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2

votes

1

answer

26

views

What are surprising examples of Model Categories?

21m ago Dmitri Pavlov 860●2●11

6

votes

1

answer

173

views

Space whose product with paracompact space is paracompact

gn.general-topology

53m ago François G. Dorais 3,380●7●22

3

votes

2

answers

93

views

Positivity in stack geometry

ag.algebraic-geometry

1h ago Tony Pantev 1,835●1●4●10

2

votes

1

answer

259

views

Prime numbers with given difference

prime-numbers nt.number-theory

1h ago François G. Dorais 3,380●7●22

4

votes

1

answer

118

views

Seiberg-Witten theory on 4-manifolds with boundary

gauge-theory gt.geometric-topology moduli-spaces dg.differential-geometry tqft

2h ago Chris Schommer-Pries 3,764●3●20

1

vote

1

answer

106

views

Statistical test comparing two relative frequencies

st.statistics pr.probability

2h ago François G. Dorais 3,380●7●22

50

votes

17

answers

2k

views

Which journals publish expository work?

journals exposition

3h ago mathphysicist 735●2●7

8

votes

9

answers

429

views

What out-of-print books would you like to see re-printed?

soft-question books big-list

3h ago Jonas Meyer 1,694●1●6●14

12

votes

1

answer

263

views

Category Theoretic Interpretation of Matroids?

ct.category-theory matroid-theory definitions

3h ago Tony Huynh 436●8

2

votes

1

answer

184

views

Deriving symmetries of a Gauge theory

gauge-theory dg.differential-geometry mp.mathematical-physics

4h ago mathphysicist 735●2●7

2

votes

0

answers

35

views

Flatness of relative canonical bundle

ag.algebraic-geometry

4h ago Zsolt Patakfalvi 81●3

1

vote

2

answers

85

views

Motivation for the covariant model structure on SSet/S

motivation simplicial-stuff model-category higher-category-theory ct.category-theory

4h ago David Carchedi 51●3

3

votes

0

answers

122

views

Can a continuous, nowhere differentiable function have specified “shape” at every point?

real-analysis

4h ago Mike Hall 31●2

3

votes

2

answers

259

views

Which journals publish PhD abstracts?

big-list journals thesis publishing soft-question

5h ago mathphysicist 735●2●7

4

votes

4

answers

642

views

Is there a neat proof for a simple looking inequality.

inequalities

5h ago Yaakov Baruch 479●4●9

3

votes

5

answers

158

views

Strings and “co-subsequences”

terminology definitions co.combinatorics

6h ago mathy 1

18

votes

2

answers

353

views

Groebner basis with group action

ag.algebraic-geometry algorithms rt.representation-theory

6h ago Douglas Zare 2,777●5●17

5

votes

2

answers

311

views

Question about Ext

homological-algebra rt.representation-theory

6h ago George 11●1

5

votes

2

answers

369

views

When is the Galois representation on the étale cohomology unramified/Hodge-Tate/de Rham/crystalline/semistable?

arithmetic-geometry nt.number-theory ag.algebraic-geometry galois-representations

6h ago Emerton 8,423●20●35

2

votes

3

answers

123

views

Are low dimensional modular representations of SL2(Fp) completely reducible?

rt.representation-theory

6h ago George 11●1

2

votes

2

answers

135

views

Decomposition theorem and blow-ups

ag.algebraic-geometry

6h ago Geordie Williamson 294●4

-3

votes

0

answers

90

views

What is the meaning of canonical subset? [closed]

canonical-bases

6h ago Pouya 1

1

vote

1

answer

141

views

which are the recomemnded books for an introductory study of elliptic curves?

elliptic-curves ag.algebraic-geometry

7h ago Steve Huntsman 3,117●3●21

8

votes

3

answers

253

views

How do you relate the number of independent vector fields on spheres and Bott Periodicity for real K-Theory?

kt.k-theory-homology homotopy-theory vector-bundles clifford-algebras

7h ago Dan Ramras 246●7

3

votes

2

answers

91

views

Generalization of permanent definition based on number of permutation cycles

co.combinatorics

8h ago Igor Pak 1,494●4●14

2

votes

2

answers

74

views

discrete stochastic process: exponentially correlated Bernoulli?

st.statistics

8h ago Didier Piau 1●1

3

votes

3

answers

131

views

Induction of tensor product vs. tensor product of inductions

rt.representation-theory tensor-product

8h ago Robin Chapman 480●5

0

votes

0

answers

45

views

Likelihood function for sequential random variables

pr.probability

9h ago Anon 1●1

3

votes

1

answer

97

views

Lower bounds on (truncated) Fourier transform of functions of constant modulus and bounded derivative

fourier-analysis ca.classical-analysis

9h ago Math Overflow♦ 1●1●3

0

votes

0

answers

170

views

Diophantine: Ax+B=Cy [closed]

nt.number-theory

9h ago Dan 11●2

1

vote

5

answers

184

views

Probabilities and rolling 2 dice

pr.probability

9h ago Mikola 143●7

2

votes

1

answer

249

views

Ants on a rod puzzle [closed]

puzzle

11h ago Sergei Ivanov 1,017●2●13

3

votes

5

answers

358

views

Category of graphs.

ct.category-theory

12h ago unknown (google) 544●1●8

12

votes

4

answers

503

views

+100

The middle eigenvalues of an undirected graph

graph-theory linear-algebra

12h ago Kevin Costello 843●1●11

12

votes

2

answers

437

views

Lifting matrices mod 2 to integers.

matrix co.combinatorics determinants nt.number-theory

13h ago HenrikRüping 620●1●10

1

vote

1

answer

79

views

Existence of convergent subsequences for all values in range?

sequences soft-question gn.general-topology

13h ago Gerald Edgar 2,273●2●18

12

votes

2

answers

268

views

Is there a “categorical” description of Grothendieck’s algebra of differential operators?

ra.rings-and-algebras rt.representation-theory universal-property sheaf-theory

13h ago Theo Johnson-Freyd 5,990●4●32

13

votes

10

answers

800

views

Can you prove equivalence without being able to calculate it?

soft-question big-list math-philosophy

14h ago Seamus 73●4

0

votes

1

answer

255

views

Can every finite graph be represented by one prescribed sequence of natural numbers?

graph-theory nt.number-theory soft-question

14h ago Niel 81●6

2

votes

0

answers

43

views

Restricting Differential Calculi to Quotients

noncommutative-geometry qa.quantum-algebra quantum-group

15h ago Abtan Massini 175●7

2

votes

4

answers

257

views

Axiom of Infinity needed in Cantor-Bernstein?

set-theory

15h ago François G. Dorais 3,380●7●22

18

votes

4

answers

499

views

Is the universal covering of an open subset of $\mathbb{R}^n$ diffeomorphic to an open subset of $\mathbb{R}^n$ ?

at.algebraic-topology gt.geometric-topology gn.general-topology

15h ago Marius Overholt 1●1

1

vote

0

answers

66

views

+100

Bicovariant Calculi on the Quantum Unitary Groups

qa.quantum-algebra quantum-group noncommutative-geometry

15h ago Abtan Massini 175●7

10

votes

3

answers

384

views

Inverse limit in metric geometry

mg.metric-geometry reference-request

16h ago Jean Lecureux 145●1●4

7

votes

0

answers

164

views

2, 3, and 4 (a possible fixed point result ?)

fa.functional-analysis open-problem

16h ago Ady 718●1●8

1

vote

0

answers

144

views

Name for number of elements of order (1 or) 2 in an abelian group

terminology gr.group-theory

16h ago Mark Meckes 1,530●3●14

6

votes

2

answers

299

views

Growth of the “cube of square root” function

analysis nt.number-theory polynomials

16h ago Sergei Ivanov 1,017●2●13

1

vote

4

answers

303

views

Calculating fourier transform at any frequency

fourier-analysis

19h ago unknown (google) 544●1●8

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