Meet Your Instructor
Jeffrey M. Groah, Ph.D.
Jeffrey.M.Groah@nhmccd.edu

Hi. My name is Jeff Groah. Phonetically, my last name is spelled Grō. A homophone is Grow. On my first driver's license, it was spelled Groan. However, you may call me Jeff.

I received my Ph.D. in mathematics from the University of California at Davis in 1995, and have been teaching math ever since. I was born and raised in Fresno, California located in the agricultural central San Joaquin Valley, and am a recent transplant to Texas. By the way, I highly recommend the book "Lone Star: A History of Texas and the Texans" by T. R. Fehrenbach.  Another quick read is, "The Woodlands: The Inside Story of Creating a Better Hometown" by Roger Galatas, where you will learn about the very rare and humorously tasty Bounty owls.

My recent publications include:

published in in 2007.

Groah, J., Temple, B., Shock-Wave Solutions of the Einstein Equations with Perfect Fluid Sources: Existence and Consistency by a Locally Inertial Glimm Scheme, Memoirs of the American Mathematical Society, November 2004, Vol. 172, No. 813

The "Memoirs" is a very prestigious journal, and I am honored to have such a publication along with the distinguished mathematician J. Blake Temple.

I have some other articles in the pipeline and will keep you informed. In particular, I should mention an article on measuring the surface area of a swimming pool from measurements made along the perimeter. I got the idea for this paper while sitting beside my pool. You might remember that the ancient mathematician Archimedes came up with the idea of his law of buoyancy while floating in the public bath. Unlike Archimedes, I didn't run through the streets of Syracuse naked yelling Eureka! Eureka!, though it is amazing what theories result from relaxation in or near water.

Etymology of the word "Mathematic"
(From Merriam-Webster Dictionary)
Middle English
  Mathematicalle
From Latin
  Mathematicus
From Greek
  Mathematicos
From mathemat-
Mathema=Learning, mathematics
From Manthenein to learn

Dice and the Euler Characteristic
Moon Halos
Do 'Em If You Dare
  Are you up to the challenge? Test you mettle on these problems.
Berkeley Problems
Euclidean Constructions
Lorentz Curve
Solar Calendar and Clock