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Parametrized measures and variational principles (Record no. 561128)

000 -LEADER
fixed length control field 02274 a2200229 4500
005 - DATE AND TIME OF LATEST TRANSACTION
control field 20200127125635.0
008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION
fixed length control field 200123b xxu||||| |||| 00| 0 eng d
020 ## - INTERNATIONAL STANDARD BOOK NUMBER
ISBN 9783034898157
040 ## - CATALOGING SOURCE
Transcribing agency IIT Kanpur
041 ## - LANGUAGE CODE
Language code of text/sound track or separate title eng
082 ## - DEWEY DECIMAL CLASSIFICATION NUMBER
Classification number 515.64
Item number P343p
100 ## - MAIN ENTRY--AUTHOR NAME
Personal name Pedregal, Pablo
245 ## - TITLE STATEMENT
Title Parametrized measures and variational principles
Statement of responsibility, etc Pablo Pedregal
260 ## - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT)
Name of publisher Springer
Year of publication 1997
Place of publication Basel
300 ## - PHYSICAL DESCRIPTION
Number of Pages xi, 212p
440 ## - SERIES STATEMENT/ADDED ENTRY--TITLE
Title Progress in nonlinear differential equations and their applications
490 ## - SERIES STATEMENT
Series statement / edited by Haim Brezis; no.30
520 ## - SUMMARY, ETC.
Summary, etc Weak convergence is a basic tool of modern nonlinear analysis because it enjoys the same compactness properties that finite dimensional spaces do: basically, bounded sequences are weak relatively compact sets. Nonetheless, weak conver­ gence does not behave as one would desire with respect to nonlinear functionals and operations. This difficulty is what makes nonlinear analysis much harder than would normally be expected. Parametrized measures is a device to under­ stand weak convergence and its behavior with respect to nonlinear functionals. Under suitable hypotheses, it yields a way of representing through integrals weak limits of compositions with nonlinear functions. It is particularly helpful in comprehending oscillatory phenomena and in keeping track of how oscilla­ tions change when a nonlinear functional is applied. Weak convergence also plays a fundamental role in the modern treatment of the calculus of variations, again because uniform bounds in norm for se­ quences allow to have weak convergent subsequences. In order to achieve the existence of minimizers for a particular functional, the property of weak lower semicontinuity should be established first. This is the crucial and most delicate step in the so-called direct method of the calculus of variations. A fairly large amount of work has been devoted to determine under what assumptions we can have this lower semicontinuity with respect to weak topologies for nonlin­ ear functionals in the form of integrals. The conclusion of all this work is that some type of convexity, understood in a broader sense, is usually involved.
650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical Term Measure theory
650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical Term Calculus of variations
942 ## - ADDED ENTRY ELEMENTS (KOHA)
Koha item type Books
Holdings
Withdrawn status Lost status Damaged status Not for loan Collection code Permanent Location Current Location Date acquired Source of acquisition Cost, normal purchase price Full call number Accession Number Cost, replacement price Koha item type
        General Stacks PK Kelkar Library, IIT Kanpur PK Kelkar Library, IIT Kanpur 2020-02-03 2 6424.16 515.64 P343p A185176 8030.20 Books

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