Skip to main content

Elementary vectors and two polyhedral relaxations

  • Chapter
  • First Online:
Polyhedral Combinatorics

Part of the book series: Mathematical Programming Studies ((MATHPROGRAMM,volume 8))

Abstract

Two new results are proved concerning polyhedra that arise as relaxations of systems of the form Ax=b, x≥0. One of these theorems is used to relate elementary vectors and blocking polyhedra. In particular, a canonical blocking pair that arises from elementary vectors is described; all blocking pairs arise as minors of blocking pairs of this type. It is noted that a similar relationship between elementary vectors and antiblocking polyhedra follows from the second relaxation theorem.

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

Access this chapter

Institutional subscriptions

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. R.G. Bland, “Complementary orthogonal subspaces of R n and orientability of matroids”, Dissertation, Cornell University, (Ithaca, 1974).

    Google Scholar 

  2. P. Camion, “Modules unimodulaires”, Journal of Combinatorial Theory 4 (1968) 301–362.

    Article  MATH  MathSciNet  Google Scholar 

  3. D.R. Fulkerson, “Networks, frames, blocking systems”, in: G.B. Dantzig and A.F. Veinott, Jr., eds., Mathematics of the decision sciences (American Mathematical Society, Providence, 1968) pp. 303–334.

    Google Scholar 

  4. D.R. Fulkerson, “Blocking polyhedra”, in: B. Harris, ed., Graph theory and its applications (Academic Press, New York, 1970) pp. 93–111.

    Google Scholar 

  5. D.R. Fulkerson, “Blocking and antiblocking pairs of polyhedra”, Mathematical Programming 1 (1971) 168–194.

    Article  MATH  MathSciNet  Google Scholar 

  6. D.R. Fulkerson, “Antiblocking polyhedra”, Journal of Combinatorial Theory 12, (1972) 50–71.

    Article  MATH  MathSciNet  Google Scholar 

  7. D.R. Fulkerson and D.B. Weinberger, “Blocking pairs of polyhedra arising from network flows”, Journal of Combinatorial Theory (B) 18 (1975) 265–283.

    Article  MATH  MathSciNet  Google Scholar 

  8. H.-C. Huang, “Investigations on combinatorial optimization”. Dissertation, Yale University (New Haven, 1976).

    Google Scholar 

  9. R.T. Rockafellar, “The elementary vectors of a subspace of R n”, in: R.C. Bose and T.A. Dowling, eds., Combinatorial mathematics and its applications (Univ. of North Carolina Press, Chapel Hill, 1969) 104–127.

    Google Scholar 

  10. L.E. Trotter, Jr., and D.B. Weinberger, “Symmetric blocking and antiblocking relations for generalized circulations”. Technical Report No. 300, Department of Operations Research. Cornell University (1976).

    Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Editor information

M. L. Balinski A. J. Hoffman

Rights and permissions

Reprints and permissions

Copyright information

© 1978 The Mathematical Programming Society

About this chapter

Cite this chapter

Bland, R.G. (1978). Elementary vectors and two polyhedral relaxations. In: Balinski, M.L., Hoffman, A.J. (eds) Polyhedral Combinatorics. Mathematical Programming Studies, vol 8. Springer, Berlin, Heidelberg. https://doi.org/10.1007/BFb0121200

Download citation

  • DOI: https://doi.org/10.1007/BFb0121200

  • Received:

  • Revised:

  • Published:

  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-642-00789-7

  • Online ISBN: 978-3-642-00790-3

  • eBook Packages: Springer Book Archive

Publish with us

Policies and ethics