#severi

2025-11-26

Heute Abend ist Nacht der Lichter in der #Erfurt'er Sankt #Severi Kirche. Ein #Taizé #Abend gestaltet von der #katholischen und #evangelischen #Jugend. #NachtDerLichter #TaizéGebet

2020-12-27

#Hodge on #Lefschetz's paper: similar principles applied to algebraic surfaces:
if ω =/=0 #holomorphic form on an algebraic surface, then i: sqrt {-1}}\,\omega ^ {\bar {\omega } is + , i^2=/=0, must b. =>ω => =/=0 #cohomology class,so its periods=/=0
Fixed a question of #Severi

2020-12-27

#Hodge on #Lefschetz's paper: similar principles applied to algebraic surfaces:
if ω =/=0 #holomorphic form on an algebraic surface, then i: sqrt {-1}}\,\omega ^ {\bar {\omega } is + , i^2=/=0, must b. =>ω => =/=0 #cohomology class,so its periods=/=0
Fixed a question of #Severi

2020-11-24

rank of NS(V) is finite
#Severi's theorem of base;
rank is Picard number of V, ρ(V). Geometrically NS(V) => algebraic equivalence classes of divisors on V,
using a stronger, non-linear equivalence relation than linear equivalence of divisors,

2020-11-24

rank of NS(V) is finite
#Severi's theorem of base;
rank is Picard number of V, ρ(V). Geometrically NS(V) => algebraic equivalence classes of divisors on V,
using a stronger, non-linear equivalence relation than linear equivalence of divisors,

Client Info

Server: https://mastodon.social
Version: 2025.07
Repository: https://github.com/cyevgeniy/lmst