MathOverflow

21

votes

21

answers

3k

views

Taking lecture notes in lectures

soft-question

2m ago Benoît Kloeckner 2,272●4●15

3

votes

2

answers

51

views

Other norms for Lattice reduction techniques (LLL, PSLQ)?

5m ago felix 71●2

1

vote

0

answers

58

views

A quasi-coherent module concentrated at $x$

ag.algebraic-geometry

10m ago Martin Brandenburg 5,496●3●26

3

votes

1

answer

50

views

Generalising the Sphere-Projective Relationship to the Flag Manifold Setting

ag.algebraic-geometry principal-bundles dg.differential-geometry

29m ago Sheikraisinrollbank 71●1

10

votes

1

answer

253

views

Integral positive definite quadratic forms and graphs

quadratic-forms graph-theory matrix

32m ago Gjergji Zaimi 9,870●1●11●41

-1

votes

0

answers

42

views

Can be patch up line bundles?

complex-geometry dg.differential-geometry

1h ago Colin Tan 1,587●15

6

votes

2

answers

351

views

Deformation quantization and quantum cohomology (or Fukaya category) — are they related?

sg.symplectic-geometry ag.algebraic-geometry qa.quantum-algebra fukaya-category gromov-witten-theory

1h ago Kevin Lin 8,151●1●9●57

6

votes

3

answers

113

views

What are natural examples of “bimorphism” classes?

ct.category-theory

1h ago Mike Shulman 5,466●3●22

7

votes

1

answer

102

views

convex hull of k random points

pr.probability convexity

2h ago Gil Kalai 3,526●3●24●52

0

votes

1

answer

36

views

reference for weak*-semigroup

books reference-request semigroups fa.functional-analysis

2h ago BigBill 174●6

4

votes

0

answers

40

views

How big is the sum of smallest multinomial coefficients?

co.combinatorics pr.probability

2h ago Yaroslav Bulatov 331●7

0

votes

0

answers

33

views

Question about “wide” random matrices

random-matrices

3h ago umar 1

5

votes

0

answers

50

views

Representability of polymatroids over $GF(2)$

matroid-theory co.combinatorics reference-request rt.representation-theory

3h ago Andreas Thom 1,676●2●17

2

votes

1

answer

87

views

Relation between l-adic and l'-adic geometric monodromy

ag.algebraic-geometry nt.number-theory

4h ago Torsten Ekedahl 7,200●1●5●28

7

votes

2

answers

189

views

Getting a differential equation for a function from a functional equation of its Mellin transform

cv.complex-variables differential-equations laplace-transform functional-equations

4h ago Armin Straub 545●4●15

4

votes

3

answers

114

views

Sequences of evenly-distributed points in a product of intervals

mg.metric-geometry nt.number-theory oc.optimization-control

4h ago Gerry 3,888●6●23

1

vote

0

answers

41

views

nth-order generalizations of the arithmetic-geometric mean

reference-request special-functions

4h ago J. M. 344●7

-3

votes

0

answers

228

views

Is this set countable? [closed]

set-theory

5h ago Chris Ormerod 56●3

0

votes

0

answers

54

views

Relation between the maximal torus of a connected reductive algebraic group and its reductive subgroup

rt.representation-theory algebraic-groups

5h ago Victor Protsak 4,603●1●14●28

3

votes

17

answers

812

views

What is your favorite isomorphism? [closed]

big-list examples mathematics-education

5h ago JBL 811●1●10

8

votes

1

answer

387

views

What is a path in K-theory space?

nt.number-theory l-functions knot-theory algebraic-k-theory

6h ago Mahesh Kakde 49●3

16

votes

3

answers

309

views

Why do statistical randomness tests seem so ad hoc?

st.statistics cs.cc.complexity-theory

6h ago Peter Shor 1,567●4●19

0

votes

0

answers

34

views

Technique to prove basepoint-freeness

ag.algebraic-geometry line-bundles birational-geometry

6h ago Moon 194●1●6

18

votes

5

answers

677

views

Best tablet computer for mathematics

computer soft-question

6h ago Peter Krautzberger 31●1●3

24

votes

1

answer

409

views

Kirby calculus and local moves

gt.geometric-topology 3-manifolds surgery-theory knot-theory

6h ago Daniel Moskovich 2,685●4●27

12

votes

2

answers

514

views

On linear independence of exponentials

ca.classical-analysis cv.complex-variables classical-mechanics

7h ago MathOverflow♦ 1●1●3

3

votes

0

answers

80

views

Cohomology of Zariski neighborhoods

ag.algebraic-geometry hodge-theory weights gt.geometric-topology

7h ago algori 7,892●1●8●41

1

vote

0

answers

137

views

A nonnegative definite matrix?

matrix

8h ago miwalin 899●1●14

3

votes

2

answers

158

views

A counter example to Hahn-Banach separation theorem of convex sets.

fa.functional-analysis

8h ago fedja 6,725●9●29

8

votes

2

answers

195

views

Random noncrossing chords of a circle

reference-request geometry pr.probability graph-theory

9h ago Joseph O'Rourke 3,869●3●17

16

votes

18

answers

3k

views

Math paper authors' order

soft-question writing convention

9h ago Apurva 76●3

5

votes

1

answer

64

views

Hausdorff dimension of products of normal subgroups

gr.group-theory

9h ago Yiftach Barnea 731●1●2●8

8

votes

1

answer

547

views

Understand Cech Cohomology

at.algebraic-topology simplicial-stuff cohomology

9h ago MathOverflow♦ 1●1●3

2

votes

0

answers

190

views

When is the base change morphism an isomorphism?

ag.algebraic-geometry etale-cohomology

9h ago algori 7,892●1●8●41

1

vote

2

answers

149

views

Manifolds of continuous mappings.

reference-request dg.differential-geometry

10h ago Dick Palais 1,503●4●13

5

votes

1

answer

135

views

Quotient of abelian variety by an abelian subvariety

abelian-varieties ag.algebraic-geometry

10h ago Francesco Polizzi 1,043●10

30

votes

31

answers

3k

views

What are your favorite instructional counterexamples?

examples mathematics-education big-list

11h ago Andrew K. 51●4

13

votes

6

answers

466

views

Three questions on large simple groups and model theory

gr.group-theory model-theory

12h ago Julien Melleray 31●2

1

vote

1

answer

131

views

Books about the spectra of non-compact Riemann surfaces

reference-request riemann-surfaces

12h ago Kimball 21●1

3

votes

3

answers

219

views

Why are multinomial coefficients with same entropy equal? (usually)

co.combinatorics

12h ago Aaron Meyerowitz 557●1●7

3

votes

2

answers

207

views

Zariski-style valuation theory

ag.algebraic-geometry valuation-theory

12h ago Francesco Polizzi 1,043●10

0

votes

1

answer

324

views

Trawler Problem

oc.optimization-control

12h ago MathOverflow♦ 1●1●3

1

vote

1

answer

115

views

comparing multiple contingency tables, independent data

st.statistics

12h ago MathOverflow♦ 1●1●3

28

votes

2

answers

3k

views

Please check my 6-line proof of Fermat’s Last Theorem.

nt.number-theory class-field-theory

12h ago Cam McLeman 2,443●1●9●23

1

vote

1

answer

61

views

description of functions of conditionally negative type on a group

examples reference-request fa.functional-analysis gr.group-theory

12h ago BigBill 174●6

3

votes

0

answers

89

views

Covers of $Z^k$

at.algebraic-topology co.combinatorics discrete-geometry point-set-topology

13h ago Mark Sapir 599●10

21

votes

1

answer

1k

views

Counting subgraphs of bipartite graphs

computer-science cs.cc.complexity-theory graph-theory

13h ago MathOverflow♦ 1●1●3

1

vote

2

answers

167

views

Resultant probability distribution when taking the cosine of gaussian distributed variable

probability-distributions mathematical-modeling pr.probability

13h ago Cody Martin 11●2

Recent Questions

Looking for more? Browse the complete list of questions, or popular tags. Help us answer unanswered questions.

Welcome to Math Overflow

Recent Tags

Recent Badges

How to write math