42 citations · 48 across the 11 of their papers we have counts for
7 papers · 1 filter
On the Orbits of not Expansive Mappings in Metric Spaces
Sergio Venturini
Let $\MSpace$ be a locally compact metric space and let $\pMap:\MSpace\to\MSpace$ be a not expansive map. We prove that for each $\ppa_0\in\MSpace$ the sequence $\ppa_0,\pMap(\ppa_…
On Cimmino Integrals as Residues of Zeta Functions
Sergio Venturini
The following paper is a variation on a theme of Gianfranco Cimmino on some integral representation formulas for the solution of a linear equations system. Cimmino was probably mot…
Complex Gradient Systems
Giuseppe Tomassini, Sergio Venturini
Let be a complex manifold of complex dimension . We say that the functions and the vector fields on form a \emph{complex gradient system}…
Adapted complex tubes on the symplectization of pseudo-Hermitian manifolds
Giuseppe Tomassini, Sergio Venturini
Let be a pseudo-Hermitian space of real dimension , that is $\RManBase$ is a $\CR-$manifold of dimension and is a contact form on giving the Levi distr…
Contact geometry of one dimensional holomorphic foliations
Giuseppe Tomassini, Sergio Venturini
Let V be a real hypersurface of class C^k, k>=3, in a complex manifold M of complex dimension n+1, HT(V) the holomorphic tangent bundle to V giving the induced CR structure on V. L…
Volumes, Traces and Zeta Functions
Sergio Venturini
Let be a quadratic form over . The Epstein zeta function associated to is a well known function in number theory. We generalize the construction of the…