From the 1 of 4 linked papers with an AI index.
4 papers
Umbrella theorems for time-frequency representations
Paolo Boggiatto, Chiara Boiti, Alessandro Oliaro
The paper studies Umbrella Theorems—uncertainty principles that forbid a single square‑integrable function from dominating an infinite orthonormal family and its Fourier transforms…
Stability of global wave front sets by perturbations of frames
Chiara Boiti, David Jornet, Alessandro Oliaro
In this paper we consider the Gabor wave front set of ultradistributions in the frame of ultradifferentiable functions. We prove that such a wave front set, defined through a Gabor…
A Kirchhoff equation with infinite conservation laws
Chiara Boiti, Renato Manfrin
We show here that the quasilinear Kirchhoff-Pokhozhaev equation with , admits conservation law…
A third-order conservation law for the Kirchhoff-Pokhozhaev equation
Chiara Boiti, Renato Manfrin
We prove that the special Kirchhoff equation studied by Pokhozhaev admits a third-order conservation law. We further show that if the energy of the solution is sufficiently small,…