TY  - BOOK
AU  - Gustafsson,Björn
AU  - Putinar,Mihai
ED  - SpringerLink (Online service)
TI  - Hyponormal Quantization of Planar Domains: Exponential Transform in Dimension Two 
T2  - Lecture Notes in Mathematics,
SN  - 9783319658100
AV  - QA331-355 
U1  - 515.9 23
PY  - 2017///
CY  - Cham
PB  - Springer International Publishing, Imprint: Springer
KW  - Functions of complex variables
KW  - Operator theory
KW  - Potential theory (Mathematics)
KW  - Numerical analysis
KW  - Functions of a Complex Variable
KW  - Operator Theory
KW  - Potential Theory
KW  - Numerical Analysis
N1  - 1 Introduction -- 2 The exponential transform -- 3 Hilbert space factorization -- 4 Exponential orthogonal polynomials -- 5 Finite central truncations of linear operators -- 6 Mother bodies -- 7 Examples -- 8 Comparison with classical function spaces -- A Hyponormal operators -- Glossary -- Index -- References
N2  - This book exploits the classification of a class of linear bounded operators with rank-one self-commutators in terms of their spectral parameter, known as the principal function. The resulting dictionary between two dimensional planar shapes with a degree of shade and Hilbert space operators turns out to be illuminating and beneficial for both sides. An exponential transform, essentially a Riesz potential at critical exponent, is at the heart of this novel framework; its best rational approximants unveil a new class of complex orthogonal polynomials whose asymptotic distribution of zeros is thoroughly studied in the text. Connections with areas of potential theory, approximation theory in the complex domain and fluid mechanics are established. The text is addressed, with specific aims, at experts and beginners in a wide range of areas of current interest: potential theory, numerical linear algebra, operator theory, inverse problems, image and signal processing, approximation theory, mathematical physics
UR  - https://doi.org/10.1007/978-3-319-65810-0
ER  -