[unknown]
Т.Г. Плетнева, С.Д. Эйдельман (1973)
Matematiceskie issledovanija
Erika Battaglia, Stefano Biagi, Andrea Bonfiglioli (0)
Annales de l’institut Fourier
Al-Refai, Mohammed, Katatbeh, Qutaibeh (2006)
International Journal of Mathematics and Mathematical Sciences
G. Métivier (1975/1976)
Séminaire Équations aux dérivées partielles (Polytechnique)
Dinca, George, Matei, Pavel (2007)
Electronic Journal of Differential Equations (EJDE) [electronic only]
S. Hildebrandt, K.-O. Widman (1979)
Journal für die reine und angewandte Mathematik
Hassen Aydi, Etienne Sandier (2009)
Annales de l'I.H.P. Analyse non linéaire
Detlef Müller, Christoph Thiele (2007)
Studia Mathematica
Let L be the distinguished Laplacian on certain semidirect products of ℝ by ℝⁿ which are of ax + b type. We prove pointwise estimates for the convolution kernels of spectrally localized wave operators of the form for arbitrary time t and arbitrary λ > 0, where ψ is a smooth bump function supported in [-2,2] if λ ≤ 1 and in [1,2] if λ ≥ 1. As a corollary, we reprove a basic multiplier estimate of Hebisch and Steger [Math. Z. 245 (2003)] for this particular class of groups, and derive Sobolev...
Gerd Grubb (1973)
Annales de l'institut Fourier
Let be a order differential operator in a hermitian vector bundle over a compact riemannian manifold with boundary ; and denote by the realization defined by a normal differential boundary condition (, Cauchy data). We characterize, by an explicit condition on and near , the realizations for which there exists an integro-differential sesquilinear form on such that on ; moreover we show that these are exactly the realizations satisfying a weak semiboundedness estimate:...
Salvatore Leonardi (2002)
Commentationes Mathematicae Universitatis Carolinae
Let be an open bounded set in , with boundary, and (, ) be a weighted Morrey space. In this note we prove a weighted version of the Miranda-Talenti...
Guozhen Lu (1992)
Revista Matemática Iberoamericana
In this paper we mainly prove weighted Poincaré inequalities for vector fields satisfying Hörmander's condition. A crucial part here is that we are able to get a pointwise estimate for any function over any metric ball controlled by a fractional integral of certain maximal function. The Sobolev type inequalities are also derived. As applications of these weighted inequalities, we will show the local regularity of weak solutions for certain classes of strongly degenerate differential operators formed...
Elisabetta Rocca (2005)
Applications of Mathematics
This work is concerned with the study of an initial boundary value problem for a non-conserved phase field system arising from the Penrose-Fife approach to the kinetics of phase transitions. The system couples a nonlinear parabolic equation for the absolute temperature with a nonlinear hyperbolic equation for the phase variable , which is characterized by the presence of an inertial term multiplied by a small positive coefficient . This feature is the main consequence of supposing that the response...
F. Colombini, E. Jannelli, S. Spagnolo (1983)
Annali della Scuola Normale Superiore di Pisa - Classe di Scienze
Medková, Dagmar (2004)
Abstract and Applied Analysis
Manfred König (1978)
Mathematische Zeitschrift
Hermann Sohr (1983)
Mathematische Zeitschrift
М.И. Вишик, А.В. Фурсиков (1974)
Matematiceskij sbornik
И.Н. Тавхелидзе (1982)
Matematiceskij sbornik
Н.М. Ивочкина (1980)
Zapiski naucnych seminarov Leningradskogo
А.В. Иванов (1977)
Zapiski naucnych seminarov Leningradskogo