Padraig Ó Catháin's user avatar
Padraig Ó Catháin's user avatar
Padraig Ó Catháin's user avatar
Padraig Ó Catháin
  • Member for 11 years, 5 months
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26 votes

Unrigorous British mathematics prior to G.H. Hardy

9 votes

Cardinality of the maximum points of the determinant on matrices with entries in [-1, 1]

8 votes

Are these two methods for constructing Hadamard matrices known?

6 votes

Isomorphism testing in STS(13)

5 votes

Distribution of the powers of a primitive element of a finite field

5 votes
Accepted

Creating a Latin rectangle from a projective plane

5 votes
Accepted

What is the mathematician's definition of the determinant?

4 votes
Accepted

For which finite projective planes can the incidence structure be written as a circulant matrix?

3 votes

A family of difference sets (paper by A. L. Whiteman)

3 votes

A circulant coin weighing problem

3 votes

Large Intersecting Subsets of a Set

2 votes

A combinatorial optimization problem

2 votes

Permutations of $(Z/pZ)^*$

1 vote

Has this kind of design been studied before?

1 vote

Regular graphs with strongly regular edge colorings