"Matematica, arte, tecnologia, cinema" of Michele Emmer, Mirella Manaresi (eds)

Dipartimento Di Matematica

We present a new technique for building effective and low cost preconditioners for sequences of shifted linear systems (A + αI)xα = b, where A is symmetric positive definite and α > 0. This technique updates a preconditioner for A, available in the form of an LDLT factorization, by modifying only the nonzero entries of the L factor in such a way that the resulting preconditioner mimics the diag...

Dottorato in Matematica- XXIV Ciclo Tesi di Dottorato in Matematica

Curriculum Vitae Michele Navarra

2006 – Present Associate professor in Pharmacology Department of Drug Sciences and Health Products (ex Faculty of Pharmacy) at the University of Messina, Viale Annunziata, 98168, Messina, (Italy) Research activity; reader in Pharmacology, Toxicology, Pharmacoeconomy and Drug Surveillance and Food Toxicology (University of Messina); reader in Pharmacokynetics at the Postgraduate School of Hospit...

Istituto Di Matematica Computazionale

The size of electronic data is currently growing at a faster rate than computer memory and disk storage capacities. For this reason compression appears always as an attractive choice, if not mandatory. However space overhead is not the only resource to be optimized when managing large data collections; in fact data turn out to be useful only when properly indexed to support search operations th...

RENZO RAMELLI and MICHELE BIANDA

The Zurich IMaging POLarimeter (ZIMPOL) developed at ETH Zurich and installed permanently at the Gregory Coudé Telescope at Istituto Ricerche Solari Locarno (IRSOL) allows a polarimetric precision down to 10 to be reached. This makes it possible to perform several accurate spectro-polarimetric measurements of scattering polarization and to investigate solar magnetic fields through the signature...