Geodesic
On the potential theory of some systems of coupled PDEs
Commentationes Mathematicae Universitatis Carolinae, Tome 57 (2016) no. 2, pp. 135-154.

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In this paper we study some potential theoretical properties of solutions and super-solutions of some PDE systems (S) of type $L_1u =-\mu_1v$, $L_2v =-\mu_2u$, on a domain $D$ of $\mathbb R^d$, where $\mu_1$ and $\mu_2$ are suitable measures on $D$, and $L_1$, $L_2$ are two second order linear differential elliptic operators on $D$ with coefficients of class $\mathcal C^\infty$. We also obtain the integral representation of the nonnegative solutions and supersolutions of the system (S) by means of the Green kernels and Martin boundaries associated with $L_1$ and $L_2$, and a convergence property for increasing sequences of solutions of (S).
DOI : 10.14712/1213-7243.2015.165
Classification : 31B05, 31B10, 31B35
Keywords: harmonic function; superharmonic function; potential; elliptic linear differential operator; kernel; coupled PDEs system; Kato measure 
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Aslimani, Abderrahim; El Ghazi, Imad; El Kadiri, Mohamed; Haddad, Sabah. On the potential theory of some systems of coupled PDEs. Commentationes Mathematicae Universitatis Carolinae, Tome 57 (2016) no. 2, pp. 135-154. doi : 10.14712/1213-7243.2015.165. http://geodesic.mathdoc.fr/articles/10.14712/1213-7243.2015.165/

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