This cluster of papers focuses on the theory of fractional Laplacian operators, including topics such as Sobolev spaces, nonlinear equations, regularity theory, variational problems, critical exponents, ground state solutions, elliptic equations, nonlocal operators, and Hamiltonian estimates.
Fractional Laplacian; Sobolev Spaces; Nonlinear Equations; Regularity Theory; Variational Problems; Critical Exponents; Ground State Solutions; Elliptic Equations; Nonlocal Operators; Hamiltonian Estimates