1. Monotonicity formulas for coupled elliptic gradient systems with applications;Fazly;Adv Nonlinear Anal,2019
2. Weakly coupled elliptic systems and positivity;Mitidieri;Math Nachr,1995
3. Qualitative analysis of nonlinear elliptic partial differential equations: Monotonicity, analytic and variational methods;Rădulescu,2008
4. Stable solutions of elliptic partial differential equations;Dupaigne,2011
5. Fundamentals: Solving the Poisson equation;Hans,2016