15 citations · 27 across the 3 of their papers we have counts for
4 papers
Finiteness of Ulam Polynomials
Antonio J. Di Scala, Oscar Macia
A polynomial whose coeffcients are equal to its roots is called a Ulam polynomial. In this paper we show that for a given degree n there exists a finite number of Ulam polynomials…
Real symplectic formulation of local special geometry
Sergio Ferrara, Oscar Macia
We consider a formulation of local special geometry in terms of Darboux special coordinates , . A general formula for the metric is obtained which is man…
Observations on the Darboux coordinates for rigid special geometry
Sergio Ferrara, Oscar Macia
We exploit some relations which exist when (rigid) special geometry is formulated in real symplectic special coordinates . The central role of the real $…
Contractions of sigma models and integration of massive modes
M. A. Lledo, O. Macia
We show how the integration of massive modes after a spontaneous symmetry breaking in a sigma model can often be interpreted as a contraction, induced by a group contraction, of th…