David Johnson's Home Page

To contact me, send e-mail to david.johnson@Lehigh.EDU.

David L. Johnson

Christmas-Saucon #241 14 E. Packer Avenue

Department of Mathematics

Lehigh University

Bethlehem, PA 18015-3174

Telephone: (610) 758-3759 (office)

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since October 18, 1996.

Research: My research intersests center around differential geometry, with excursions into complex geometry and geometric measure theory. For my CV and other information, follow: Research interests.

Lehigh University Geometry/Topology Conference

Check here for information on the Lehigh University Geometry and Topology Conference, which will be held June 12-14, 2003.

To find out more, check: Lehigh Geometry/Topology Conference

Lecture Notes.

For reasons beyond explanation, I have been providing lecture notes in classes I have taught over the last few years. In an act of extreme altruism, or extreme conceit (take your pick), I'll eventually make these available over the web. These links will take you to the files for various courses, as Lehigh students can see them. Most of the newer files are in html format, readable by most of the newer Web browsers. If you have trouble, follow the TTH links on the bottom to find tips to make the symbols display correctly.

My recent courses have been posted onto Lehigh's Courseinfo site, which requires a Lehigh ID to enter. Many of the Web pages from that are achived in a disorganized heap on Johnson's Lehigh Mathematics course material on the Web.

The link just opens up the directory where I keep all these files. It should be self-evident what each one is. They are denoted by [Coursenumber]-[Sectionnumber].[ps | tex | html]. If it has a .ps extension, then your postscript viewer should be able to recognize it. Those with .tex extension are marked-up text files, readable by any editor. The ones with an .html extension should display directly.

Other Interests

For more where this strip came from, check out The Dilbert Zone.

Linux This is a unix-type operating system for 80386-class computers. I've been using linux, instead of dos, on my home computers since June, 1992, so I could run X windows like in our computer lab. This system has been developed essentially on the internet, and is supported by the loose collection of people who use it.

Useful Software. This is a page, mostly of links, of some software that I have found useful, fun, or otherwise noteworthy.

LyX Lyx is a word-processor which uses LaTeX as its typesetting engine, for Xwindows, and is very nicely done. I used to have my own Web page for this, but it is so badly out of date that I dropped it. I haven't been involved in the testing or development of LyX in years. Now, I am just another satisfied user.

Cycling When I was in college, I became rather an avid cyclist. I raced, both road races and track, from '71 to '74 (maybe '75, my memory is fading...). Recently I got back on the bike, and plan "Real soon now" to devote a Web page to my exploits, past, present, and imaginary, and to provide some interesting links. You might check out my developing ride list of rides I have led for my club ( BCP ).

Personal Stuff

A page of information about me, including my vita, stuff I've been told not to put on my vita, and maybe another picture. Ecce Homo

My mother always told me there were three things I should never discuss, Sex, Religion, or Politics. I used to wonder what she expected me to talk about. Of course, I will listen to my mother's advice about sex, for a number of reasons. I will, however, work on the other two.

Last modified January 18, 2001.