A new approach to the existence of zeros for nonlinear operators

by Paolo Cubiotti, Beatrice Di Bella
Published 1994-11-01

Existence of solutions to second-order boundary-value problems with small perturbations of impulses

by Gabriele Bonanno, Beatrice Di Bella, Johnny Henderson
Published 2013-05-01

Two positive solutions for nonlinear fourth-order elastic beam equations

by Giuseppina D'Aguì, Beatrice Di Bella, Patrick Winkert
Published 2019-05-01