Spectral perturbations in linear viscoelasticity of the Boltzmann type
Spectral properties of non-local uniformly-elliptic operators.
Spectral Properties of the Cauchy Operator and the Operator of Logarithmic Potential Type on L2 Space With Radial Weight
Spectral theory of SG pseudo-differential operators on
To every elliptic SG pseudo-differential operator with positive orders, we associate the minimal and maximal operators on , 1 < p < ∞, and prove that they are equal. The domain of the minimal ( = maximal) operator is explicitly computed in terms of a Sobolev space. We prove that an elliptic SG pseudo-differential operator is Fredholm. The essential spectra of elliptic SG pseudo-differential operators with positive orders and bounded SG pseudo-differential operators with orders 0,0 are computed....
Spectre du noyau intégral
On construit les fonctions propres sur et les valeurs caractéristiques du noyau de Hilbert-Schmidt . Le spectre est donné par la solution d’une équation transcendante dont le comportement asymptotique est .
Stability of a spline collocation method for strongly elliptic multidimensional singular integral equations.
Strong and weak stability of some Markov operators
An integral Markov operator appearing in biomathematics is investigated. This operator acts on the space of probabilistic Borel measures. Let and be probabilistic Borel measures. Sufficient conditions for weak and strong convergence of the sequence to are given.
Subalgebras to a Wiener type algebra of pseudo-differential operators
We study general continuity properties for an increasing family of Banach spaces of classes for pseudo-differential symbols, where was introduced by J. Sjöstrand in 1993. We prove that the operators in are Schatten-von Neumann operators of order on . We prove also that and , provided . If instead , then . By modifying the definition of the -spaces, one also obtains symbol classes related to the spaces.
Sufficient conditions for boundedness of convolution operators in rearrangement-invariant spaces.
Sufficient conditions for univalence of an integral operator defined by Al-Oboudi differential operator.
Sur la transformée de Laplace de considérée comme fonction de la diagonale de
Sur le spectre semi-classique d’un système intégrable de dimension 1 autour d’une singularité hyperbolique
Dans cet article on décrit le spectre semi-classique d’un opérateur de Schrödinger sur avec un potentiel type double puits. La description qu’on donne est celle du spectre autour du maximum local du potentiel. Dans la classification des singularités de l’application moment d’un système intégrable, le double puits représente le cas des singularités non-dégénérées de type hyperbolique.
Sur l'existence des solutions d'une équation intégro-différentielle
Sur l’inégalité de Fefferman-Phong
Sur une classe d'opérateurs de type sous-elliptique
Sur une équation d'èvolution intégro-différentielle singulière linéaire.
Surgery and the relative index in elliptic theory.
Teoria dei fasci e trasformazioni integrali per -moduli tra varietà di Grassmann
The Banach Envelopes of Besov and Triebel-Lizorkin Spaces and Applications to Partial Differential Equations.
The bilinear maximal functions map into for .