Record Nr.

UNISA996466808103316

Titolo

Inverse and algebraic quantum scattering theory : proceedings of a conference held at Lake Balaton, Hungary, 3-7, September 1996 / / Barnabás Apagyi, Gábor Endrédi, Péter Lévay, editors

Pubbl/distr/stampa


Berlin ; ; Heidelberg : , : Springer, , 1997

ISBN

3-540-63021-X

3-662-14145-0

Edizione

[1st ed. 1997.]

Descrizione fisica

1 online resource (XV, 388 p. 30 illus.)

Collana

Lecture Notes in Physics, , 0075-8450 ; ; 488

Disciplina

515.357

Soggetti

Inverse problems (Differential equations)

Quantum scattering

Lingua di pubblicazione

Inglese

Formato

Materiale a stampa

Livello bibliografico

Monografia

Note generali

Bibliographic Level Mode of Issuance: Monograph

Nota di contenuto

New inverse spectral problem and its application -- Inverse problem on the entire line and some connected questions of spectral theory -- Qualitative physics in spectral, scattering and decay control -- Ambiguities in inversion potentials for light nuclear ion scattering -- Coupled-channel marchenko inversion in one dimension with thresholds -- One-dimensional inversion in neutron and X-ray reflection -- Non-standard information in optical model analyses -- Numerical method for solving the inverse problem of quantum scattering theory -- The inverse scattering problem for coupled channels with the modified newton-sabatier method -- Energy-dependent potentials obtained by IP inversion -- Modeling of nucleon-nucleon potentials, quantum inversion versus meson exchange pictures -- Inversion potentials for meson-nucleon and meson-meson interactions -- Fixed-energy inversion of polarisation-corrected electron-atom scattering phase-shifts into effective potentials -- Pion nucleus interaction from inverse scattering theory and a test of charge symmetry -- NN potentials with explicit momentum dependence obtained from generalized darboux transformations -- Unitarity and the scattering phase shifts for inversion studies -- Potential reversal and reflectionless impurities in periodic structures -- The method of the weakly conjugate operator -- Solutions to the hierarchy of the

periodic toda lattices -- Spectrum generating algebras and dynamic symmetries in scattering -- Algebraic coupled-channels formalism for heavy ions near the coulomb barrier -- Algebraic scattering theory and light heavy-ion reactions -- Geometrical relation of the SACM -- Phase-equivalent complex potentials -- Exactly solvable models for two-dimensional quantum systems -- Exactly solvable quantum models for investigation of nonadiabatic transitions -- Modified symmetry generators for SO(3, 2) and algebraic scattering theory -- Analytical results on generating phase-equivalent potentials by supersymmetry: Removal and addition of bound states -- Multidimensional inverse scattering with fixed-energy data.

Sommario/riassunto

This volume contains three interrelated, beautiful, and useful topics of quantum scattering theory: inverse scattering theory, algebraic scattering theory and supersymmetrical quantum mechanics. The contributions cover such issues as coupled-channel inversions at fixed energy, inversion of pion-nucleon scattering cross-sections into potentials, inversions in neutron and x-ray reflection, 3-dimensional fixed-energy inversion, inversion of electron scattering data affected by dipole polarization, nucleon-nucleon potentials by inversion versus meson-exchange theory, potential reversal and reflectionless impurities in periodic structures, quantum design in spectral, scattering, and decay control, solution hierarchy of Toda lattices, etc.

Record Nr.

UNISALENTO991003569239707536

Autore

Jurafsky, Dan, 1962-

Titolo

Speech and language processing : an introduction to natural language processing, computational linguistics, and speech recognition / Daniel Jurafsky, James H. Martin

Pubbl/distr/stampa


Upper Saddle River, N.J. : Pearson Prentice Hall, c2009

ISBN

9780135041963

Edizione

[2nd ed.]

Descrizione fisica

10024 p. : ill. ; 25 cm

Collana

Prentice Hall series in artificial intelligence

Altri autori (Persone)

Martin, James H., 1959-

Disciplina

006.3

Soggetti

Computational linguistics

Automatic speech recognition