Norman L. Gilbreath

from Wikipedia, the free encyclopedia

Norman Laurence Gilbreath (* 1936 ) is an American amateur mathematician, computer scientist and amateur magician.

His main occupation was a computer expert and worked for the Rand Corporation on compilers and optimization tasks, among other things. As an amateur magician, he is known for the Gilbreath principle of riffle shuffling (published in The Linking Ring, Volume 38, No. 5, July 1958). The trick was known to some magicians before.

In number theory he is known for Gilbreath's conjecture . He found this as a student in 1958 at the University of California, Los Angeles . Two fellow students (RB Killgrove, KE Ralston) tested these on UCLA's SWAC computer and confirmed them for the first 63,419 prime numbers.

Gilbreath lives in Los Angeles and was still performing regularly as an amateur magician at Hollywood's Magic Castle in the mid-2000s.

Fonts

  • Magic for an Audience, Genii Magazine, Volume 52, Numbers 9, 10, 11, March, April, May 1989

Web links

Individual evidence

  1. ↑ Short biography, photo
  2. ↑ Donald Simanek Martin Gardner's Mathemagic , Gardner treated the card trick in New Mathematical Diversions from Scientific American and The Mathematical Magic Show
  3. ^ The first Norman Invasion, MAA 2005
  4. ↑ Kyle Sturgill-Simon An interesting opportunity - the Gilbreath conjecture ( Memento of the original from October 30, 2013 in the Internet Archive ) Info: The archive link was automatically inserted and not yet checked. Please check the original and archive link according to the instructions and then remove this notice. , 2012, pdf @1@ 2Template: Webachiv / IABot / www.carroll.edu
personal data
SURNAME Gilbreath, Norman L.
ALTERNATIVE NAMES Gilbreath, Norman Lawrence
BRIEF DESCRIPTION American computer expert and amateur mathematician
DATE OF BIRTH 1936