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Orientation and the Leray-Schauder Theory for Fully Nonlinear Elliptic Boundary Value Problems
 
Front Cover for Orientation and the Leray-Schauder Theory for Fully Nonlinear Elliptic Boundary Value Problems
Available Formats:
Electronic ISBN: 978-1-4704-0060-6
Product Code: MEMO/101/483.E
131 pp 
List Price: $32.00
MAA Member Price: $28.80
AMS Member Price: $19.20
Front Cover for Orientation and the Leray-Schauder Theory for Fully Nonlinear Elliptic Boundary Value Problems
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  • Front Cover for Orientation and the Leray-Schauder Theory for Fully Nonlinear Elliptic Boundary Value Problems
  • Back Cover for Orientation and the Leray-Schauder Theory for Fully Nonlinear Elliptic Boundary Value Problems
Orientation and the Leray-Schauder Theory for Fully Nonlinear Elliptic Boundary Value Problems
Available Formats:
Electronic ISBN:  978-1-4704-0060-6
Product Code:  MEMO/101/483.E
131 pp 
List Price: $32.00
MAA Member Price: $28.80
AMS Member Price: $19.20
  • Book Details
     
     
    Memoirs of the American Mathematical Society
    Volume: 1011993
    MSC: Primary 35; 47; 58;

    The aim of this work is to develop an additive, integer-valued degree theory for the class of quasilinear Fredholm mappings. This class is sufficiently large that, within its framework, one can study general fully nonlinear elliptic boundary value problems. A degree for the whole class of quasilinear Fredholm mappings must necessarily accomodate sign-switching of the degree along admissible homotopies. The authors introduce “parity”, a homotopy invariant of paths of linear Fredholm operators having invertible endpoints. The parity provides a complete description of the possible changes in sign of the degree and thereby permits use of the degree to prove multiplicity and bifurcation theorems for quasilinear Fredholm mappings. Applications are given to the study of fully nonlinear elliptic boundary value problems.

    Readership

    Research mathematicians.

  • Table of Contents
     
     
    • Chapters
    • 1. Introduction
    • 2. Quasilinear Fredholm mappings
    • 3. Orientation and the degree
    • 4. General properties of the degree
    • 5. Mapping theorems
    • 6. The parity of a path of linear Fredholm operators
    • 7. The regular value formula and homotopy dependence
    • 8. Bifurcation and continuation
    • 9. Strong orientability
    • 10. Fully nonlinear elliptic boundary value problems
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Volume: 1011993
MSC: Primary 35; 47; 58;

The aim of this work is to develop an additive, integer-valued degree theory for the class of quasilinear Fredholm mappings. This class is sufficiently large that, within its framework, one can study general fully nonlinear elliptic boundary value problems. A degree for the whole class of quasilinear Fredholm mappings must necessarily accomodate sign-switching of the degree along admissible homotopies. The authors introduce “parity”, a homotopy invariant of paths of linear Fredholm operators having invertible endpoints. The parity provides a complete description of the possible changes in sign of the degree and thereby permits use of the degree to prove multiplicity and bifurcation theorems for quasilinear Fredholm mappings. Applications are given to the study of fully nonlinear elliptic boundary value problems.

Readership

Research mathematicians.

  • Chapters
  • 1. Introduction
  • 2. Quasilinear Fredholm mappings
  • 3. Orientation and the degree
  • 4. General properties of the degree
  • 5. Mapping theorems
  • 6. The parity of a path of linear Fredholm operators
  • 7. The regular value formula and homotopy dependence
  • 8. Bifurcation and continuation
  • 9. Strong orientability
  • 10. Fully nonlinear elliptic boundary value problems
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