Keywords: fractional Laplacian, nonlocal problems, variational method, Fountain theorem, integrodifferential operator, superlinear nonlinearitiesFull text (file, 620,65 KB)
Keywords: nonhomogeneous differential operator, indefinite potential, singular term, concave and convex nonlinearities, truncation, comparison principles, nonlinear regularity, nonlinear maximum principleFull text (file, 366,33 KB)
Keywords: variable exponent spaces, regularity theory, maximum principle, concave and convex nonlinearities, positive solutions, comparison principlesFull text (file, 650,13 KB)