Local singular characteristics on R-2

期刊： BOLLETTINO DELLA UNIONE MATEMATICA ITALIANA, ; ()

The singular set of a viscosity solution to a Hamilton-Jacobi equation is known to propagate, from any noncritical singular point, along singular char......

Global attractor for a smectic-A liquid crystal model in 2D

期刊： BOLLETTINO DELLA UNIONE MATEMATICA ITALIANA, 2018; 11 (4)

We consider a simplified smectic-A liquid crystal model in two dimensional bounded domain. The model consists of a Navier-Stokes equation governing th......

MasterPVA and WAlg: Mathematica packages for Poisson vertex algebras and classical affine W-algebras

期刊： BOLLETTINO DELLA UNIONE MATEMATICA ITALIANA, 2018; 11 (4)

We give an introduction to the Mathematica packages MasterPVA and MasterP-VAmulti used to compute.-brackets in Poisson vertex algebras, which play an ......

Young's inequalities and Hausdorff-Young inequalities on Herz spaces

期刊： BOLLETTINO DELLA UNIONE MATEMATICA ITALIANA, 2018; 11 (4)

We establish the Young inequalities and the Hausdorff-Young inequalities on Herz spaces by using real interpolation.

Tangents to Chow groups: on a question of Green-Griffiths

期刊： BOLLETTINO DELLA UNIONE MATEMATICA ITALIANA, 2018; 11 (2)

We examine the tangent groups at the identity, and more generally the formal completions at the identity, of the Chow groups of algebraic cycles on a ......

Some characterizations of quasi-Frobenius rings

期刊： BOLLETTINO DELLA UNIONE MATEMATICA ITALIANA, 2017; 10 (4)

A ring R is called right WP-injective if for any 0 not equal a is an element of R, there exist b is an element of R such that ab = ba not equal 0 and ......