Skip to main content
Log in

A decomposition algorithm for linear relaxation of the weightedr-covering problem

  • Published:
Mathematical Programming Submit manuscript

Abstract

In this paper the linear relaxation of the weightedr-covering problem (r-LCP) is considered. The dual problem (c-LMP) is the linear relaxation of the well-knownc-matching problem and hence can be solved in polynomial time. However, we describe a simple, but nonpolynomial algorithm in which ther-LCP is decomposed into a sequence of 1-LCP’s and its optimal solution is obtained by adding the optimal solutions of these 1-LCP’s. An 1-LCP can be solved in polynomial time by solving its dual as a max-flow problem on a bipartite graph. An accelerated algorithm based on this decomposition scheme to solve ar-LCP is also developed and its average case behaviour is studied.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Similar content being viewed by others

References

  1. S. Agarwal, A.K. Mittal and P. Sharma, “An extension of the edge covering problem”,Mathematical Programming 23 (1982) 353–356.

    Article  MATH  MathSciNet  Google Scholar 

  2. E.L. Lawler,Combinatorial optimization: Networks and matroids (Holt, Reinhardt & Winston, NY, 1976).

    MATH  Google Scholar 

  3. V.M. Malhotra, M.D. Kumar and S.N. Maheswari, “An (O|V|3) algorithm for finding maximum flows in networks”,Information Processing Letters7 (1978) 277–278.

    Article  MATH  MathSciNet  Google Scholar 

  4. G.L. Nemhauser and R.E. Trotter, “Vertex packing structural properties and algorithms”,Mathematical Programming8 (1975) 232–248.

    Article  MATH  MathSciNet  Google Scholar 

  5. W.R. Pulleyblank, “Minimum node covers and 2-bicritical graphs”,Mathematical Programming 17 (1979) 91–103.

    Article  MATH  MathSciNet  Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Rights and permissions

Reprints and permissions

About this article

Cite this article

Agarwal, S., Mittal, A.K. & Sharma, P. A decomposition algorithm for linear relaxation of the weightedr-covering problem. Mathematical Programming 31, 67–77 (1985). https://doi.org/10.1007/BF02591862

Download citation

  • Received:

  • Revised:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF02591862

Key words

Navigation