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Fourier Transforms and Approximations [Kõva köide]

  • Formaat: Hardback, 272 pages, kõrgus x laius: 254x178 mm, kaal: 739 g
  • Sari: Analytical Methods and Special Functions
  • Ilmumisaeg: 20-Sep-2000
  • Kirjastus: Taylor & Francis Ltd
  • ISBN-10: 9056992341
  • ISBN-13: 9789056992347
Teised raamatud teemal:
  • Formaat: Hardback, 272 pages, kõrgus x laius: 254x178 mm, kaal: 739 g
  • Sari: Analytical Methods and Special Functions
  • Ilmumisaeg: 20-Sep-2000
  • Kirjastus: Taylor & Francis Ltd
  • ISBN-10: 9056992341
  • ISBN-13: 9789056992347
Teised raamatud teemal:
Sedletskii (mathematical analysis, Moscow State U.) says a more detailed title would be Fourier transforms that are analytic functions and their applications to the function approximation by means of exponents and powers on subsets of the real axis: on an interval, on a semi-axis, and on the whole axis. But that would have left no room for his name on the cover. He considers the three classes of Fourier transforms: finite, on a semi-axis, and of rapidly decreasing function on the whole line. As well as synthesizing what is currently known about the topics, he presents some unsolved problems. A translator is identified, but no Russian edition. Annotation c. Book News, Inc., Portland, OR (booknews.com)
Preface vii
Notation and some preliminaries from analysis
1(10)
General notation
1(1)
Slowly varying functions
2(2)
Systems in Banach spaces
4(1)
Interpolation of linear operators
5(1)
Fourier transforms
6(1)
Hardy spaces Hp
7(1)
Entire functions
8(3)
Comments to
Chapter 1
10(1)
Distribution of zeros of finite Fourier (Laplace) transforms
11(30)
On zeros of finite Laplace transforms
11(5)
On zeros of Fourier sine- and cosine-transforms
16(9)
Bounds for zeros of the finite Laplace transforms
25(6)
A condition for all the zeros of an entire function of exponential type to lie in a curvilinear half-plane
31(10)
Comments and supplements to
Chapter 2
39(2)
Estimates of Fourier and Laplace transforms and their applications
41(24)
Asymptotic behaviour of finite Laplace transforms
41(11)
Complex variants of the Abelian theorem for Laplace transforms
52(3)
Decreasing finite Fourier transforms and their application to the approximation
55(5)
Finite Fourier transforms without zeros in a neighbourhood of the real axis
60(5)
Comments and supplements to
Chapter 3
63(2)
Laplace transforms in the weight spaces Lp and their applications
65(18)
Laplace transforms as operators in the spaces Lp∞
65(4)
On completeness and non-minimality of a system of exponents in Lp(-π,π)
69(14)
Comments and supplements to
Chapter 4
81(2)
Stability of classes of finite Fourier transforms and its application
83(38)
The invariance of the class F L2
83(12)
The invariance of the class F Lq
95(6)
Entire functions of Bernstein's class that are not Fourier-Stieltjes transforms
101(10)
Excesses of systes of exponents
111(10)
Comments and supplements to
Chapter 5
119(2)
Non-harmonic Fourier series (behaviour on the initial interval)
121(28)
Formulae for partial sums
121(6)
Non-harmonic Fourier series and the condition (Ap)
127(10)
Equiconvergence and uniform convergence of non-harmonic Fourier series
137(12)
Comments and supplements to
Chapter 6
147(2)
Non-harmonic Fourier series (behaviour on the real line)
149(30)
Extension of convergence of quasi-polynomials
149(12)
Continuation of functions from the initial segment
161(3)
Convergence and summability of non-harmonic Fourier series in the Lp-norm (1 ≤ p ≤ ∞) on every segment
164(7)
Properties of the system (exp (i(n + β sgn n)t)
171(8)
Comments and supplements to
Chapter 7
176(3)
The Muntz-Szasz problem
179(32)
The case of real exponents and analysis of the problem in the spaces C and Lp, p > 2
179(8)
On zeros of analytic functions in a disk
187(7)
Analysis of the problem in the weight spaces Lp
194(17)
Comments and supplements of
Chapter 8
210(1)
Fourier transforms of rapidly decreasing functions
211(20)
Theorems of Pitt's type
211(7)
Fourier transforms of rapidly decreasing functions on a half-line and on the line
218(13)
Comments and supplements to
Chapter 9
229(2)
Approximation by translates and exponents on the line
231(24)
Dense families of translates of a function on a line
231(14)
Approximative properties of weighted exponents on the whole line
245(10)
Comments and supplements to
Chapter 10
254(1)
References 255(6)
Index 261


A M Sedletskii