Summary
Strong theorems concerning globally unique solutions to nonlinear inequalities have been obtained byGale andNikaido via P-matrix characterizations of theJacobians of the mappings involved. We introduce two new concepts here: “v-positivity” and the “poverse”. These permit us to state and prove significant generalizations of the theorems just mentioned and, equally important, provide access to preliminary results concerning linear inequalities by the powerful direct techniques of linear programming theory.
Zusammenfassung
Gale undNikaido haben starke Sätze über globale, eindeutige Lösungen nichtlinearer Ungleichungen erhalten für den Fall, daß dieJacobi- Matrix der auftretenden Abbildung eineP-Matrix ist. Darauf aufbauend werden zwei neue Konzepte vorgestellt: “v-positivity“ und die „poverse“. Diese erlauben es, Verallgemeinerungen der erwähnten Sätze aufzustellen und zu beweisen und, was von gleicher Bedeutung ist, die Verbindung zu früheren Ergebnissen über lineare Ungleichungen durch die wirkungsvollen direkten Verfahren der Theorie der Linearen Optimierung herzustellen.
Similar content being viewed by others
References
Charnes, A., andW. W. Cooper: Management Models and Industrial Applications of Linear Programming, New York 1961 (2 vols.).
Gale, D., andH. Nikaido: The Jacobian Matrix and Global Univalence of Mappings, in: Math. Annalen159, 81–93, 1965.
Kellogg, R. B., T. Y. Li, andJ. Yorke: A Continuation Method for Calculating Fixed Points, in: Proceedings of Conference on Calculation of Fixed Points, Clemson University, June 1974.
Author information
Authors and Affiliations
Additional information
This Research was partly supported by Project No. NR 047-021, ONR Contracts NO 0014-67-A-0126-0008 and NO 0014-67-A-0126-0009 with the Center for Cybernetic Studies, The University of Texas.
Rights and permissions
About this article
Cite this article
Charnes, A., Raike, W. & Stutz, J. V-positivity, poverses and the economic global unicity theorems of Gale and Nikaido. Zeitschrift für Operations Research 19, 115–121 (1975). https://doi.org/10.1007/BF01957171
Received:
Revised:
Issue Date:
DOI: https://doi.org/10.1007/BF01957171