3 papers
math.GM2026
Asymptotic Convergence of Weniger's -Transformation for a Class of Superfactorially Divergent Stieltjes Series
Riccardo Borghi
The resummation of superfactorially divergent series represents a significant computational challenge in mathematical physics. In the present paper the resummation of a specific cl…
physics.optics2025
On the Twistability of Partially Coherent, Schell-model Sources
Riccardo Borghi
In this paper, the problem of assessing the twistability of a given bona fide cross-spectral density is tackled for the class of Schell-model sources, whose shift-invariant degree…
math.NA2024
Factorial Series Representation of Stieltjes Series Converging Factors
Riccardo Borghi
The practical usefulness of Levin-type nonlinear sequence transformations as numerical tools for the summation of divergent series or for the convergence acceleration of slowly con…