Michael Renardy's user avatar
Michael Renardy's user avatar
Michael Renardy's user avatar
Michael Renardy
  • Member for 13 years, 4 months
  • Last seen this week
51 votes

Determinant of sum of positive definite matrices

44 votes

Small ideas that became big

39 votes

Source and context of $\frac{22}{7} - \pi = \int_0^1 (x-x^2)^4 dx/(1+x^2)$?

36 votes

The half-life of a theorem, or Arnold's principle at work

31 votes

Colloquial catchy statements encoding serious mathematics

30 votes

Which mathematical ideas have done most to change history?

30 votes

Mathematical "urban legends"

25 votes

Prominent non-mathematical work of mathematicians

18 votes

Which great mathematicians had great political commitments?

18 votes
Accepted

Intersection of compact sets in the unit interval

17 votes
Accepted

Are there soliton solutions for Euler and Navier–Stokes equation?

16 votes

Dimension leaps

14 votes

is every element in a C* algebra a product of normal elements?

13 votes
Accepted

A question about matrices with more details

12 votes

Convergence of solutions to Navier-Stokes to Euler's equation for viscosity $\to$ zero

12 votes
Accepted

What is the name of $\frac{e^z-1}{z}$ and how to invert it?

12 votes

Early two-author math papers

12 votes
Accepted

Does $\pm A \leq B$ imply that $B^{-1} A$ is bounded?

11 votes

Square roots of the Laplace operator

11 votes
Accepted

Conservative differential equations "in the wild"

11 votes
Accepted

Conjectured closed form for definite integral

11 votes

How much can one say about this differential equation?

10 votes

Inverse gamma function?

10 votes
Accepted

nonnegative Fourier Transform

10 votes

weak*-compactness of unit ball in equivalent norm

10 votes

"You can't push a rope"

10 votes

Sobolev Embedding Theorems

9 votes

Mathematical ideas named after places

9 votes

Find the sum of a series.

9 votes

History of Gauss' Law

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