1.

Record Nr.

UNINA9910480214303321

Autore

Olshevsky Vadim

Titolo

Structured Matrices in Mathematics, Computer Science, and Engineering [[electronic resource]]

Pubbl/distr/stampa

Providence, : American Mathematical Society, 2001

ISBN

0-8218-7871-9

0-8218-2092-3

Descrizione fisica

1 online resource (362 p.)

Collana

Contemporary Mathematics ; ; v.281

Disciplina

512.9/434

Soggetti

Matrices -- Congresses

Electronic books.

Lingua di pubblicazione

Inglese

Formato

Materiale a stampa

Livello bibliografico

Monografia

Note generali

Description based upon print version of record.

Nota di contenuto

""Contents""; ""Foreword""; ""Part V. Fast Algorithms""; ""The Schur algorithm for matrices with Hessenberg displacement structure""; ""Fast inversion algorithms for a class of block structured matrices""; ""A fast and stable solver for recursively semi-separable systems of linear equations""; ""Part VI. Numerical Issues""; ""Stability properties of several variants of the unitary Hessenberg QR algorithm""; ""Comparison of algorithms for Toeplitz least squares and symmetric positive definite linear systems""; ""Stability of Toeplitz matrix inversion formulas""

""Necessary and sufficient conditions for accurate and efficient rational function evaluation and factorizations of rational matrices""""Updating and downdating of orthonormal polynomial vectors and some applications""; ""Rank-revealing decompositions of symmetric Toeplitz matrices""; ""Part VII. Iterative Methods. Preconditioners""; ""A survey of preconditioners for ill-conditioned Toeplitz systems""; ""Preconditioning of Hermitian block�Toeplitz�Toeplitz�block matrices by level�1 preconditioners""; ""Part VIII. Linear Algebra and Various Applications""

""A generalization of the Perron-Frobenius theorem for non-linear perturbations of Stiltjes matrices""""The rhombus matrix: Definition and properties""



2.

Record Nr.

UNINA9910367566503321

Autore

Eriksson Sandra

Titolo

Permanent Magnet Synchronous Machines / Sandra Eriksson

Pubbl/distr/stampa

MDPI - Multidisciplinary Digital Publishing Institute, 2019

Basel, Switzerland : , : MDPI, , 2019

ISBN

9783039213511

3039213512

Descrizione fisica

1 electronic resource (282 p.)

Soggetti

History of engineering and technology

Lingua di pubblicazione

Inglese

Formato

Materiale a stampa

Livello bibliografico

Monografia

Sommario/riassunto

Interest in permanent magnet synchronous machines (PMSMs) is continuously increasing worldwide, especially with the increased use of renewable energy and the electrification of transports. This book contains the successful submissions of fifteen papers to a Special Issue of Energies on the subject area of "Permanent Magnet Synchronous Machines". The focus is on permanent magnet synchronous machines and the electrical systems they are connected to. The presented work represents a wide range of areas. Studies of control systems, both for permanent magnet synchronous machines and for brushless DC motors, are presented and experimentally verified. Design studies of generators for wind power, wave power and hydro power are presented. Finite element method simulations and analytical design methods are used. The presented studies represent several of the different research fields on permanent magnet machines and electric drives.