Segre surface [SEP] named after
Segre surface
In algebraic geometry, a Segre surface, studied by and , is an intersection of two quadrics in 4-dimensional projective space.
They are rational surfaces isomorphic to a projective plane blown up in 5 points with no 3 on a line, and are del Pezzo surfaces of degree 4, and have 16 rational lines. The term "Segre surface" is also occasionally used for various other surfaces, such as a quadric in 3-dimensional projective space, or the hypersurface
Liliana Segre
Liliana Segre (born 10 September 1930, Milan) is an Italian senator for life named by president Sergio Mattarella on 19 January 2018.
Born into a Jewish family in 1930, Segre was expelled from her school in her young age after the promulgation of Italian Racial Laws in 1938. In 1943 she was arrested with many people of her family and deported to the camp of Auschwitz. After 1990 she started to speak to the public, especially young people, about her experience.
Biography.
Born