cited

Existence and stability of noncharacteristic boundary-layers for the compressible Navier-Stokes and viscous MHD equations

Olivier Gues, Guy Metivier, Mark Williams +1

For a general class of hyperbolic-parabolic systems including the compressible Navier-Stokes and compressible MHD equations, we prove existence and stability of noncharacteristic v…

math.AP2008★ 1 cited

Inégalités de Poincaré cinétiques

Pascal Azerad, Stéphane Brull

In this note we prove Poincaré type inequalities for a family of kinetic equations. We apply this inequality to the variational solution of a linear kinetic model.

math.AP2007★ 20 cited

On The Local Well-Posedness for Some Systems of Coupled KdV Equations

Borys Alvarez-Samaniego, Xavier Carvajal

Using the theory developed by Kenig, Ponce, and Vega, we prove that the Hirota-Satsuma system is locally well-posed in Sobolev spaces for…

math.AP2007★ 315 cited

Large time existence for 3D water-waves and asymptotics

Borys Alvarez-Samaniego, David Lannes

We rigorously justify in 3D the main asymptotic models used in coastal oceanography, including: shallow-water equations, Boussinesq systems, Kadomtsev-Petviashvili (KP) approximati…

math.AP2006★ 32 cited

WKB analysis for nonlinear Schrödinger equations with potential

Rémi Carles

We justify the WKB analysis for the semiclassical nonlinear Schrödinger equation with a subquadratic potential. This concerns subcritical, critical, and supercritical cases as far…

math.AP2005★ 37 cited

Geometric optics and instability for semi-classical Schrodinger equations

Remi Carles

We prove some instability phenomena for semi-classical (linear or) nonlinear Schrodinger equations. For some perturbations of the data, we show that for very small times, we can ne…