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18 résultats avec le mot-clé: 'cauchy problem semilinear weakly hyperbolic equations hilbert spaces'

The Cauchy problem for semilinear weakly hyperbolic equations in Hilbert spaces

We list here some applications of Thms. 1,2 to concrete examples of Cauchy problems for partial differential equations.. Oleinik, [0]; see [D] for details) concerning

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An approximation theorem of Wong-Zakai type for stochastic Navier-Stokes equations

tion theorem for semilinear stochastic evolution equations in Hilbert spaces.. was

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The Cauchy problem for weakly hyperbolic systems

On the other hand, in [Br], M.D.Bronˇ stein has proved that the Cauchy problem for weakly hyperbolic equations and systems is well posed in Gevrey spaces G s for s ≤ 1+1/(m−1) where

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Some results of Gevrey and analytic regularity for semilinear weakly hyperbolic equations of Oleinik type

Some results of Gevrey and analytic regularity for semilinear weakly hyperbolic equations of Oleinik type.. Rendiconti del Seminario Matematico della Università di Padova, tome

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Time regularity of the solutions to second order hyperbolic equations

We consider the Cauchy problem for a second order weakly hyperbolic equation, with coefficients depending only on the time variable... By the Cauchy–Kovalevski theorem we know that

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Linear abstract integro-differential equations of hyperbolic type in Hilbert spaces

Linear abstract integro-differential equations of hyperbolic type in Hilbert spaces.. Rendiconti del Seminario Matematico della Università di Padova, tome 62

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On the wellposedness in the Gevrey classes of the Cauchy problem for weakly hyperbolic equations whose coefficients are Hölder continuous in $t$ and degenerate in $t = T$

KINOSHITA, On the wellposedness in the Gevrey classes of the Cauchy problem for weakly hyperbolic systems with Hölder continuous coefficients in t, preprint. [9]

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IV-Rentenanspruch bei Suchterkrankung

Bisher erhielten Suchtkranke nur dann eine IV-Rente, wenn die Abhängigkeit aufgrund einer anderen primären Krankheit (z. einer Persönlichkeits- störung) entstanden war.. Eine wegen

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Domain invariance for local solutions of semilinear evolution equations in Hilbert spaces

Finally, we would like to stress that this paper is restricted to Hilbert space settings for two main reasons: the use of maximal L 2 -regularity for solutions of linear

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Asymptotic behaviour of stochastic quasi dissipative systems

Cerrai, Stationary Hamilton–Jacobi equations in Hilbert spaces and applications to a stochastic optimal control problem..

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The geometric optics for a class of hyperbolic second order operators with Hölder continuous coefficients with respect to time

ZANGHIRATI, Fourier integral operators of infinite order on Gevrey spaces applications to the Cauchy problem for certain hyperbolic operators, J. CICOGNANI, The

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Stability for semilinear parabolic equations with decaying potentials in $\mathbb {R}^n$ and dynamical approach to the existence of ground states

Zhang, Existence of ground states for semilinear elliptic equations with decaying mass: a parabolic approach, C. Weissler, Semilinear evolution equations in Banach

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An  example  of  a  weakly  hyperbolic  Cauchy  problem  not  well  posed  in  C =

Let us finally emphasize that several necessary conditions, such as the Levi's condition, are known for the hyperbolicity of the equation uu-a(t) Uxx+b(t) ux=0,

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SOME FILIPPOV TYPE THEOREMS FOR MILD SOLUTIONS OF A SECOND-ORDER DIFFERENTIAL INCLUSION

We consider a Cauchy problem for a semilinear second-order differential inclusion in separable and non separable Banach spaces under Filippov type assumptions and prove the existence

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A Floquet-Liapunov theorem in Fréchet spaces

Though the Cauchy problem for linear equations, as above, could be studied yet by more advanced methods (referring to equations in locally convex spaces, cf. [2],

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On the  Cauchy  problem for finitely  degenerate  hyperbolic equations  of second order

This paper is devoted to the study of the Cauchy problem in C ~ and in the Gevrey classes for some second order degenerate hyperbolic equations with time dependent

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A degenerate parabolic-hyperbolic Cauchy problem with a stochastic force

Wittbold, The Cauchy problem for a conservation law with a multiplicative stochastic perturbation, Journal of Hyperbolic Differential Equations 09 (04) (2012) 661–709..

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OVATION: Oval variation, assessment, tracking, intensity, and online nowcasting

Figure 2 shows the results of correlating polar cap flux (from DMSP boundaries) with premidnight auroral power (from the UVI imager). Since all corre- lations reported are with

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