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020 _a9783031651335
_9978-3-031-65133-5
024 7 _a10.1007/978-3-031-65133-5
_2doi
050 4 _aQA404.7-405
072 7 _aPBK
_2bicssc
072 7 _aMAT033000
_2bisacsh
072 7 _aPBK
_2thema
100 1 _aSaff, Edward B.
_eauthor.
_0(orcid)0000-0003-1079-9074
_1https://orcid.org/0000-0003-1079-9074
_4aut
_4http://id.loc.gov/vocabulary/relators/aut
_985601
245 1 0 _aLogarithmic Potentials with External Fields
_h[electronic resource] /
_cby Edward B. Saff, Vilmos Totik.
250 _a2nd ed. 2024.
264 1 _aCham :
_bSpringer International Publishing :
_bImprint: Springer,
_c2024.
300 _aXVI, 594 p.
_bonline resource.
336 _atext
_btxt
_2rdacontent
337 _acomputer
_bc
_2rdamedia
338 _aonline resource
_bcr
_2rdacarrier
347 _atext file
_bPDF
_2rda
490 1 _aGrundlehren der mathematischen Wissenschaften, A Series of Comprehensive Studies in Mathematics,
_x2196-9701 ;
_v316
505 0 _aPart 1 Fundamentals. I Weighted Potentials -- II Recovery of Measures, Green Functions and Balayage -- III Weighted Polynomials -- IV Determination of the Extremal Measure -- Part 2 Applications and Generalizations -- V Extremal Point Methods -- VI Weights on the Real Line -- VII Applications Concerning Orthogonal Polynomials -- VIII Signed Measures -- IX Some Problems from Physics -- X Generalizations -- Part 3 Appendices -- A.I Basic Tools -- A.II The Dirichlet Problem and Harmonic Measures -- A.III Weighted approximation in ℂᴺ -- A.IV Classical Logarithmic Potential Theory.
520 _aThis is the second edition of an influential monograph on logarithmic potentials with external fields, incorporating some of the numerous advancements made since the initial publication. As the title implies, the book expands the classical theory of logarithmic potentials to encompass scenarios involving an external field. This external field manifests as a weight function in problems dealing with energy minimization and its associated equilibria. These weighted energies arise in diverse applications such as the study of electrostatics problems, orthogonal polynomials, approximation by polynomials and rational functions, as well as tools for analyzing the asymptotic behavior of eigenvalues for random matrices, all of which are explored in the book. The theory delves into diverse properties of the extremal measure and its logarithmic potentials, paving the way for various numerical methods. This new, updated edition has been thoroughly revised and is reorganized into three parts, Fundamentals, Applications and Generalizations, followed by the Appendices. Additions to the new edition include: new material on the following topics: analytic and C² weights, differential and integral formulae for equilibrium measures, constrained energy problems, vector equilibrium problems, and a probabilistic approach to balayage and harmonic measures; a new chapter entitled Classical Logarithmic Potential Theory, which conveniently summarizes the main results for logarithmic potentials without external fields; several new proofs and sharpened forms of some main theorems; expanded bibliographic and historical notes with dozens of additional references. Aimed at researchers and students studying extremal problems and their applications, particularly those arising from minimizing specific integrals in the presence of an external field, this book assumes a firm grasp of fundamental real and complex analysis. It meticulously develops classical logarithmic potential theory alongside the more comprehensive weighted theory.
650 0 _aPotential theory (Mathematics).
_972223
650 0 _aApproximation theory.
_974825
650 0 _aFourier analysis.
650 0 _aFunctions of complex variables.
_972222
650 0 _aNumerical analysis.
650 1 4 _aPotential Theory.
_972226
650 2 4 _aApproximations and Expansions.
_974827
650 2 4 _aFourier Analysis.
650 2 4 _aFunctions of a Complex Variable.
_972224
650 2 4 _aNumerical Analysis.
700 1 _aTotik, Vilmos.
_eauthor.
_4aut
_4http://id.loc.gov/vocabulary/relators/aut
_985602
710 2 _aSpringerLink (Online service)
773 0 _tSpringer Nature eBook
776 0 8 _iPrinted edition:
_z9783031651328
776 0 8 _iPrinted edition:
_z9783031651342
830 0 _aGrundlehren der mathematischen Wissenschaften, A Series of Comprehensive Studies in Mathematics,
_x2196-9701 ;
_v316
_980074
856 4 0 _uhttps://doi.org/10.1007/978-3-031-65133-5
912 _aZDB-2-SMA
912 _aZDB-2-SXMS
999 _c63991
_d63991