David Jeffrey

David-Jeffrey.png

  • Professor
  • SMSS Outreach and Research Director
  • Department of Mathematics, University of Western Ontario
    1151 Richmond Street, London, ON N6A 5B7, Canada
  • Office: Middlesex College, Room 252
  • Phone: 519-661-211 x8876
  • Email: djeffrey@uwo.ca

 

Research Interests

  • Microhydrodynamics
  • Low Reynolds Number Flow
  • Lubrication
  • Suspensions of particles
  • Flows in Industrial Machinery
  • Computer Algebra Systems

 

Noteable Publications

  • with S. Liang, M. Moreno Maza: The complete root classification of a parametric polynomial on an interval. In: Proceedings of ISSAC 2008, pp 189-196, ACM Press 2008
  • with R.M. Corless, H. Ding, N.J. Higham: The solution of S*exp(S)=A is not always the Lambert W function of A. In: "ISSAC 2007", Editor C.W.Brown, pp 116--121, ACM Press, 2007

 

Integration

The two files LoadAndUseIntegral.nb and Integral.m are a pair of Mathematica notebooks which implement the calculation of comprehensive integrals with Kahanian constants. The theory behind the computation is described in the paper "Integrals of functions containing parameters" by Corless, Jeffrey and Stoutemyer, The Mathematical Gazette, November 2020. A PDF of the paper is available below. The file LoadAndUseIntegral.nb will load the second file (as its name suggests) and provide an interface to the calculation. The file KahanianIntegration.nb only contains the same instructions as this description and is included here to intercept searches based on earlier published references.

 

Programs for Stokes resistance functions

The programs are available upon request.


Stokes Mobility Functions

The programs are available upon request

 

Publications

 

Poetry

 

Photos