Leading authority on `deconvolution' and other ill-posed problems of applied mathematics. Invented `slowly divergent' computational schemes for inverse heat conduction calculations in gun barrels, rocket nozzles, and nuclear reactors. Developed `pulse probing and continuous deconvolution' technique for dynamic characterization of structural networks, ultrasonic testing in NDE, and system identification in electronic black-boxes. Invented `slow evolution' constraint for stabilizing digital image deblurring computations in presence of noise, with applications in biomedical imaging, (X-rays, CT, PET, SPECT, MRI), acoustic imaging, undersea imaging, imaging through atmospheric turbulence, and night vision systems. Patents pending on new procedure for image restoration.