# Difference between revisions of "Dean Hickerson"

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'''Dean Robert Hickerson''' is a mathematician and [[:Category:People|Life enthusiast]] who has made many major contributions to the [[Conway's Game of Life|Game of Life]]. | '''Dean Robert Hickerson''' is a mathematician and [[:Category:People|Life enthusiast]] who has made many major contributions to the [[Conway's Game of Life|Game of Life]]. | ||

− | In [[:Category:Patterns_found_in_1989|1989]] Hickerson created the first [[oscillator]] search program with which he found many small, low-[[period]] oscillators, such as [[caterer]], [[Monogram]], and [[fumarole]]. He has since found many [[spark|sparkers]] as well as [[billiard table configuration|billiard tables]], including the | + | In [[:Category:Patterns_found_in_1989|1989]] Hickerson created the first [[oscillator]] search program with which he found many small, low-[[period]] oscillators, such as [[caterer]], [[Monogram]], and [[fumarole]]. He has since found many [[spark|sparkers]] as well as [[billiard table configuration|billiard tables]], including the first known period [[:Category:Oscillators_with_period_17|17]] oscillators. |

Hickerson also used automated searches to discover the first [[spaceship]]s other than the [[glider]] and the various [[speed]] [[c/2 orthogonal|c/2]] orthogonal spaceships; these new spaceships traveled at speeds [[c/3 orthogonal|c/3]], [[c/4 orthogonal|c/4]], and [[2c/5 orthogonal|2c/5]]. In addition to these, he discovered the [[Big_glider|first]] diagonal [[c/4 diagonal|c/4]] spaceship other than the glider, as well as the [[64P2H1V0|first]] period [[:Category:Spaceships_with_period_2|2]] spaceships. He again advanced spaceship technology when, in 1991, he successfully combined thirteen [[switch engine]]s to create the first [[c/12 diagonal|c/12]] diagonal spaceship, the [[13-engine Cordership]]. | Hickerson also used automated searches to discover the first [[spaceship]]s other than the [[glider]] and the various [[speed]] [[c/2 orthogonal|c/2]] orthogonal spaceships; these new spaceships traveled at speeds [[c/3 orthogonal|c/3]], [[c/4 orthogonal|c/4]], and [[2c/5 orthogonal|2c/5]]. In addition to these, he discovered the [[Big_glider|first]] diagonal [[c/4 diagonal|c/4]] spaceship other than the glider, as well as the [[64P2H1V0|first]] period [[:Category:Spaceships_with_period_2|2]] spaceships. He again advanced spaceship technology when, in 1991, he successfully combined thirteen [[switch engine]]s to create the first [[c/12 diagonal|c/12]] diagonal spaceship, the [[13-engine Cordership]]. |

## Latest revision as of 07:50, 28 November 2019

Dean Hickerson | |

Born | Unknown |
---|---|

Residence | United States |

Nationality | Unknown |

Institutions | Unknown |

Alma mater | University of California, Berkeley |

**Dean Robert Hickerson** is a mathematician and Life enthusiast who has made many major contributions to the Game of Life.

In 1989 Hickerson created the first oscillator search program with which he found many small, low-period oscillators, such as caterer, Monogram, and fumarole. He has since found many sparkers as well as billiard tables, including the first known period 17 oscillators.

Hickerson also used automated searches to discover the first spaceships other than the glider and the various speed c/2 orthogonal spaceships; these new spaceships traveled at speeds c/3, c/4, and 2c/5. In addition to these, he discovered the first diagonal c/4 spaceship other than the glider, as well as the first period 2 spaceships. He again advanced spaceship technology when, in 1991, he successfully combined thirteen switch engines to create the first c/12 diagonal spaceship, the 13-engine Cordership.

In 1991 Hickerson created the first sawtooth, sawtooth 1212, using one of his c/3 spaceships, the turtle.

## Patterns found by Dean Hickerson

### 3

### 5

### N

### O

### P

### T

## References

- "Life Credits". Mark D. Niemiec. Retrieved on June 10, 2009.
- Dean Hickerson at the Mathematics Genealogy Project

## External links

- Dean Hickerson's Game of Life Page (hosted by Tomas Rokicki)