User Andrey Rekalo

5 votes

Accepted

Linear transformation takes a polygon to another one.

answered Jul 25, 2010 at 18:31

5 votes

Composite pairs of the form n!-1 and n!+1

answered Jul 1, 2010 at 12:50

5 votes

Accepted

Birkhoff conjecture about integrable billiards

answered Jul 5, 2010 at 20:21

5 votes

Is there an intuitive explanation for an extremal property of Chebyshev polynomials?

answered May 22, 2010 at 6:34

5 votes

Quantitative questions about the size of a finite epsilon net

answered May 12, 2010 at 17:09

5 votes

Positive Derivative

answered May 19, 2010 at 15:15

5 votes

Accepted

Equivalent definitions of Gaussian curvature

answered Apr 24, 2010 at 6:11

5 votes

Does the norm of a normed linear space determine the form of its dual spaces elements?

answered Jun 14, 2010 at 22:30

5 votes

Accepted

Sets of divergence of Fourier series

answered Jun 7, 2011 at 10:27

4 votes

Accepted

Example of noncomplete quotient of complete lcs mod closed subspace

answered Mar 7, 2011 at 13:15

4 votes

Can the "physical argument" for the existence of a solution to Dirichlet's problem be made into an actual proof?

answered Jun 12, 2010 at 16:24

4 votes

Introducing Cryptology to Undergraduates

answered May 25, 2010 at 21:19

4 votes

Accepted

A formula for the Jacobian of a flow

answered Jun 8, 2010 at 4:12

4 votes

Regular borel measures on metric spaces

answered Apr 22, 2010 at 11:18

4 votes

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A variation on "Hearing the shape of a drum" for polytopes.

answered May 15, 2010 at 17:48

4 votes

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Intuitive "proof" or explanation of a result in Friedman's urn

answered Jul 9, 2010 at 17:27

4 votes

Ways to prove an inequality

answered Jul 7, 2010 at 15:42

4 votes

Trace space and Neumann boundary condition

answered Oct 7, 2010 at 17:05

4 votes

Optimal packing of spheres tangent to a central sphere

answered Oct 12, 2010 at 1:18

3 votes

Accepted

Cartesian product of test function spaces

answered Aug 10, 2010 at 14:59

3 votes

Accepted

Invertibility of the Laplacian

answered Dec 3, 2010 at 17:03

3 votes

Distributional derivative of non continuously differentiable functions

answered Jul 5, 2010 at 13:40

3 votes

Accepted

Knaster-Kuratowski-Mazurkiewicz (KKM ) Thoerem

answered Jul 22, 2010 at 16:23

3 votes

Examples of inequality implied by equality.

answered Apr 27, 2010 at 3:31

3 votes

Why do Littlewood-Paley projections behave like iid random variables

answered Jun 19, 2010 at 21:24

2 votes

Accepted

Approximation by analytic functions

answered Jun 21, 2010 at 18:39

2 votes

Determining a lower bound on the Hausdorff dimension of a set

answered Jun 22, 2010 at 21:41

2 votes

expected values over binomial distributions

answered Apr 22, 2010 at 3:08

2 votes

Accepted

helmholtz zero in R^3

answered May 10, 2010 at 2:19

2 votes

Representing repeated structure in graphs

answered May 25, 2010 at 17:04

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157 Answers

Linear transformation takes a polygon to another one.

Composite pairs of the form n!-1 and n!+1

Birkhoff conjecture about integrable billiards

Is there an intuitive explanation for an extremal property of Chebyshev polynomials?

Quantitative questions about the size of a finite epsilon net

Positive Derivative

Equivalent definitions of Gaussian curvature

Does the norm of a normed linear space determine the form of its dual spaces elements?

Sets of divergence of Fourier series

Example of noncomplete quotient of complete lcs mod closed subspace

Can the "physical argument" for the existence of a solution to Dirichlet's problem be made into an actual proof?

Introducing Cryptology to Undergraduates

A formula for the Jacobian of a flow

Regular borel measures on metric spaces

A variation on "Hearing the shape of a drum" for polytopes.

Intuitive "proof" or explanation of a result in Friedman's urn

Ways to prove an inequality

Trace space and Neumann boundary condition

Optimal packing of spheres tangent to a central sphere

Cartesian product of test function spaces

Invertibility of the Laplacian

Distributional derivative of non continuously differentiable functions

Knaster-Kuratowski-Mazurkiewicz (KKM ) Thoerem

Examples of inequality implied by equality.

Why do Littlewood-Paley projections behave like iid random variables

Approximation by analytic functions

Determining a lower bound on the Hausdorff dimension of a set

expected values over binomial distributions

helmholtz zero in R^3

Representing repeated structure in graphs