15 Feb
2009
15 Feb
'09
5:12 p.m.
Neil wrote: << Dan's lattice "Z_n" is of course the root lattice "A_{n-1}" of determinant n so any fundamental region has volume sqrt(n).
Oops, I inadvertently neglected to mention that anyone whose initials are N.J.A.S. is disqualified a priori (:-)>. (For everyone else, I'm looking for a proof based on first principles.) --Dan _____________________________________________________________________ "It don't mean a thing if it ain't got that certain je ne sais quoi." --Peter Schickele