F

G

FIORENTINO , G.

Last name: FIORENTINO

First name: G.

1993 (v1)

Publication

Metadata-only

C. G. preconditioning for Toeplitz matrices

Di Benedetto, F. Fiorentino, G. Serra, S.

We consider the problem of solving a Toeplitz system of equations by conjugate gradient method. When a sequence of nested Toeplitz matrices is associated to a function, the spectral behaviour of the matrices involved is closely related to the analytical properties of the generating function. Thus, it is possible to devise efficient...

Uploaded on: May 13, 2023
2017 (v1)

Journal article

Metadata-only

Variable Stars in Local Group Galaxies. III. And VII, NGC 147, and NGC 185: Insight into the Building Blocks of the M31 Halo

Monelli, M. Fiorentino, G. Bernard, E. J.

We present the discovery of 1568 RR Lyrae stars in three of the most luminous M31 satellites: And VII (573), NGC 147 (177), and NGC 185 (818). We use their properties to study the formation history of Local Group spiral haloes, and in particular, to infer about the nature of their possible building blocks by comparison with available data for...

Uploaded on: December 3, 2022