Timeline for Log canonical pairs and ample divisors
Current License: CC BY-SA 3.0
4 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Dec 13, 2011 at 11:05 | comment | added | Sándor Kovács | The preimage of $\Delta$ on a log resolution is a simple normal crossing divisor. Take the intersection of an arbitrary subset of the irreducible components. The image of this on $X$ is a stratum. The point is, that if $B$ is general, then it will be transversal to any centers of any exceptional divisors and to $\Delta$. Hence its pull-back is the same as its strict transform and the same map is still a log resolution if you add $B$ to $\Delta$. | |
| Dec 13, 2011 at 10:08 | comment | added | Gianni Bello | Thank you very much! Just to br sure: what do you exactly mean by "the strata related to the resolution"? Are they something like the varieties that need to be blown-up in order to log-resolve the pair? | |
| Dec 13, 2011 at 10:06 | vote | accept | Gianni Bello | ||
| Dec 13, 2011 at 0:09 | history | answered | Sándor Kovács | CC BY-SA 3.0 |