S O R R Y !

	You have requested a page which does not really exist!

	The Mathematics Subject Classification contains 61 primary
	areas, over 400 secondary areas, and more than 5000 tertiary
	fields. At this time there are pages offering an overview
	of all primary areas and several dozen secondary and
	tertiary areas. It is hoped that pages for most of the
	secondary areas can be added, but it is unlikely that very
	many tertiary specialties will be given a page in the
	foreseeable future.

	If you find material which you think would serve as a good
	interim page for a certain topic, please write to
	rusin@math.niu.edu  and a link will be provided for future
	visitors.

	This message is returned for (currently) 1112 bogus links on
	the index pages.

	1999/01/13