This topical collection is focused on recent advances in the study of nonlinear elliptic partial differential equations (PDEs), emphasizing theoretical developments, analytical techniques, and their applications. Elliptic PDEs play a fundamental role in modeling various phenomena in mathematics, physics, engineering, and the natural sciences. The collection aims to highlight cutting-edge research on the existence, regularity, and qualitative behavior of solutions to nonlinear elliptic problems. It also explores their connections to other areas of mathematics.
Topics of interest include, but are not limited to:
- Existence and multiplicity of solutions to nonlinear elliptic equations.
- Regularity theory and a priori estimates for elliptic PDEs.
- Critical exponents, blow-up phenomena, and singular solutions.
- Variational methods and their applications to elliptic problems.
- Elliptic equations on non-standard geometries, including the Heisenberg group and other sub-Riemannian structures.
- Fractional elliptic equations and non-local operators.
- Applications of elliptic PDEs in physics, biology, and engineering.
This collection aims to offer a comprehensive overview of the state-of-the-art in nonlinear elliptic PDEs, fostering interdisciplinary dialogue and addressing open problems in the field. Contributions that explore both theoretical and applied aspects are encouraged, with an emphasis on innovative methodologies and emerging trends.
Keywords: elliptic, partial differential equations, regularity theory, blow-up phenomena, critical exponents, variational methods, singular solutions