Now showing items 1-10 of 36
Curves of maximum genus in the range A and stick-figures
In this paper we show the existence of smooth connected space curves not contained in a surface of degree less than m, with genus maximal with respect to the degree, in half of the so-called range A. The main tool is a ...
The structure of an even liaison class
-We describe a structure called the Lazarsfeld-Rao property for even liaison classes in projective space. This property holds for many even liaison classes of curves in P3. We give a procedure for showing that an even ...
Il laboratorio di matematica nelle Indicazioni curricolari per la scuola italiana
Il labortaorio di matematica: come viene recepito e interpretato nelle indicazioni curricolari italiane.
Epistemology and didactis in Federigo Enriques
Analysis of the epistemological background of Federigo Enriques' didactics approach.
I nuovi programmi di matematica e statistica per il sistema dei licei = The new curricula of Mathematics and Statistics in the Italian system of senior high schools.
Rfilessione sull'evoluzione dei contenuti di statistica nelle Indicazioni Nazionali per i Licei
Tre “se” e tante domande
Vengono analizzate, alla luce della ricerca in didattica della matematica, alcune criticità del curricolo di matematica proposto per la nuova scuola del secondo ciclo di istruzione.
Irreducible families of curves with fixed cohomology
One of the classical ways for studying the problem of the classification of curves in the projective space was the investigation of the irreducible families of curves, and this approach led to the notion of Hilbert scheme. ...
A note on the postulation of maximal rank curves
Let s be the lowest degree of a surface containing a maximal rank curve Y. We want to compare the dimension of the space of the surfaces of degree s containing Y with the dimension of the space of the surfaces of degree ...
Construction of families of curves from finite length graded modules
We construct particular families of projective space curves starting from finite length graded modules, exhibiting several phenomena of specializations. The main tool is the Rao construction via a free resolution of the module.
Deficiency modules and specializations
Given a family of curves in the projective space we study how their deficiency modules can change. This has a geometrical translation in the problem of determining how the liaison class of a flat family of curves can change. ...