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20022009
most citedExtended Theories of Gravity and their Cosmological and Astrophysical Applications

891 citations

Showing 2003Show all

7 papers · 1 filter

math-ph20033 cited

A New Geometric Proposal for the Hamiltonian Description of Classical Field Theories

Mauro Francaviglia, Marcella Palese, Ekkehart Winterroth

We consider the geometric formulation of the Hamiltonian formalism for field theory in terms of {\em Hamiltonian connections} and {\em multisymplectic forms}. In this framework the…

math-ph200316 cited

Global Generalized Bianchi Identities for Invariant Variational Problems on Gauge-natural Bundles

M. Palese, E. Winterroth

We derive both {\em local} and {\em global} generalized {\em Bianchi identities} for classical Lagrangian field theories on gauge-natural bundles. We show that globally defined gen…

math.NT2003

Fibrations et conjecture de Tate

Marc Hindry, Amilcar Pacheco, Rania Wazir

We describe the behaviour of the rank of the Mordell-Weil group of the Picard variety of the generic fibre of a fibration in terms of local contributions given by averaging traces…

physics.bio-ph20031 cited

Insights from a Novel Tumor Model: Indications for a Quantitative Link between Tumor Growth and Invasion

Thomas S. Deisboeck, Yuri Mansury, Caterina Guiot +2

Using our previously developed model we demonstrate here, that (1) solid tumor growth and cell invasion are linked, not only qualitatively but also quantitatively, that (2) the ons…

nucl-th20033 cited

The many levels pairing Hamiltonian for two pairs

M. B. Barbaro, R. Cenni, A. Molinari +1

We address the problem of two pairs of fermions living on an arbitrary number of single particle levels of a potential well (mean field) and interacting through a pairing force. Th…

physics.med-ph2003

Does tumor growth follow a 'universal law'?

caterina Guiot, Piero Giorgio Degiorgis, Pier Paolo Delsanto +2

A general model for the ontogenetic growth of living organisms has been recently proposed. Here we investigate the extension of this model to the growth of solid malignant tumors.…