2 papers
math.AG2025
On the rationality problem for low degree hypersurfaces
Jan Lange, Stefan Schreieder
We show that a very general hypersurface of degree d at least 4 and dimension at most over a field of characteristic different from 2 does not admit a decomposition…
math.AG2025
Torsion order and irrationality of complete intersections
Jan Lange, Guoyun Zhang
We provide new logarithmic lower bounds for the torsion order of a very general complete intersection in projective space as well as a very general hypersurface in products of proj…