Last edited by Bakora
Friday, July 17, 2020 | History

8 edition of Monotone matrix functions and analytic continuation found in the catalog.

Monotone matrix functions and analytic continuation

by William F. Donoghue

  • 214 Want to read
  • 2 Currently reading

Published by Springer in Berlin, New York .
Written in English

    Subjects:
  • Analytic functions,
  • Monotonic functions,
  • Analytic continuation

  • Edition Notes

    Statement[by] William F. Donoghue.
    SeriesDie Grundlehren der mathematischen Wissenschaften in Einzeldarstellungen mit besonderer Berücksichtigung der Anwendungsgebeite ;, Bd. 207
    Classifications
    LC ClassificationsQA331 .D687
    The Physical Object
    Pagination182 p.
    Number of Pages182
    ID Numbers
    Open LibraryOL5421758M
    ISBN 100387065431
    LC Control Number73015293

    continuation to a Pick function; that is, an analytic function defined in the complex upper half-plane, with nonnegative imaginary part. A function is called matrix monotone if it is matrix monotone for allCited by: that functions that are operator monotone on Iare exactly those functions that are analytic with positive imaginary part in the upper half-plane (Pick functions) and that have an analytic continuation to the lower half-plane acrossI,wherethe continuation is by re ection. This is the content of L owner’s Theorem. Many dif-.

    The matrix convexity and the matrix monotony of a real C 1 function f on (0,∞) are characterized in terms of the conditional negative or positive definiteness of the Loewner matrices associated with f, tf(t), and t 2 f(t).Similar characterizations are also obtained for matrix monotone functions Cited by: The hypothesis that the Pick matrix be positive is weaker than the hypothesis that the function f(x) be a monotone matrix function of all orders. This was pointed out to the author by J. Rovnyak. By a theorem of Chandler, the stronger hypothesis implies that the function is Cited by: 4.

    References Books: T. Ando, Norms and Cones in Tensor Products of Matrices, Preprint, Jr., Monotone Matrix Functions and Analytic Continuation, Springer-Verlag, New York, E. Jorswieck and H. Boche, Majorization and Matrix Monotone Functions in. functions that are monotone matrix functions of all orders on the interval. A well-known theorem of Loewner [6] then guarantees that these functions are precisely those real functions on the interval J which admit an analytic continuation throughout the upper half .


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Monotone matrix functions and analytic continuation by William F. Donoghue Download PDF EPUB FB2

A Pick function is a function that is analytic in the upper half-plane with positive imaginary part. In the first part of this book we try to give a readable account of this class of functions as well. Monotone Matrix Functions and Analytic Continuation | SpringerLink.

Skip to main contentSkip to table of contents. Advertisement. Buy Monotone Matrix Functions and Analytic Continuation (Grundlehren der mathematischen Wissenschaften) on FREE SHIPPING on qualified orders Monotone Matrix Functions and Analytic Continuation (Grundlehren der mathematischen Wissenschaften): Donoghue: : BooksCited by: In the remainder of the book we treat a closely related topic: Loewner's theory of monotone matrix functions and his analytic continuation theorem which guarantees that a real function on an interval of the real axis which is a monotone matrix function of arbitrarily high order is the restriction to that interval of a Pick function.

Get this from a library. Monotone matrix functions and analytic continuation. [William F Donoghue]. By W. Donoghue JR: pp. vii, ClothDM48,—; U.S.$ (Springer‐Verlag, Berlin, )Author: J. Cooper. In: Monotone Matrix Functions and Analytic Continuation.

Die Grundlehren der mathematischen Wissenschaften (in Einzeldarstellungen mit besonderer Berücksichtigung der Anwendungsgebiete), vol Springer, Berlin, HeidelbergCited by: 5. Bull. Amer. Math. Soc.

Vol Number 5 (), Review: W. Donoghue Jr., Monotone matrix functions and analytic continuation Adam KorányiAuthor: Adam Korányi. Interpolation classes and matrix monotone functions. In Donoghue’s book [1] W. Monotone Matrix Functions and Analytic Continuation. Springer, 2.

The first is the one from operator monotone property of functions regarded as the nonlinear version of the Stinespring theorem, the second one is the characterization of commutativity of local.

on the theory of interpolation of matrix monotone functions by Pick functions. A standard source on this type of interpolation is Donoghue’s book [7]. Indeed, by a result from Löwner’s theory, a matrix monotone + and admit of analytic continuation to the upper half-plane in C and have non-negative imaginary parts there.

It can be shown. In the remainder of the book we treat a closely related topic: Loewner's theory of monotone matrix functions and his analytic continuation theorem which guarantees that a real function on an interval of the real axis which is a monotone matrix function of arbitrarily high order is the restriction to that interval of a Pick : William F.

Donoghue Jr. Interpolation classes, operator and matrix monotone functions Yacin Ameura, Sten Kaijserb, analytical continuation properties.

Obtaining satisfactory characterizations and W. Monotone Matrix Functions and Analytic Continuation. Springer, 2. Löwner, K. Über monotone Matrixfunktionen. Operator monotone functions and Löwner functions of several variables Pages from Volume (), Issue 3 by Jim Agler, John E.

McCarthy, N. Young AbstractCited by: of monotone matrix functions of two variables analogous to that developed by Loewner and show that a complete analogue to Loewner's theory exists in two dimensions. Introduction. The theory of monotone matrix functions was created by Charles Loewner in a celebrated paper published in [5].

This theory concerns. Operator monotone functions and L owner functions of several variables By Jim Agler, John E.

McCarthy, and N. Young Abstract We prove generalizations of L owner’s results on matrix monotone func-tions to several variables. We give a characterization of when a function of d variables is locally monotone on d-tuples of commuting self-adjoint.

Suppose f is an analytic function defined on a non-empty open subset U of the complex plane. If V is a larger open subset of, containing U, and F is an analytic function defined on V such that = ∀ ∈,then F is called an analytic continuation of other words, the restriction of F to U is the function f we started with.

Analytic continuations are unique in the following sense: if V is. Monotone matrix functions and analytic continuation by William F. Donoghue 2 editions - first published in Download PDF: Sorry, we are unable to provide the full text but you may find it at the following location(s): (external link)Cited by: absolutely monotone function.

An infinitely-differentiable function on an interval such that it and all its derivatives are non-negative functions were first investigated by S.N. Bernshtein in and the study was continued in greater detail terminology also seems due to Bernshtein, although the name was originally applied to differences rather than derivatives.

William F. Donoghue Jr. wrote Monotone Matrix Functions and Analytic Continuation, which can be purchased at a lower price at. Recent development of the theory of matrix monotone functions and of matrix convex functions Jun Tomiyama December, are called as matrix monotone functions of degree n, n-monotone in short open interval becomes operator monotone if and only if it has an analytic continuation to the upper half plain whose values take also in the upper.matrix convex functions) and this class offunctionsin the truncatedform.

Relation between operator monotone functions and completely monotone functionsis known before whereas the relation between operator convexfunc-tions and this class has been discussed only recentry. Furthermore, we discuss special aspects of 2-monotonicity and 2-convexityin.[1]Pick Interpolation for free holomorphic functions, American Journal of Mathe-matics (), pp.

{ [2]J. Agler, J. E. McCarthy and N. Young, Operator monotone functions and L owner functions of several variables, Ann. of Math., (), pp. { [3]W. Donoghue, Monotone Matrix Functions and Analytic Continuation.