The search session has expired. Please query the service again.

The search session has expired. Please query the service again.

Displaying similar documents to “Weighted estimates for differential operators with operator-valued coefficients”

On the eigenvalues of a class of hypo-elliptic operators. IV

Johannes Sjöstrand (1980)

Annales de l'institut Fourier

Similarity:

Let P be a selfadjoint classical pseudo-differential operator of order > 1 with non-negative principal symbol on a compact manifold. We assume that P is hypoelliptic with loss of one derivative and semibounded from below. Then exp ( - t P ) , t ≥ 0 , is constructed as a non-classical Fourier integral operator and the main contribution to the asymptotic distribution of eigenvalues of P is computed. This paper is a continuation of a series of joint works with A. Menikoff.

Unique continuation for elliptic equations and an abstract differential inequality

K. Senator (1994)

Studia Mathematica

Similarity:

We consider a class of elliptic equations whose leading part is the Laplacian and for which the singularities of the coefficients of lower order terms are described by a mixed L p -norm. We prove that the zeros of the solutions are of at most finite order in the sense of a spherical L²-mean.