Forced superlinear oscillations via Picone's identity.
Nonoscillation Criteria for Elliptic Equations of Order 2 m
Vengono stabiliti criteri di non oscillazione per equazioni a derivate parziali ellittiche d'ordine pari.
Generalized Picone's formula and forced oscillations in quasilinear differential equations of the second order
In the paper a comparison theory of Sturm-Picone type is developed for the pair of nonlinear second-order ordinary differential equations first of which is the quasilinear differential equation with an oscillatory forcing term and the second is the so-called half-linear differential equation. Use is made of a new nonlinear version of the Picone’s formula.
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