Skip to main content

Timeline for Intersection on Singular Varieties

Current License: CC BY-SA 3.0

3 events
when toggle format what by license comment
Dec 8, 2023 at 14:54 comment added David Rydh Yes, this example can be found in Fulton's introduction to intersection theory (end of section 5.2, p. 41). For this cone, moving lemmas also fail (Fulton 11.4.7) and Serre's multiplicity conjecture is false (Dutta–Hochster–McLaughlin 1985).
Mar 6, 2012 at 18:32 comment added Sándor Kovács That cone is the typical example of a non-$\mathbb Q$-factorial singularity. See my answer below how this is relevant.
Mar 6, 2012 at 18:29 history answered Tom Graber CC BY-SA 3.0