Finite
Geometry Notes |

The Diamond Theorem (html) (pdf)

See also...The Diamond 16 Puzzle

Cases of the diamond theorem

2002 May 22 (html)

The [simpler] Kaleidoscope Puzzle

Geometry of the 4x4 Square

See also...Finite Relativity

The Miracle Octad Generator (MOG) of R. T. Curtis

2005 Nov. 30 (html)

Binary Coordinate Systems

Inscapes:

Inscapes: views of the generalized quadrangle GQ(2,2)The Geometry of Logic

2006 Jan. 19 (html)

Inscapes I,

1982 June 12 (jpg) (pdf)

Inscapes II, query,

1982 Sept. 22 (jpg) (html) (pdf)

Inscapes III: PG(2,4) from PG(3,2),

1986 Feb. 4 (jpg)

The 2-subsets of a 6-set are the points of a PG(3,2)

1986 May 26 (jpg)

Inscapes IV: Inner and outer group actions,

1986 July 11 (jpg)

Picturing the smallest projective 3-space,

1986 April 26 (jpg) (gif) (pdf)

A linear complex related to M_{24}

1986 May 8 (jpg)

An outer automorphism of S_{6}related to M_{24}

1986 June 11 (jpg)

Picturing outer automorphisms of S_{6}

1986 July 3 (jpg)

The smallest projective (3-)space

2002 May 21 (html)

The Geometry of Qubits

Orthogonality of Latin squares viewed as skewness of lines

1978 December (jpg) (pdf)

Latin-Square Geometry

2005 Feb. 6 (html) (pdf)

Diamond Theory in 1937:

An Exercise in Carmichael

Research Announcement (1978)

Quilt Geometry

List of problems related to permutations acting on a 16-set in

2001 (html)