R. Giambò

activity

20012025

most citedNew solutions of Einstein equations in spherical symmetry: the Cosmic Censor to the court

63 citations · 493 across the 42 of their papers we have counts for

collaborators

Showing 2015Show all

3 papers · 1 filter

gr-qc2015★ 14 cited

Negative potentials and collapsing universes II

Roberto Giambò, John Miritzis, Koralia Tzanni

Completing a previous analysis started in [1], we study flat Friedmann--Lema\^ıtre--Robertson--Walker (FLRW) models with a perfect fluid matter source and a scalar field nonminimal…

math.DS2015

Functions on the sphere with critical points in pairs and orthogonal geodesic chords

R. Giambò, F. Giannoni, P. Piccione

Using an estimate on the number of critical points for a Morse-even function on the sphere $S^{m}$ , $m \geq 1$ , we prove a multiplicity result for orthogonal geodesic chords in…

math.DS2015★ 1 cited

Multiple brake orbits in $m$ -dimensional disks

R. Giambò, F. Giannoni, P. Piccione

Let $(M, g)$ be a (complete) Riemannian surface, and let $Ω \subset M$ be an open subset whose closure is homeomorphic to a disk. We prove that if $\partial Ω$ is smooth and it satisf…

Negative potentials and collapsing universes II

Functions on the sphere with critical points in pairs and orthogonal geodesic chords

Multiple brake orbits in m-dimensional disks

Multiple brake orbits in $m$ -dimensional disks