User abx

48 votes

Mathematical research published in the form of poems

answered Dec 29, 2013 at 16:19

40 votes

Has philosophy ever clarified mathematics?

ho.history-overview big-list mathematical-philosophy

answered Oct 1, 2014 at 6:25

37 votes

Accepted

Rachinsky quintets

nt.number-theory

answered Jan 4, 2014 at 17:49

35 votes

is the Hodge conjecture birationally invariant?

ag.algebraic-geometry hodge-theory birational-geometry

answered Jan 26, 2014 at 21:04

34 votes

Is there a differentiable map surjective from low to high dimension？

gn.general-topology ca.classical-analysis-and-odes

answered Oct 2, 2021 at 8:13

32 votes

Various authors of the Bourbaki's books

ho.history-overview machine-learning bourbaki

answered Mar 24, 2021 at 5:49

31 votes

Research-only permanent positions worldwide

soft-question career advice

answered Jun 24, 2017 at 18:38

29 votes

Manifolds admitting flat connections

dg.differential-geometry riemannian-geometry connections

answered Oct 11, 2014 at 14:23

25 votes

Accepted

Can any curve be embedded into $\mathbb{P}^3$?

ag.algebraic-geometry algebraic-curves

answered Jan 21, 2014 at 10:29

24 votes

Fibrations with isomorphic fibers, but not Zariski locally trivial

ag.algebraic-geometry examples

answered Feb 23, 2014 at 16:56

24 votes

Most intriguing mathematical epigraphs

soft-question big-list mathematical-writing math-communication

answered Sep 29, 2015 at 12:25

23 votes

Accepted

Realizing algebraic curves as complete intersections

ag.algebraic-geometry algebraic-curves complete-intersection

answered Aug 29, 2014 at 20:14

21 votes

Accepted

GAGA for stacks

ag.algebraic-geometry complex-geometry stacks gaga

answered Dec 17, 2018 at 21:09

19 votes

Rational curves on varieties of general type

ag.algebraic-geometry algebraic-surfaces

answered May 17, 2016 at 15:40

17 votes

Accepted

Differentiability of eigenvalues of positive-definite symmetric matrices

linear-algebra ca.classical-analysis-and-odes sp.spectral-theory eigenvalues real-algebraic-geometry

answered Apr 27, 2020 at 5:34

17 votes

Accepted

Why is Klein's representation of $PSL_2(\mathbb{F}_7)$ hard to obtain?

ag.algebraic-geometry gr.group-theory rt.representation-theory finite-groups

answered Nov 5, 2014 at 16:15

17 votes

Accepted

Vector bundles on vector bundles

ag.algebraic-geometry complex-geometry homotopy-theory vector-bundles

answered Mar 4, 2014 at 11:45

16 votes

Accepted

Minimal number of intersection of curves in $\mathbb P^2$

ag.algebraic-geometry algebraic-curves

answered Feb 10, 2014 at 11:10

16 votes

Accepted

What is the role of projective spaces in GAGA?

ag.algebraic-geometry complex-geometry

answered Oct 1, 2015 at 6:23

15 votes

Accepted

Line bundles and modular forms

nt.number-theory modular-forms

answered Aug 15, 2017 at 14:42

15 votes

What is the point of reading classics over modern treatments?

soft-question books

answered Jan 7, 2021 at 15:57

15 votes

Accepted

Is the higher direct image sheaf of a locally free sheaf over $\mathbb{P}^1$ locally free?

ag.algebraic-geometry cohomology sheaf-cohomology

answered Nov 17, 2013 at 20:51

15 votes

Accepted

Is the big cell a principal open set?

ag.algebraic-geometry algebraic-groups

answered Apr 12, 2014 at 9:10

14 votes

Accepted

Flatness from constancy of dimension of fibers

ag.algebraic-geometry flatness

answered Jan 14, 2017 at 10:08

14 votes

Accepted

Quotients of curves of genus $4$ by a free $\mathbb{Z}/ 3 \mathbb{Z}$-action

ag.algebraic-geometry algebraic-curves riemann-surfaces

answered Jan 29, 2016 at 11:46

13 votes

Accepted

Must a canonical line bundle be associated to a cartier divisor?

ag.algebraic-geometry complex-geometry

answered May 12, 2014 at 16:34

13 votes

Accepted

Pseudo-automorphisms on Fano varieties

ag.algebraic-geometry birational-geometry fano-varieties

answered Aug 22, 2014 at 7:56

12 votes

Accepted

Singularities of the moduli stack of Calabi-Yau threefolds

ag.algebraic-geometry complex-geometry moduli-spaces stacks calabi-yau

answered Apr 23, 2015 at 13:13

12 votes

Accepted

A lagrangian version of the Withney theorem

sg.symplectic-geometry smooth-manifolds

answered Jan 11, 2014 at 11:32

12 votes

Accepted

diagonal cubic hypersurfaces

ag.algebraic-geometry arithmetic-geometry birational-geometry

answered Oct 6, 2021 at 9:57

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507 Answers

Mathematical research published in the form of poems

Has philosophy ever clarified mathematics?

Rachinsky quintets

is the Hodge conjecture birationally invariant?

Is there a differentiable map surjective from low to high dimension？

Various authors of the Bourbaki's books

Research-only permanent positions worldwide

Manifolds admitting flat connections

Can any curve be embedded into $\mathbb{P}^3$?

Fibrations with isomorphic fibers, but not Zariski locally trivial

Most intriguing mathematical epigraphs

Realizing algebraic curves as complete intersections

GAGA for stacks

Rational curves on varieties of general type

Differentiability of eigenvalues of positive-definite symmetric matrices

Why is Klein's representation of $PSL_2(\mathbb{F}_7)$ hard to obtain?

Vector bundles on vector bundles

Minimal number of intersection of curves in $\mathbb P^2$

What is the role of projective spaces in GAGA?

Line bundles and modular forms

What is the point of reading classics over modern treatments?

Is the higher direct image sheaf of a locally free sheaf over $\mathbb{P}^1$ locally free?

Is the big cell a principal open set?

Flatness from constancy of dimension of fibers

Quotients of curves of genus $4$ by a free $\mathbb{Z}/ 3 \mathbb{Z}$-action

Must a canonical line bundle be associated to a cartier divisor?

Pseudo-automorphisms on Fano varieties

Singularities of the moduli stack of Calabi-Yau threefolds

A lagrangian version of the Withney theorem

diagonal cubic hypersurfaces