THE WEAK - TYPE ( 1 , 1 ) OF FOURIER INTEGRAL OPERATORS OF ORDER - ( n - l ) / 2

نویسندگان

  • TERENCE TAO
  • Terence Tao
چکیده

Let T be a Fourier integral operator on K" of order —(n — l)/2. Seeger, Sogge, and Stein showed (among other things) that T maps the Hardy space H to L. In this note we show that T is also of weak-type (1, 1). The main ideas are a decomposition of T into non-degenerate and degenerate components, and a factorization of the non-degenerate portion. 2000 Mathematics subject classification: primary 42B20.

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

THE WEAK-TYPE (1, 1) OF FOURIER INTEGRAL OPERATORS OF ORDER −(n − 1)/2

Let T be a Fourier integral operator on R n of order −(n − 1)/2. In [4] it was shown (among other things) that T maps the Hardy space H 1 to L 1. In this note we show that T is also of weak-type (1, 1). The main ideas are a decomposition of T into non-degenerate and degenerate components, and a factorization of the non-degenerate portion.

متن کامل

On the Integral Representations of Generalized Relative Type and Generalized Relative Weak Type of Entire Functions

In this paper we wish to establish the integral representations of generalized relative type and generalized relative weak type as introduced by Datta et al [9]. We also investigate their equivalence relation under some certain conditions.

متن کامل

Boundedness of Fourier Integral Operators on Fourier Lebesgue Spaces and Affine Fibrations

We carry on the study of Fourier integral operators of Hörmander’s type acting on the spaces FL(R)comp, 1 ≤ p ≤ ∞, of compactly supported distributions whose Fourier transform is in L. We show that the sharp loss of derivatives for such an operator to be bounded on these spaces is related to the rank r of the Hessian of the phase Φ(x, η) with respect to the space variables x. Indeed, we show th...

متن کامل

. A P ] 1 S ep 2 00 6 OPTIMAL REGULARITY OF FOURIER INTEGRAL OPERATORS WITH ONE - SIDED FOLDS

We obtain optimal continuity in Sobolev spaces for the Fourier integral operators associated to singular canonical relations, when one of the two projections is a Whitney fold. The regularity depends on the type, k, of the other projection from the canonical relation (k = 1 for a Whitney fold). We prove that one loses (4 + 2 k) −1 of a derivative in the regularity properties. The proof is based...

متن کامل

On $F$-Weak Contraction of Generalized Multivalued Integral Type Mappings with $alpha $-admissible

The purpose of this work is to investigate the existence of fixed points of some mappings in fixed point theory by combining some important concepts which are F-weak contractions, multivalued mappings, integral transformations and α-admissible mappings. In fixed point theory, it is important to find fixed points of some classess under F- or F-weak contractions. Also multivalued mappings is the ...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2008