James B. Shearer

IBM - Personal communication

This web page records the history of this web site. Dates given are when I made changes.

January 2002 - July 2004: Symmetric Golomb square material added. Some improvements to difference triangle set bounds. Other small changes and fixes.
January-December 2001: Usenet postings added. A few more updates to difference triangle set upper bounds. Links added to favorite authors page. Other small changes and fixes.
January-December 2000: Updates to difference triangle set upper bounds from continuing computer searches. Difference triangle set lower bounds added. Difference triangle set search programs added. Updates to Golomb rectangle pages from additional computer searches. Usage statistics added. Other small changes and fixes.
September-December 1999: More updates to difference triangle set bounds from new computer searches. Other minor changes.
July-August 1999: More updates to difference triangle set bounds from new computer searches. Other minor changes.
November 1998 - April 1999: Difference triangle material updated to reflect results of new computer searches. New material added to combinatorial computing section (disjoint Golomb rulers, modular Golomb rulers and Graham-Sloane functions). Golomb ruler exhaustive search programs made available. Publication list updated. Citations updated. Other minor changes and updates.
October 1998: New papers added. Material (mostly about difference triangle sets) added to combinatorial computing section. Other minor changes and updates made.
August 1998: New (21 mark) Golomb ruler added. Photos of me and some material about chess added to personal (More about me) section.
April 1998: Some corrections made to the Golomb ruler material.
January-February 1998: Combintorial computing page created. Material about Golomb rulers and Golomb rectangles included. Citations updated through 1997. Other minor changes and updates made.
October 1, 1997: Some small changes and fixes made.
September 26, 1997: Web site made externally visible.
September 1997: Some minor changes and updates made.
November 1996 - February 1997: This web site created. Initial material included a lot of information about my mathematical papers and some information about my IBM work and about me.