Thermistor systems of p(x)-Laplace-type with discontinuous exponents via entropy solutions

Miroslav Bulíček; Annegret Glitzky; Matthias Liero

doi:10.3934/dcdss.2017035

Article Contents

2017, Volume 10, Issue 4: 697-713. Doi: 10.3934/dcdss.2017035

This issue Previous Article Modeling and analysis of reactive multi-component two-phase flows with mass transfer and phase transition the isothermal incompressible case Next Article Volume constrained minimizers of the fractional perimeter with a potential energy

Thermistor systems of p(x)-Laplace-type with discontinuous exponents via entropy solutions

1.
Mathematical Institute, Faculty of Mathematics and Physics, Charles University, Sokolovská 83,186 75 Praha 8, Czech Republic
2.
Weierstrass Institute for Applied Analysis and Stochastics, Mohrenstraße 39,10117 Berlin, Germany

^* Corresponding author: matthias.liero@wias-berlin.de
^* Corresponding author: matthias.liero@wias-berlin.de

Received: April 2016

Revised: September 2016

Published: July 2017

Abstract / Introduction Full Text(HTML) Related Papers Cited by

Abstract

We show the existence of solutions to a system of elliptic PDEs, that was recently introduced to describe the electrothermal behavior of organic semiconductor devices. Here, two difficulties appear: (ⅰ) the elliptic term in the current-flow equation is of p(x)-Laplacian-type with discontinuous exponent p, which limits the use of standard methods, and (ⅱ) in the heat equation, we have to deal with an a priori L¹ term on the right hand side describing the Joule heating in the device. We prove the existence of a weak solution under very weak assumptions on the data. Our existence proof is based on Schauder's fixed point theorem and the concept of entropy solutions for the heat equation. Here, the crucial point is the continuous dependence of the entropy solutions on the data of the problem.

Keywords:

Mathematics Subject Classification: 35J92, 35Q79, 80A20.

Citation:

Full Text(HTML)

Related Papers

Cited by

References

[1]	L. Boccardo, T. Gallouët and L. Orsina, Existence and uniqueness of entropy solutions for nonlinear elliptic equations with measure data, Ann. Inst. H. Poincaré Anal. Non Linéaire, 13 (1996), 539-551. doi: 10.1016/S0294-1449(16)30113-5.
[2]	M. Bulíček, A. Glitzky and M. Liero, Systems describing electrothermal effects with p(x)-Laplace like structure for discontinuous variable exponents, SIAM J. Math. Anal., 48 (2016), 3496-3514. doi: 10.1137/16M1062211.
[3]	G. Cimatti, Remark on the existence and uniqueness for the thermistor problem under mixed boundary conditions, Quart. Appl. Math., 47 (1989), 117-121. doi: 10.1090/qam/987900.
[4]	G. Cimatti, Remark on the thermistor problem with rapidly growing conductivity, Applicable Analysis, 80 (2007), 133-140. doi: 10.1080/00036810108840985.
[5]	L. Diening, P. Harjulehto, P. Hästö and M. Ružička, Lebesgue and Sobolev Spaces with Variable Exponents, Lecture Notes in Mathematics, Vol. 2017, Springer, Berlin, 2011. doi: 10.1007/978-3-642-18363-8.
[6]	A. Fischer, T. Koprucki, K. Gärtner, J. Brückner, B. Lüssem, K. Leo, A. Glitzky and R. Scholz, Feel the heat: Nonlinear electrothermal feedback in organic LEDs, Adv. Funct. Mater., 24 (2014), 3367-3374. doi: 10.1002/adfm.201303066.
[7]	A. Fischer, P. Pahner, B. Lüssem, K. Leo, R. Scholz, T. Koprucki, K. Gärtner and A. Glitzky, Self-heating, bistability, and thermal switching in organic semiconductors, Phys. Rev. Lett., 110 (2013), 126601. doi: 10.1103/PhysRevLett.110.126601.
[8]	H. Gajewski, K. Gröger and K. Zacharias, Nichtlineare Operatorgleichungen und Operatordifferentialgleichungen, Akademie-Verlag, Berlin, 1975. doi: 10.1002/mana.19750672207.
[9]	A. Glitzky and M. Liero, Analysis of p(x)-Laplace thermistor models describing the electrothermal behavior of organic semiconductor devices, Nonlinear Anal. Real World Appl., 34 (2017), 536-562. doi: 10.1016/j.nonrwa.2016.09.015.
[10]	A. Kufner, O. John and S. Fučik, Function Spaces, Academia Publishing House of the Czechoslovak Academy of Sciences, Prague, 1977.
[11]	C. Leone and A. Porretta, Entropy solutions for nonlinear elliptic equations in L¹, Nonlinear Analysis, Theory, Methods & Applications, 32 (1998), 325-334. doi: 10.1016/S0362-546X(96)00323-9.
[12]	M. Liero, T. Koprucki, A. Fischer, R. Scholz and A. Glitzky, p-Laplace thermistor modeling of electrothermal feedback in organic semiconductor devices, Zeitschrift für Angewandte Mathematik und Physik, 66 (2015), 2957-2977. doi: 10.1007/s00033-015-0560-8.
[13]	P. Lindqvist, Notes on the p-Laplace Equation, Report 102, University of Jyväskyla, Department of Mathematics and Statistics, ISBN: 951-39-2586-2,2006.
[14]	L. Orsina, Elliptic equations with measure data, 2013, URL http://www1.mat.uniroma1.it/people/orsina/AS1213/AS1213.pdf.
[15]	T. Roubíček, Nonlinear Partial Differential Equations with Applications, International Series of Numerical Mathematics, 153, Springer, Basel, 2013.