User Jonas Meyer

31 votes

Accepted

"Pick up a homological algebra book and prove all of the theorems yourself" (exercise from Lang's Algebra)

answered Jan 6, 2010 at 8:01

22 votes

Accepted

Is there an index for solutions to American Mathematical Monthly problems?

answered Jun 6, 2010 at 21:46

5 votes

Dimension leaps

answered Dec 31, 2009 at 12:00

38 votes

Accepted

Are the norms of graphs dense in any interval?

answered May 9, 2010 at 6:06

6 votes

Does 2^m = 3^n + r have finitely many solutions for every r?

answered Mar 20, 2010 at 2:41

9 votes

Permutation representation inner product

answered Mar 5, 2010 at 22:30

13 votes

Accepted

Who invented the gamma function?

answered Dec 26, 2009 at 10:36

21 votes

Accepted

Does pointwise convergence imply uniform convergence on a large subset?

answered Nov 12, 2010 at 4:27

70 votes

Most memorable titles

answered Oct 31, 2010 at 20:44

37 votes

Most memorable titles

answered Oct 31, 2010 at 20:56

6 votes

Accepted

Surjective *-homs between multiplier algebras

answered Jul 8, 2010 at 20:53

10 votes

When is a Banach space a Hilbert space?

answered Jan 8, 2010 at 22:16

5 votes

Does the space of $n \times n$, positive-definite, self-adjoint, real matrices have a better name?

answered Nov 5, 2009 at 9:10

2 votes

The reals as continuous image of the irrationals

answered Nov 12, 2012 at 16:46

4 votes

Accepted

Unbounded representations of Banach algebras

answered Aug 13, 2011 at 8:45

6 votes

Accepted

Must a surjective isometry on a dual space have a pre-adjoint?

answered Mar 3, 2011 at 20:54

15 votes

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Topological spaces whose continuous image is always closed

answered Oct 21, 2010 at 0:14

8 votes

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Converse of Picard's Big Theorem?

answered Sep 2, 2010 at 5:16

4 votes

totally disconnected and zero-dimensional spaces

answered Sep 1, 2010 at 16:13

6 votes

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Representation of $*$-automorphism on finite dimensional matrix algebras

answered Aug 30, 2010 at 19:23

5 votes

infinitely many linear equations in infinitely many variables

answered Aug 25, 2010 at 6:41

4 votes

range projection of an unbounded idempotent affiliated to a finite von Neumann algebra

answered Aug 25, 2010 at 5:58

5 votes

How come nowhere dense subsets implies discrete?

answered Aug 22, 2010 at 17:04

10 votes

Hausdorff dimension: subset of $\mathbb{R}^n$ vs. boundary of this subset

answered Aug 9, 2010 at 19:20

5 votes

Accepted

Is the set of exponentials open?

answered Aug 5, 2010 at 18:40

6 votes

Accepted

Question about von Neumann algebra generated by a complete algebra of projections

answered Jul 23, 2010 at 22:21

24 votes

Examples of common false beliefs in mathematics

answered Jul 23, 2010 at 18:39

12 votes

Accepted

'Eigenvectors' of evolute operation

answered Jul 18, 2010 at 22:13

16 votes

Do names given to math concepts have a role in common mistakes by students?

answered Jul 18, 2010 at 20:18

6 votes

Accepted

Standard name for basis-independent submatrices?

answered Jan 5, 2010 at 22:10

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76 Answers

"Pick up a homological algebra book and prove all of the theorems yourself" (exercise from Lang's Algebra)

Is there an index for solutions to American Mathematical Monthly problems?

Dimension leaps

Are the norms of graphs dense in any interval?

Does 2^m = 3^n + r have finitely many solutions for every r?

Permutation representation inner product

Who invented the gamma function?

Does pointwise convergence imply uniform convergence on a large subset?

Most memorable titles

Most memorable titles

Surjective *-homs between multiplier algebras

When is a Banach space a Hilbert space?

Does the space of $n \times n$, positive-definite, self-adjoint, real matrices have a better name?

The reals as continuous image of the irrationals

Unbounded representations of Banach algebras

Must a surjective isometry on a dual space have a pre-adjoint?

Topological spaces whose continuous image is always closed

Converse of Picard's Big Theorem?

totally disconnected and zero-dimensional spaces

Representation of $*$-automorphism on finite dimensional matrix algebras

infinitely many linear equations in infinitely many variables

range projection of an unbounded idempotent affiliated to a finite von Neumann algebra

How come nowhere dense subsets implies discrete?

Hausdorff dimension: subset of $\mathbb{R}^n$ vs. boundary of this subset

Is the set of exponentials open?

Question about von Neumann algebra generated by a complete algebra of projections

Examples of common false beliefs in mathematics

'Eigenvectors' of evolute operation

Do names given to math concepts have a role in common mistakes by students?

Standard name for basis-independent submatrices?