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  • © 2002

Generalized Concavity in Fuzzy Optimization and Decision Analysis

Part of the book series: International Series in Operations Research & Management Science (ISOR, volume 41)

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Table of contents (10 chapters)

  1. Front Matter

    Pages i-xv
  2. Theory

    1. Front Matter

      Pages 1-3
    2. Preliminaries

      • Jaroslav Ramík, Milan Vlach
      Pages 5-10
    3. Generalized Convex Sets

      • Jaroslav Ramík, Milan Vlach
      Pages 11-36
    4. Generalized Concave Functions

      • Jaroslav Ramík, Milan Vlach
      Pages 37-71
    5. Triangular Norms and T-Quasiconcave Functions

      • Jaroslav Ramík, Milan Vlach
      Pages 73-99
    6. Aggregation Operators

      • Jaroslav Ramík, Milan Vlach
      Pages 101-119
    7. Fuzzy Sets

      • Jaroslav Ramík, Milan Vlach
      Pages 121-157
  3. Applications

    1. Front Matter

      Pages 159-161
    2. Fuzzy Multi-Criteria Decision Making

      • Jaroslav Ramík, Milan Vlach
      Pages 163-191
    3. Fuzzy Mathematical Programming

      • Jaroslav Ramík, Milan Vlach
      Pages 193-215
    4. Fuzzy Linear Programming

      • Jaroslav Ramík, Milan Vlach
      Pages 217-251
    5. Fuzzy Sequencing and Scheduling

      • Jaroslav Ramík, Milan Vlach
      Pages 253-282
  4. Back Matter

    Pages 283-296

About this book

Convexity of sets in linear spaces, and concavity and convexity of functions, lie at the root of beautiful theoretical results that are at the same time extremely useful in the analysis and solution of optimization problems, including problems of either single objective or multiple objectives. Not all of these results rely necessarily on convexity and concavity; some of the results can guarantee that each local optimum is also a global optimum, giving these methods broader application to a wider class of problems. Hence, the focus of the first part of the book is concerned with several types of generalized convex sets and generalized concave functions. In addition to their applicability to nonconvex optimization, these convex sets and generalized concave functions are used in the book's second part, where decision-making and optimization problems under uncertainty are investigated.
Uncertainty in the problem data often cannot be avoided when dealing with practical problems. Errors occur in real-world data for a host of reasons. However, over the last thirty years, the fuzzy set approach has proved to be useful in these situations. It is this approach to optimization under uncertainty that is extensively used and studied in the second part of this book. Typically, the membership functions of fuzzy sets involved in such problems are neither concave nor convex. They are, however, often quasiconcave or concave in some generalized sense. This opens possibilities for application of results on generalized concavity to fuzzy optimization. Despite this obvious relation, applying the interface of these two areas has been limited to date. It is hoped that the combination of ideas and results from the field of generalized concavity on the one hand and fuzzy optimization on the other hand outlined and discussed in Generalized Concavity in Fuzzy Optimization and Decision Analysis will be of interest to both communities. Our aimis to broaden the classes of problems that the combination of these two areas can satisfactorily address and solve.

Authors and Affiliations

  • School of Business Administration, Silesian University, Karviná, Czech Republic

    Jaroslav Ramík

  • School of Information Science, Japan Advanced Institute of Science and Technology, Ishikawa, Japan

    Milan Vlach

  • Faculty of Mathematics and Physics, Charles University, Prague, Czech Republic

    Milan Vlach

Bibliographic Information

Buy it now

Buying options

eBook USD 84.99
Price excludes VAT (USA)
  • Available as PDF
  • Read on any device
  • Instant download
  • Own it forever
Softcover Book USD 109.99
Price excludes VAT (USA)
  • Compact, lightweight edition
  • Dispatched in 3 to 5 business days
  • Free shipping worldwide - see info
Hardcover Book USD 109.99
Price excludes VAT (USA)
  • Durable hardcover edition
  • Dispatched in 3 to 5 business days
  • Free shipping worldwide - see info

Tax calculation will be finalised at checkout

Other ways to access