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Philip Engel
http://math.columbia.edu/~engel
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Top Questions
13
votes
Structures between PL and smooth
at.algebraic-topology
homotopy-theory
differential-topology
manifolds
topological-manifolds
asked Jan 12, 2021 at 20:02
mathoverflow.net
8
votes
Contracting a curve of negative self-intersection on a surface
algebraic-surfaces
ag.algebraic-geometry
asked Mar 1, 2013 at 21:01
mathoverflow.net
7
votes
Modularity of certain theta series associated to hyperbolic lattice
nt.number-theory
modular-forms
lattices
theta-function
theta-series
asked Nov 14, 2016 at 3:18
mathoverflow.net
6
votes
Algebraic deformation invariance of Gromov-Witten invariants
ag.algebraic-geometry
gromov-witten-theory
asked Dec 14, 2020 at 17:14
mathoverflow.net
6
votes
Factors of polynomials of bounded height
nt.number-theory
polynomials
divisors-multiples
asked May 27, 2021 at 3:04
mathoverflow.net
5
votes
Is there a way to define Hecke operators "inherently" as certain endomorphisms of the Jacobian?
hecke-algebras
jacobians
asked Jul 29, 2010 at 4:48
mathoverflow.net
5
votes
Quotient of a smooth projective surface by an involution
ag.algebraic-geometry
complex-geometry
algebraic-surfaces
asked Feb 13, 2019 at 22:54
mathoverflow.net
Top Answers
11
Can any smooth hyperelliptic curve be embedded in a quadric surface?
mathoverflow.net
10
If $A$ is the ring of continuous functions on a genus $g$ surface, can the genus of $X$ be seen by simple algebra in $A$?
mathoverflow.net
6
Checkmate in $\omega$ moves?
mathoverflow.net
6
Solving algebraic problems with topology
mathoverflow.net
5
A very general complex torus is simple
mathoverflow.net
5
Examples of non-Kähler compact complex manifolds which satisfy the Dolbeault isomorphism
mathoverflow.net
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