User Mike Spivey

35 votes

What recent discoveries have amateur mathematicians made?

answered Nov 20, 2010 at 19:00

28 votes

Identifying poisoned wines

answered Jun 8, 2011 at 4:11

21 votes

Does War have infinite expected length?

answered Oct 1, 2010 at 17:22

14 votes

Accepted

What is the expected maximum out of a sample (size N) from a geometric distribution?

answered Oct 9, 2010 at 17:18

12 votes

Can assignment solve stable marriage?

answered Nov 14, 2010 at 6:43

11 votes

What topics should be included in a calculus-for-the-liberal arts course?

answered Nov 10, 2010 at 21:47

11 votes

Binomial coefficient in Andrews' partition book

answered Oct 19, 2011 at 20:17

10 votes

Accepted

Multiplicative Convolution for Binomial Coefficients

answered Apr 15, 2011 at 0:55

8 votes

Extending arithmetic functions to groups

answered Feb 11, 2011 at 5:06

8 votes

What is the expected maximum out of a sample (size N) from a geometric distribution?

answered Oct 10, 2010 at 0:50

7 votes

Accepted

Random Sampling a linearly constrained region in n-dimensions...

answered Sep 24, 2011 at 3:07

6 votes

Accepted

How to solve a specific multivariate recurrence relation (or general ones)

answered Nov 29, 2012 at 23:53

6 votes

Combinatorial results without known combinatorial proofs

answered Oct 9, 2010 at 6:41

5 votes

Nontrivial question about Fibonacci numbers?

answered Nov 19, 2010 at 18:03

5 votes

Accepted

How does a tournament's structure affect the likelihood that the best player will win?

answered Nov 23, 2010 at 6:34

5 votes

Accepted

Expected second moment for random points on a circle

answered Jan 19, 2011 at 21:08

5 votes

Coin flipping and a recurrence relation

answered Feb 16, 2011 at 21:42

5 votes

Accepted

Asymptotic difference between a function and its "binomial average"

answered Feb 17, 2011 at 23:17

4 votes

Accepted

Maximum vertical distance for a lattice path when NSEW steps are allowed

answered Dec 30, 2011 at 7:21

4 votes

Accepted

Some questions about Invexity

answered Oct 27, 2010 at 5:37

4 votes

expected values over binomial distributions

answered Oct 4, 2010 at 22:29

3 votes

what is the difference between the revised simplex method andthe full tableu?

answered Oct 6, 2010 at 3:21

3 votes

Second order Taylor expansion to solve system of equations

answered Oct 2, 2010 at 22:44

3 votes

How to solve a generalization of the Coupon Collector's problem

answered Oct 13, 2010 at 6:14

2 votes

Accepted

Finding the determinant of a matrix with LU composition

answered Oct 24, 2010 at 22:09

2 votes

Accepted

Can subgradient infer convexity?

answered Oct 26, 2010 at 4:19

1 vote

Summation of a series of floor functions

answered Dec 7, 2010 at 3:45

0 votes

Least square given constraint on subcomponents

answered Nov 23, 2010 at 2:07

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29 Answers

What recent discoveries have amateur mathematicians made?

Identifying poisoned wines

More open problems

Does War have infinite expected length?

What is the expected maximum out of a sample (size N) from a geometric distribution?

Can assignment solve stable marriage?

What topics should be included in a calculus-for-the-liberal arts course?

Binomial coefficient in Andrews' partition book

Multiplicative Convolution for Binomial Coefficients

Extending arithmetic functions to groups

What is the expected maximum out of a sample (size N) from a geometric distribution?

Random Sampling a linearly constrained region in n-dimensions...

How to solve a specific multivariate recurrence relation (or general ones)

Combinatorial results without known combinatorial proofs

Nontrivial question about Fibonacci numbers?

How does a tournament's structure affect the likelihood that the best player will win?

Expected second moment for random points on a circle

Coin flipping and a recurrence relation

Asymptotic difference between a function and its "binomial average"

Maximum vertical distance for a lattice path when NSEW steps are allowed

Some questions about Invexity

expected values over binomial distributions

what is the difference between the revised simplex method andthe full tableu?

Second order Taylor expansion to solve system of equations

How to solve a generalization of the Coupon Collector's problem

Finding the determinant of a matrix with LU composition

Can subgradient infer convexity?

Summation of a series of floor functions

Least square given constraint on subcomponents