34

Answers

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8

Video lectures of mathematics courses available online for free

6

A single paper everyone should read?

27

Suggestions for good notation (2)

3

Pseudonyms of famous mathematicians

8

A Book You Would Like to Write

14

A soft introduction to physics for mathematicians who don’t know the first thing about physics (3)

1

More open problems

1

Is rigour just a ritual that most mathematicians wish to get rid of if they could?

6

Occurrences of (co)homology in other disciplines and/or nature (2)

3

Modern Mathematical Achievements Accessible to Undergraduates

1

Get a point inside a polygon

9

A sudden smiley? :-)

2

Representations of Lorentz group

3

What is the dual concept to “annihilator” called, and do any linear algebra textbooks discuss this concept first?

4

Interesting conjectures “discovered” by computers and proved by humans?

5

Maxwells equations and differential forms

7

Mathematics TV clips (2)

1

Generalized notions of solutions in various areas of mathematics (2)

2

Singular semi-Riemannian Geometry: usefulness and state of the art

6

Classification of surfaces composed of circles

2

Can the adjoint of the exterior derivative in semi-Riemannian geometry be defined without the Hodge * operator?

13

Can every $\mathbb{Z}^2$ disk be pinball-reached?

12

Hexagonal rooks

0

Which Bianchi identity is due to Bianchi (or not, since it might be due to Ricci (according to Levi-Civita (according to MO))) or vice versa?

4

Surfaces that can be rolled by a ball

1

isometric embedding of a sphere

3

Riemannian metrics as sections of a vector bundle

2

Detect if directed cycle is clockwise or counterclockwise in 3D

1

Herringbone partitions of regions and surfaces

1

Generalization of the Polarisation Formula for Symmetric Bilinear Forms to Symmetric multilinear Forms