Google Scholar  Kui Ren  Researcher ID 
Office: RLM 10.170 Phone: 5124713152 Fax: 5124719038 Email: ren@math.utexas.edu 

Department of
Mathematics & ICES University of Texas at Austin 2515 Speedway, Stop C1200 Austin, TX 787121202 
I am currently an associate professor in the Department of Mathematics and Institute for Computational Engineering and Science in the University of Texas at Austin. I got my PhD from Columbia University and spent a year as a L. E. Dickson instructor in University of Chicago before I moved to Austin in Fall 2008.
I have been coordinating the Math/ICES Center of Numerical Analysis Seminar since I joined University of Texas at Austin.
Here are some information on the undergraduate/graduate courses I am teaching/have taught.
Here is my vita in case you are interested.
Here is a very brief research summary .
My main research interests are: inverse boundary value problems, hybrid multiphysics inverse problems, imaging in complex media, numerical algorithms for kinetic equations, statistical physics of random graphs.
Here are some of my recent publications:
Inverse transport problems in quantitative PAT for molecular imaging (with R. Zhang and Y. Zhong), Submitted, 2015. [pdf].
The Asymtotics of Large Constrained Graphs (with C. Radin and L. Sadun), J. Phys. A: Math. Theor. 47, 175001, 2014. [pdf]. One figure in the paper appears on the cover of the journal.
Quantitative photoacoustic imaging in the radiative transport regime (with A. Mamonov), Commun. Math. Sci, 12, 201234, 2014. [pdf].
Inverse transport calculations in
optical imaging with subspace optimization algorithms (with T. Ding), J. Comput. Phys., 273, 212226, 2014 [pdf]
Quantitative fluorescence photoacoustic tomography (with H. Zhao), SIAM J Imag. Sci., 6, 24042429, 2013. [pdf]
Simultaneous reconstruction of ultrasound speed and absorption coefficient in QPAT with differential measurements, Submitted, 2012. [pdf].
A hybrid reconstruction method for quantitative PAT (with H. Gao and H. Zhao), SIAM J. Imag. Sci., 6, 3255, 2013. [pdf]
On the modeling and simulation of semiconductorelectrolyte solar cells (with Y. He, I. M. Gamba and H. Lee), Submitted, 2012. [pdf].
On multispectral quantitative photoacoustic tomography (with G. Bal), Inverse Problems, 28, 025010, 2012. [pdf]. This paper was selected as a featured article by Inverse Problems and then chosen to be included in its collection Highlight of 2012
Quantitative Thermoacoustics and related problems (with G. Bal, G. Uhlmann and T. Zhou), Inverse Problems, 27, 055007, 2011. [pdf].
Multiplesource quantitative photoacoustic tomography (with G. Bal), Inverse Problems, 27, 075003, 2011. [pdf]. Read the news about this paper from Inverse Problems.
Nonuniqueness result for a hybrid inverse problem (with G. Bal), Contemporary Mathematics, 2011. [pdf].
Recovering doping profiles in semiconductor devices with the BoltzmannPoisson model (with Y. Cheng and I. M. Gamba), J. Comput. Phys., 230, 33913412, 2011. [pdf].
Recent development in numerical techniques for transportbased medical imaging methods, Commun. Comput. Phys., 8, 150, 2010. [pdf].
Parametric image reconstruction using the discrete cosine transform for optical tomography (with X. Gu, J. Masciotti and A. H. Hilescher), J. Biomed. Opt., 14, 064003, 2009. [pdf].
Physicsbased models for measurement correlations. Application to an inverse SturmLiouville problem (with G. Bal), Inverse Problems, 25, 055006, 2009. [pdf].
Transportbased imaging in random media (with G. Bal), SIAM Applied Math., 68, 17381762, 2008 . [pdf].
Experimental validation of a transportbased imaging method in highly scattering environments (with G. Bal, L. Carin and D. Liu), Inverse Problems, 23, 25272539, 2007. [pdf].
Transport and diffusionbased optical tomography in small domain: A comparative study (with G. Bal and A. H. Hilescher), Applied Optics, 46, 66696679, 2007. [pdf].
Frequencydomain sensitivity analysis for small imaging domains using the equation of radiative transfer (with X. Gu and A. Hielscher), Appl. Optics, 46, 16241632, 2007. [pdf].
Frequency domain optical tomography based on the equation of radiative transfer (with G. Bal and A. H. Hielscher), SIAM J. Sci. Comput., 28, 14631489, 2006. [pdf].
Reconstruction of singular surfaces by shape sensitivity analysis and level set method (with G. Bal), Math. Models Methods Appl. Sci. (M3AS), 16, 13471373, 2006. [pdf].
Optical tomographic imaging as a PDEconstrained optimization problem (with G. Abdoulaev and A. H. Hielscher), Inverse Problems, 21, 15071530, 2005. [pdf].
Atmospheric concentration profile reconstructions from radiation measurements (with G. Bal), Inverse Problems, 21, 153168, 2005. [pdf].
Algorithm for solving the equation of radiative transfer in the frequency domain (G. S. Abdoulaev, G. Bal and A. H. Hilescher), Optics Lett., 29, 578580, 2004. [pdf].
Generalized diffusion model in optical tomography with clear layers (with G. Bal), J. Opt. Soc. Am. A, 20, 23552364, 2003. [pdf].
Here is a full list of my publications .
My ErdÃ¶s number is 4 according to MathSciNet of American Mathematical Society.
Here are some useful links inside UT Austin: Mathematics Center for Numerical Analysis ICES TACC
Here are links to NSFsupported math institutes: AIM ICERM IMA IPAM MBI MSRI SAMSI
If
you forget who your advisor is, you can figure it out here.
Last updated: July 2013 
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