seminar announcement

[Emilia Mezzetti]

Seminar announcement
University of Trieste

Friday, May 13, 2016, at 11 a.m.

Pietro De Poi (Università di Udine)

will speak on

"A Severi type theorem for surfaces in P^6."

ABSTRACT
Let X be a projective, non-degenerate, 
irreducible smooth variety of dimension n of P^N.
After giving the definition of generalised 
OADP-variety, i.e. varieties $X$ such

a) n(k+1) - (N-r)(k-r) + r = N,
b) there is one apparent (k+1)-secant (r-1)-space 
to a generic projection of X from a point,

we concentrate in studying generalised 
OADP-surfaces in low dimensional projective 
spaces, and
our main result is the classification of smooth 
surfaces  in P^6 with one 4-secant
plane through the general point of P^6.

(Joint work with G. Ilardi and A. Verra)

VENUE: Seminar Room  (DMG, Sezione di Matematica 
e Informatica, H2 building, Via Valerio 12/1, 3rd 
floor, room 334)

Everybody interested is much welcome to attend.

-- 
Prof. Emilia Mezzetti

Dipartimento di Matematica e Geoscienze
Sezione di Matematica e Informatica
Universita' di Trieste
Via Valerio 12/1
34127 Trieste, Italia

Stanza 227, II piano
e-mail: mezzette at units.it
tel. studio (+39) 040 558 2650
skype: emiliamezzetti
tel. Segreteria Dip.: (+39) 040 558 2635
fax: (+39) 040 558 2636
http://www.dmi.units.it/~mezzette/