Title: A note on the Farkas’ Lemma and the maximum principle for elliptic PDEs
Montes Taurus J. Pure Appl. Math. / ISSN: 2687-4814
Article ID: MTJPAM-D-24-00049; Volume 7 / Issue 3 / Year 2025, Pages 12-15
Document Type: Research Paper
Author(s): Jesús Ildefonso Díaz
a
aInstituto de Matematica Interdisciplinar (IMI), Dpto. Análisis Matemático y Matemática Aplicada, Universidad Complutense de Madrid, 28040 Madrid, Spain
Received: 15 April 2024, Accepted: 16 July 2024, Published: 27 July 2024
Corresponding Author: Jesús Ildefonso Díaz (Email address: jidiaz@ucm.es)
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Abstract
Motivated by a lecture by Richard Aron in the Complutense University of Madrid, we present an extension of the 1902 Farkas’ Lemma on combination of nonnegative elements to the framework of the maximum principle for higher order elliptic partial differential equations.
Keywords: Farkas’ Lemma, higher order elliptic partial differential equations, maximum principle
References:- R. Aron, El Lema de Farkas en el caso bilineal, Lecture at the Colloquim de Análisis Matemático, Universidad Complutense de Madrid, October 14, 2021.
- R. Aron, D. García, D. Pinasco and I. Zalduendo, Farkas’ lemma in the bilinear setting and evaluation functionals, Rev. R. Acad. Cienc. Exactas Fís. Nat. Ser. A Mat. RACSAM 117, 2023; https://doi.org/10.1007/s13398-022-01337-y.
- I. Arregui, J. I. Díaz and C. Vázquez, A nonlinear bilaplacian equation with hinged boundary conditions and very weak solutions: Analysis and numerical solution, Rev. R. Acad. Cienc. Exactas Fís. Nat. Ser. A Mat. RACSAM 108, 867–879, 2014; https://doi.org/10.1007/s13398-013-0148-0.
- S. Boyd and L. Vandenberghe, Convex optimization, Cambridge University Press, New York, 2004.
- H. Brezis, Functional analysis, sobolev spaces and partial differential equations, Springer, New York, 2010.
- J. I. Díaz, On the very weak solvability of the beam equation, Rev. R. Acad. Cienc. Exactas Fís. Nat. Ser. A Mat. RACSAM 105, 167–172, 2011; https://doi.org/10.1007/s13398-011-0017-7.
- J. I. Díaz, Non Hookean beams and plates: Very weak solutions and their numerical analysis, Int. J. Numer. Anal. Model. 11 (2), 315–331, 2014.
- J. Farkas’, Über die Theorie der einfachen Ungleichungen, J. Reine Angew. Math. 124, 1–24, 1902.
Cite this article
How to cite this article: J. I. Díaz, A note on the Farkas’ Lemma and the maximum principle for elliptic PDEs, Montes Taurus J. Pure Appl. Math. 7 (3), 12-15, 2025; Article ID: MTJPAM-D-24-00049.