http://www.openstarts.units.it:80/dspace/handle/10077/4313 2013-05-25T21:40:41Z http://www.openstarts.units.it:80/dspace/handle/10077/4333 Title: The representation of weighted quasimetric spaces Authors: Vitolo, Paolo Abstract: We show that every weighted quasi-metric space can be identified with a subspace of a space of some canonical type, which is constructed from a metric space. We also present a very simple method to construct a weighted quasi-metric space, as the graph of a function defined on a metric space, and show that every weighted quasi-metric space arises in this way. Similar results may be obtained if we drop the requirement that the weight function have nonnegative values. Type: Articolo 1999-01-01T00:00:00Z http://www.openstarts.units.it:80/dspace/handle/10077/4332 Title: Sui gruppi semplicemente connessi all'infinito Authors: Tanasi, Corrado Abstract: We obtain an extension of the simply connectivity at infinity to finitely presented groups Type: Articolo 1999-01-01T00:00:00Z http://www.openstarts.units.it:80/dspace/handle/10077/4331 Title: Quaternionic Kähler structures on the tangent bundle of a complex space form Authors: Tahara, M.; Marchiafava, S.; Watanabe, Y. Abstract: We construct a class of quaternionic Kähler structures on the tangent bundle of a complex space form of dimension 2n(n > 2), giving a generalization of the result in [13]. Type: Articolo 1999-01-01T00:00:00Z http://www.openstarts.units.it:80/dspace/handle/10077/4330 Title: Multi valued analytic functionals on compact Riemann surfaces of genus $g\geq 1$ Authors: Sabadini, Irene Abstract: In this paper we study analytic functionals on compact Riemann surfaces of genus $g\geq 1$, from the modern point of view of hyperfunctions. We will give some topological duality theorems and an integral representation for these functionals. Type: Articolo 1999-01-01T00:00:00Z