week29 cover

In fact, in the case of a continuous symbol, the compactness of the Toeplitz operators depends only on the behavior of the symbol on the boundary of the disk and this is similar to

The purpose of the present paper is to investigate the structure of distance spheres and cut locus C(K) to a compact set K of a complete Alexandrov surface X with curvature

It turns out that the symbol which is defined in a probabilistic way coincides with the analytic (in the sense of pseudo-differential operators) symbol for the class of Feller

However its power ∇ / 2 , though not conformally covariant, has positive definite leading symbol (in fact, leading symbol |ξ| 2 Id), and so satisfies our analytic and

[Mag3] , Painlev´ e-type differential equations for the recurrence coefficients of semi- classical orthogonal polynomials, J. Zaslavsky , Asymptotic expansions of ratios of

Wro ´nski’s construction replaced by phase semantic completion. ASubL3, Crakow 06/11/06

Similar arguments have already appeared in [12, 11], but here the use of residuated frames allows us to give a unified proof of the two facts that (i) analytic rules preserve a

Next section 4 develops the notion of reduced Witt vectors; this is used to compute the Artin-Schreier-Witt symbol in section 5 and thus to describe the ramification groups for