<we><edit> <!-- questions and answers -->
algorithms
smooth-manifolds
nt.number-theory
mp.mathematical-physics
algebraic-number-theory
prime-numbers
gn.general-topology
operator-theory
st.statistics
diophantine-equations
fa.functional-analysis
convex-polytopes
group-cohomology
at.algebraic-topology
set-theory
discrete-geometry
mg.metric-geometry
finite-groups
integration
cv.complex-variables
ap.analysis-of-pdes
galois-theory
algebraic-groups
rt.representation-theory
ag.algebraic-geometry
ag.algebraic-geometry
The set of points of the fiber product of two algebraic stacks and the fiber product of the sets of points of two algebraic stacks
ag.algebraic-geometry
algebraic-curves
resolution for the du Val's $(A_3)$-singularity
ag.algebraic-geometry
dg.differential-geometry
singularity-theory
resolution-of-singularities
Lefschetz Hyperplane theorem via Kodaira Vanishing
ag.algebraic-geometry
at.algebraic-topology
complex-geometry
kahler-manifolds
Have there been any updates on Mochizuki's proposed proof of the abc conjecture?
ag.algebraic-geometry
nt.number-theory
arithmetic-geometry
abc-conjecture
Lines in upper half-space
ag.algebraic-geometry
hyperbolic-geometry
Image of an isotropic manifold under lagrangian correspondence is isotropic?
sg.symplectic-geometry
ag.algebraic-geometry
lagrangian-submanifolds
isotropic-submanifolds
points with small U stabilizer on a spherical variety
ag.algebraic-geometry
rt.representation-theory
algebraic-groups
bruhat-order
spherical-varieties
Examples of groups that play an important role in Arithmetic geometry?
ag.algebraic-geometry
nt.number-theory
gr.group-theory
arithmetic-geometry
Applications of algebraic geometry to machine learning
ag.algebraic-geometry
st.statistics
Existence of birational sections over a center of an exceptional divisor
ag.algebraic-geometry
birational-geometry
On factorization theorem of toric birational morphisms
ag.algebraic-geometry
birational-geometry
toric-varieties
algebraic-combinatorics
When is a function a power series with integer coefficients in $\mathbb{N}$
ag.algebraic-geometry
reference-request
cv.complex-variables
power-series
Negative curves on surface of general type
ag.algebraic-geometry
complex-geometry
Blow-ups of toric varieties
ag.algebraic-geometry
ac.commutative-algebra
toric-varieties
Variety that resembles a cone on the projective line
ag.algebraic-geometry
Hilbert scheme of points and passing curves
ag.algebraic-geometry
hilbert-schemes
enumerative-geometry
Does a $K_{\upsilon}$-point of a variety $V$ give a point of $V$ in $K_{(\upsilon)}=K^{sep}\cap K_{\upsilon}$ for a global field $K$?
ag.algebraic-geometry
nt.number-theory
global-fields
Vanishing of homology for hyperelliptic locus
ag.algebraic-geometry
reference-request
moduli-spaces
homology
What's a (infinity-) semi-stack?
ag.algebraic-geometry
stacks
infinity-categories
representations of an algebraic group and extension of scalars
ag.algebraic-geometry
rt.representation-theory
algebraic-groups
Fundamental group of the complement homogeneous variety in $\mathbb{C}P^{n-1}$
ag.algebraic-geometry
at.algebraic-topology
complex-geometry
Set Theory, Triangles, and Mathematical Spaces
ag.algebraic-geometry
set-theory
gt.geometric-topology
Has Kac's conjecture (*), from "Infinite root systems, representations of graphs and invariant theory", been proved?
ag.algebraic-geometry
rt.representation-theory
algebraic-groups
How to test a divisor is or not the fixed part of a linear system on algebraic surface
ag.algebraic-geometry
Number field analog of Artin-Tate $\Rightarrow$ BSD?
ag.algebraic-geometry
nt.number-theory
arithmetic-geometry
etale-cohomology
motives
Locus where a vector bundle is null
ag.algebraic-geometry
dg.differential-geometry
vector-bundles
riemann-surfaces
Phantoms and strongly exceptional collections
ag.algebraic-geometry
vector-bundles
derived-categories
Automorphism of $\mathbb{P}_A^n$
ag.algebraic-geometry
Hartshorne's Conjectures about Algebraic Bundles?
ag.algebraic-geometry
fibre-bundles
gauge-theory
ample-bundles
combination of two duality theorems
ag.algebraic-geometry
cohomology
etale-cohomology
Poincaré duality for motivic cohomology
ag.algebraic-geometry
etale-cohomology
algebraic-k-theory
motives
motivic-cohomology
Behaviour of (principal) polarizations of (singular) surfaces under birational maps
ag.algebraic-geometry
abelian-varieties
birational-geometry
Does every smooth, projective morphism to $\mathbb{C}P^1$ admit a section?
ag.algebraic-geometry
Cluster algebra structure on the coordinate ring of $Mat_3$
ag.algebraic-geometry
rt.representation-theory
linear-algebra
cluster-algebras
Concrete example of $\infty$-categories
higher-category-theory
at.algebraic-topology
ag.algebraic-geometry
mp.mathematical-physics
lo.logic
Current state of Serre's Motives conjectures in Seattle
ag.algebraic-geometry
arithmetic-geometry
motives
algebraic-cycles
Queries about covering map and ramification
ag.algebraic-geometry
galois-theory
riemann-surfaces
What do heat kernels have to do with the Riemann-Roch theorem and the Gauss-Bonnet theorem?
ag.algebraic-geometry
dg.differential-geometry
ap.analysis-of-pdes
manifolds
index-theory
Why are supplemented line bundles the correct generalization of "lines"?
ag.algebraic-geometry
Linear homogenous polynomials that generates one quadratic polynomial
ag.algebraic-geometry
ac.commutative-algebra
complex-geometry
polynomials
algebraic-surfaces
Computation of associated graded ring
ag.algebraic-geometry
ac.commutative-algebra
local-rings
local
Is irreducibility of an affine $k$-scheme, an open condition?
ag.algebraic-geometry
ac.commutative-algebra
Idea behind Grothendieck's proof that formally smooth implies flat?
ag.algebraic-geometry
reference-request
ac.commutative-algebra
schemes
flatness
Closed points and the absolute Galois group
ag.algebraic-geometry
ac.commutative-algebra
schemes
galois-groups
Picard rank of Jacobian
ag.algebraic-geometry
algebraic-curves
jacobians
A covering lemma of Kawamata
ag.algebraic-geometry
birational-geometry
minimal-model-program
Irreducible components of $\partial \bar{H}_{g,n}$
ag.algebraic-geometry
reference-request
moduli-spaces
stacks
When are Hilbert schemes smooth?
ag.algebraic-geometry
hilbert-schemes
Presentations of algebraic stacks that are surjective on k points
ag.algebraic-geometry
algebraic-stacks
Why linearization leads to arithmetization?
ag.algebraic-geometry
nt.number-theory
intuition
motives
tannakian-category
Interpretation of the cohomology of compact lie groups and their classifying spaces in DAG?
ag.algebraic-geometry
at.algebraic-topology
rt.representation-theory
homotopy-theory
derived-algebraic-geometry
Does birational imply D-equivalent?
ag.algebraic-geometry
reference-request
derived-categories
birational-geometry
Triviality of torsors after a field extension of bounded degree
ag.algebraic-geometry
abelian-varieties
galois-cohomology
how many bitangents on this hypotrochoid?
ag.algebraic-geometry
enumerative-geometry
Dualizing sheaf of moduli space of vector bundles (in co prime case )
ag.algebraic-geometry
reference-request
dg.differential-geometry
vector-bundles
moduli-spaces
Are all formal schemes *really* Ind-schemes?
ag.algebraic-geometry
ct.category-theory
schemes
Axiomatic characterization of virtual fundamental classes?
ag.algebraic-geometry
sg.symplectic-geometry
moduli-spaces
Curves contracted by a rational map
ag.algebraic-geometry
projective-geometry
birational-geometry
divisors
line-bundles
Dualising sheaf of an Artin Stack
ag.algebraic-geometry
moduli-spaces
algebraic-stacks
Are $\overline{\mathbb{Q}}$-models of smooth affine curves over $\mathbb{C}$ with finitely many automorphisms unique?
ag.algebraic-geometry
ac.commutative-algebra
Degrees of polynomials vanishing to various orders on a set of points
ag.algebraic-geometry
polynomials
Chow Groups of varieties over number fields
ag.algebraic-geometry
nt.number-theory
reference-request
motives
algebraic-cycles
A question on Voevodsky´s categories
ag.algebraic-geometry
reference-request
motives
triangulated-categories
motivic-cohomology
Resolution of Gorenstein rational singularities on a surface
ag.algebraic-geometry
birational-geometry
algebraic-surfaces
resolution-of-singularities
Irreducibility of fixed point scheme
ag.algebraic-geometry
group-actions
Is the Hodge class defined on stack or coarse moduli?
ag.algebraic-geometry
algebraic-curves
moduli-spaces
Smooth complex projective manifolds with a $\mathbb C^*$-action with isolated fixed points
ag.algebraic-geometry
complex-geometry
Pulling Back Cohen-Macaulay Sheaves
ag.algebraic-geometry
ac.commutative-algebra
Unirationality of Fermat varieties in characteristic $p$
ag.algebraic-geometry
arithmetic-geometry
Can "ampleness" be detected inside the derived category?
ag.algebraic-geometry
derived-categories
derived-algebraic-geometry
Construction of small resolution of a double point
ag.algebraic-geometry
Why are coherent sheaves on $\Bbb P^1$ derived equivalent to representations of the Kronecker quiver?
ag.algebraic-geometry
rt.representation-theory
quivers
Is $x \in A_1$ left algebraic over the subalgebra generated by $p$ and $q$, $[q,p]=1$?
ag.algebraic-geometry
noncommutative-algebra
division-algebras
weyl-algebra
jacobian-conjecture
Is the quotient of resolution the same as resolution of the quotient?
ag.algebraic-geometry
Aysmptotic comparison of $L^2$ sections versus generating sections
ag.algebraic-geometry
dg.differential-geometry
Formalism behind local characterizations of formal smoothness/unramifiedness/étaleness over algebraically closed fields
ag.algebraic-geometry
dg.differential-geometry
ct.category-theory
ac.commutative-algebra
fields
Galois invariant Picard group elements
ag.algebraic-geometry
picard-group
p-adic Poincaré Lemma
ag.algebraic-geometry
complex-geometry
p-adic-analysis
rigid-analytic-geometry
p-adic-hodge-theory
Intersection number of divisors on abelian surfaces and its invariance under translation by 2-Torsion points
ag.algebraic-geometry
abelian-varieties
intersection-theory
jacobians
hyperelliptic-curves
Gauss map of general K3 surface
ag.algebraic-geometry
Mirror symmetry for blowups of the projective plane
ag.algebraic-geometry
sg.symplectic-geometry
mirror-symmetry
fano-varieties
Picard group under base change for algebraically closed fields
ag.algebraic-geometry
Relation between Igusa tower and $p$-adic modular forms
ag.algebraic-geometry
arithmetic-geometry
modular-forms
Finite generation of canonical ring in Geometric PDE
ag.algebraic-geometry
dg.differential-geometry
ap.analysis-of-pdes
kahler-manifolds
General existence theorem for cup products
ag.algebraic-geometry
ct.category-theory
homological-algebra
derived-categories
Moduli in semialgebraic geometry
ag.algebraic-geometry
real-algebraic-geometry
semirings
semialgebraic-geometry
Is there a scheme parametrizing the closed subgroups of an algebraic group?
ag.algebraic-geometry
algebraic-groups
hilbert-schemes
reductive-groups
Square lying on moving chord of a simple closed curve
ag.algebraic-geometry
gn.general-topology
gt.geometric-topology
mg.metric-geometry
Topological criterion for GIT semistability
ag.algebraic-geometry
algebraic-groups
invariant-theory
geometric-invariant-theory
The lisse-etale site and derived algebraic geometry
ag.algebraic-geometry
higher-category-theory
stacks
derived-algebraic-geometry
Monsky's proof of the finiteness of de Rham cohomology
ag.algebraic-geometry
derham-cohomology
homological-algebra
(geometric/intuitive) interpretation of ext
homological-algebra
ag.algebraic-geometry
ac.commutative-algebra
Relations for the algebra of differential operators on a smooth affine variety
ag.algebraic-geometry
reference-request
differential-operators
Are irreducible subgroups Zariski-dense?
ag.algebraic-geometry
rt.representation-theory
gt.geometric-topology
algebraic-groups
A question about flag variety of $SL(n,\mathbb{C})$
ag.algebraic-geometry
gr.group-theory
lie-groups
mp.mathematical-physics
lie-algebras
A Grothendieck style reference for probability theory
ag.algebraic-geometry
reference-request
pr.probability
If $\Omega_{X/Y}$ is locally free of rank $\mathrm{dim}\left(X\right)-\mathrm{dim}\left(Y\right)$, is $X\rightarrow Y$ smooth?
ag.algebraic-geometry
smoothness
differentials
examples
Formal multidimensional Taylor series expansion over commutative rings
ag.algebraic-geometry
reference-request
power-series
multilinear-algebra
Simplicial complex construction from given Betti numbers?
ag.algebraic-geometry
at.algebraic-topology
gn.general-topology
Some calculations on cones
ag.algebraic-geometry
birational-geometry