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- Centre National de la Recherche ScientifiqueFR11 papers
- Istituto Nazionale di Fisica Nucleare, Sezione di Roma TreIT11 papers
- University of Rome Tor VergataIT11 papers
- Sapienza University of RomeIT10 papers
- Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di FrascatiIT9 papers
- Istituto Nazionale di Fisica Nucleare, Sezione di Roma IIT9 papers
- European Organization for Nuclear ResearchCH7 papers
- Centre de Physique ThéoriqueFR6 papers
- Charles UniversityCZ6 papers
- Czech Academy of SciencesCZ6 papers
- European Space Astronomy CentreES6 papers
- Istituto Nazionale di Fisica Nucleare, Sezione di PadovaIT6 papers
11 papers · 1 filter
The Intimate Link Between Accretion and BELR
F. Nicastro, A. Martocchia, G. Matt
In this paper I present evidence suggesting that the absence or presence of Hidden Broad Line Regions (HBLRs) in Seyfert 2 galaxies is regulated by the rate at which matter accrete…
Star operations and Pullbacks
Marco Fontana, Mi Hee Park
In this paper we study the star operations on a pullback of integral domains. In particular, we characterize the star operations of a domain arising from a pullback of ``a general…
Quasiclassical theory of charge transport in disordered interacting electron systems
P. Schwab, R. Raimondi
We consider the corrections to the Boltzmann theory of electrical transport arising from the Coulomb interaction in disordered conductors. In this article the theory is formulated…
Essential domains and two conjectures in dimension theory
Marco Fontana, Salah Kabbaj
This note investigates two long-standing conjectures on the Krull dimension of integer-valued polynomial rings and of polynomial rings, respectively, in the context of (locally) es…
Umbral Calculus, Difference Equations and the Discrete Schroedinger Equation
Decio Levi, Piergiulio Tempesta, Pavel Winternitz
We discuss umbral calculus as a method of systematically discretizing linear differential equations while preserving their point symmetries as well as generalized symmetries. The m…
Local--Global Properties for Semistar Operations
Marco Fontana, Pascual Jara, Eva Santos
We study the "local" behavior of several relevant properties concerning semistar operations, like finite type, stable, spectral, e.a.b. and a.b. We deal with the "global" problem o…