C. T. (Tim) Kelley
Drexel Professor of Mathematics (Retired)
Named Professor Emeritus of Mathematics

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My current research interests are in linear/nonlinear equations, mixed-precision algorithms, neutron transport problems, and computational quantum chemistry and physics.

In the past I worked on multilevel methods for integral equations, quasi-Newton methods, semiconductor modeling, optimal control, optimization of noisy functions, and flow in porous media.

I distribute MATLAB software for Linear Equations, Nonlinear Equations, and Optimization . I have new Julia software for Nonlinear equations.

FAQs:

• What kind of book is this?
  It's an orange book.
• What is this book about?
  It's about 200 pages.
• Have you written any other books?
  Yes.

• I am officially retired, collecting a pension, Social Security, and Medicare.
• My title is (and I am not making this up) Named Professor Emeritus
• My half-time appointment ended on July 1. I am now on a part-time (<< 10% FTE) appointment through 9/30/25 to work on ...
  • the DOE funded CEMeNT project,
  • one more book,
  • the SIAM Advancement Advisory Committee , Financial Management Committee , and Book Committee
• Students, read this!
  • If you want to put me on your PhD committee, I will do it if and only if
    • you are part of the CEMeNT project,
    • expect to finish no later than 12/31/2025, and
    • I live that long.
  • No exceptions.

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  New stuff

  Lea Jenkins (PhD 2000) is the new SIAM VP for Education. Yet another former student becomes a big shot.
  

  SIAM has noticed that I have a new job
  

  My last PhD student Zack Morrow left the building on July 9, 2021. He is now at Sandia.
  

  Katie is now the Robert A. Plane Endowed Chair at Clarkson University
  

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  Old new stuff

  My term as SIAM board chair expired in Dec 2019. Praise to the term limit gods!
  

  They made me a fellow of the AAAS .
  

  Why publish with SIAM?

  The Mathematics Department at Purdue gave me the outstanding Alumnus Award for 2013.
  

  I'm somebody now! Scroll to the bottom of Henk van der Vorst's
  math portrait page.
  

  Why should you join SIAM ?
  

  A REALLY OLD picture.