Brian Hopkins

metro NYC

http://faculty.saintpeters.edu/pages/154.asp

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Easier way to make permutation diagrams?

macros diagrams asked Apr 20, 2013 at 23:41

tex.stackexchange.com

22 votes

Fibonacci, compositions, history

ho.history-overview co.combinatorics nt.number-theory enumeration asked Apr 30, 2011 at 21:57

mathoverflow.net

14 votes

Macro for drawing stacks of colored horizontal rectangles

tikz-pgf diagrams asked Sep 21, 2020 at 13:22

tex.stackexchange.com

13 votes

Fibonacci, compositions, history

combinatorics math-history fibonacci-numbers asked May 18, 2011 at 17:13

math.stackexchange.com

13 votes

Did Thomas Aquinas's correspondent James of Tonengo become bishop of Vercelli?

middle-ages catholic-church italy 13th-century asked Apr 5, 2021 at 2:30

history.stackexchange.com

9 votes

Every possible number of partitions by restricting parts?

nt.number-theory co.combinatorics partitions asked Sep 3, 2019 at 20:32

mathoverflow.net

8 votes

Better code for Ramsey partitions

performance-tuning combinatorics number-theory partitions asked Oct 9 at 22:33

mathematica.stackexchange.com

7 votes

Citation for subset complement result

combinatorics reference-request discrete-mathematics permutations math-history asked Mar 27, 2013 at 6:57

math.stackexchange.com

6 votes

replacing a sub-partition (unordered list; multiset)

list-manipulation replacement pattern-matching asked May 22, 2020 at 0:06

mathematica.stackexchange.com

5 votes

Picking integer compositions with certain descent patterns

pattern-matching combinatorics number-theory asked Apr 8, 2022 at 1:42

mathematica.stackexchange.com

Top Answers

Two-colouring the two-sphere

mathoverflow.net

Is there winning strategy in Tetris ? What if Young diagrams are falling?

mathoverflow.net

When do binomial coefficients sum to a power of 2?

mathoverflow.net

The use of computers leading to major mathematical advances II

mathoverflow.net

Conway's lesser-known results

mathoverflow.net

Counterexamples against all odds

mathoverflow.net

A bijection between sets of Young tableaux of two kinds

mathoverflow.net

Expected cardinality of a randomly chosen element of the family of subsets of $\{1,\ldots,n\}$ with at most $k$-elements

mathoverflow.net

There is a 3-connected 5-regular simple $n$-vertex planar graph iff $n$ satisfies....?

mathoverflow.net

Sidon sets with k >1

mathoverflow.net

Origin and variations of problem on $4xy-x-y$ being square

mathoverflow.net

How often should an editor ask for reviews from the same referee?

academia.stackexchange.com

Your favorite surprising connections in mathematics

mathoverflow.net

Euclid's algorithm as a combinatorial game

mathoverflow.net

Software and ideas for workshops and conferences with long-distance participants

mathoverflow.net

Fibonacci, compositions, history

mathoverflow.net

Counting nested integer partitions

math.stackexchange.com

Plane partitions with equal margins

mathoverflow.net

Number of d-Calabi-Yau partitions

mathoverflow.net

Papers on history and philosophy of mathematics suitable for master's students

mathoverflow.net

Combinatorics: on the number of Celtic knots in an n × m frame

mathoverflow.net

Why is $x^{x^x}=x^{x x}=x^{x^2}=x^{2x}$ wrong?

math.stackexchange.com

Research-level mathematical bookstores

mathoverflow.net

On Einstein's proof of the so-called Pythagorean theorem

hsm.stackexchange.com

What major areas of mathematics have been abandoned?

hsm.stackexchange.com

Is the "Moebius Stairway" Graph Already Known?

mathoverflow.net

Least number of vertices in a graph with which one can uniquely recover some partition of N

mathoverflow.net

4-polytopes with only one kind of regular facet

mathoverflow.net

Why is a dynamical system not a dynamic system?

mathoverflow.net

A generalization of partition function to the sums of squares

mathoverflow.net