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Introductory Workshop:Enumerative Geometry Beyond Numbers
Introductory Workshop Enumerative Geometry Beyond Numbers
2017/12/20
This workshop will consist of expository mini-courses and lectures introducing various aspects of modern enumerative geometry, among which: enumeration via intersection theory on moduli spaces of curv...
Double Hurwitz numbers count branched covers of CP1 with fixed branch points,
with simple branching required over all but two points 0 and ∞, and the branching
over 0 and ∞ specified by ...
Double Hurwitz numbers count branched covers of CP1 with fixed branch points,
with simple branching required over all but two points 0 and ∞, and the branching
over 0 and ∞ specified by ...
Betti numbers of edge ideals of uniform hypergraphs
Betti number hypergraph Hilbert function Stanley-Reisner ring
2010/11/29
We describe the Betti numbers of the edge ideals I(G) of uniform hypergraphs G such that I(G) has linear graded free resolution.
Ternary Sums of Squares and Triangular Numbers
Primitive spinor exceptions ternary quadratic forms triangular numbers
2010/12/14
For any integer x, let Tx denote the triangular number x(x+1)2 .In this paper we give a omplete characterization of all the triples of positive integers ( , , ) for which the ternary sums x2+ Ty + T...