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earned this badge 35 times.
Max Noether's residual intersection theorem (Fundamentalsatz): importance and applications
Awarded Nov 22, 2023 at 17:55
Bounding the derivative of a holomorphic function on a disk by its absolute value
Awarded Sep 6, 2023 at 9:27
Complement to an open affine subvariety in an irreducible projective one
Awarded Jan 13, 2022 at 21:12
What is a conic bundle and why is it called so?
Awarded Jan 6, 2022 at 12:26
The fundamental group of a $3$-manifold with a boundary of genus $>0$
Awarded Oct 27, 2021 at 15:20
Lunch seminars for PhD students
Awarded Oct 16, 2021 at 4:46
Higher dimensional Bezout via Hilbert polynomials: a reference
Awarded Sep 14, 2021 at 10:27
The group of isometries of a manifold is a Lie group, isn't it?
Awarded Jul 30, 2021 at 1:57
Locally free sheaves trivial on fibers of a flat projective morphism
Awarded Jan 31, 2021 at 20:35
Great graduate courses that went online recently
Awarded Jan 12, 2021 at 7:50
Today's world record on the Betti numbers of Calabi-Yau three-folds.
Awarded Jan 8, 2021 at 15:22
Fixing a mistake in "An introduction to invariants and moduli"
Awarded Jan 4, 2021 at 5:01
A simple minded Poincare duality for orbifolds?
Awarded Oct 16, 2020 at 22:01
Reading list for Equivariant Cohomology
Awarded Aug 16, 2020 at 0:48
Linear algebra underlying quantum entanglement?
Awarded Mar 6, 2020 at 19:25
Two equivalent irreducible representations given by integer matrices
Awarded Feb 3, 2020 at 17:45
Infinite power of in ideal in a Noetherian ring
Awarded Nov 13, 2019 at 18:15
A question about an application of Molien's formula to find the generators and relations of an invariant ring
Awarded Feb 21, 2019 at 14:50
Injective morphism from curves to $\mathbb CP^2$
Awarded Dec 19, 2018 at 16:20
How to disjoint two cycles with zero intersection?
Awarded Nov 20, 2018 at 15:05
A "geometric" insight into a proof of Krull intersection theorem?
Awarded Sep 13, 2018 at 19:10
The geometric median of a triangle
Awarded Sep 12, 2018 at 13:25
A question on deformations of Theta divisor in the Jacobian of a complex curve
Awarded Jan 23, 2017 at 19:56
If a polynomial f is irreducible then (f) is radical, without unique factorization?
Awarded Apr 27, 2016 at 22:05
"Classical" consequences of Bezout's theorem in dimensions $>2$
Awarded Sep 24, 2015 at 13:23
"Arithmetic genus" of a plane curve singularity.
Awarded Aug 4, 2015 at 9:21
What is "augmented algebra"?
Awarded Nov 8, 2014 at 22:28
A geometric reference for (affine) Gorenstein varieties and singularities
Awarded Sep 8, 2013 at 13:40
Unique factorisation and the fact that $\mathbb A^2-0$ is not an affine variety?
Awarded Apr 5, 2013 at 8:35
A finitely generated $\mathbb{Z}$-algebra that is a field has to be finite
Awarded Dec 28, 2012 at 7:05
Examples in mirror symmetry that can be understood.
Awarded Oct 18, 2012 at 4:05
How to memorise (understand) Nakayama's lemma and its corollaries?
Awarded Feb 12, 2012 at 19:50
Proofs of Mordell-Weil theorem
Awarded Apr 13, 2011 at 20:35
Explaining the concept of projective space: notes for students
Awarded Mar 24, 2011 at 23:50
Is there a "geometric" intuition underlying the notion of normal varieties?
Awarded Mar 10, 2011 at 23:20

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