# Brenin

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# 14 Questions

 16 The classical number $2875$ of lines on the quintic, as a DT invariant 7 The importance of generating series in Algebraic Geometry 5 Coherent sheaves on $\mathbb C^2$ and commuting matrices 4 Which power series in $K_0(\textrm{Var}_\mathbb C)[[t]]$ are exponents? 4 On the generating functions for Euler characteristic of Hilbert schemes of points

# 503 Reputation

 +10 Understanding the obstruction cone of a symmetric obstruction theory +10 What does the Chern-Schwartz-MacPherson class of a singular variety look like? +5 On the local Euler obstruction for singular varieties +5 Restriction of motivic nearby cycles

 5 Topological properties of schemes 4 examples of moduli functors for which coarse moduli space does not exists

# 9 Tags

 9 ag.algebraic-geometry × 16 0 intersection-theory × 2 4 moduli-spaces × 3 0 examples 4 stacks × 2 0 perverse-sheaves 4 coarse-moduli-spaces 0 complex-manifolds 0 algebraic-curves × 2

# 2 Accounts

 Mathematics 6,472 rep 11032 MathOverflow 503 rep 412
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