Browsing by Author "Santosa, Fadil"
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Item Application of a micro-genetic algorithm in optimal design of a diffractive optical element(2000-04) Rudnaya, Svetlana; Santosa, FadilItem Control of the wave equation by time-dependent coefficient(2002-01) Chambolle, Antonin; Santosa, FadilWe study an initial boundary-value problem for a wave equation with time-dependent soundspeed. In the control problem, we wish to determine a soundspeed function which damps the vibration of the system. We consider the case where the soundspeed can take on only two values, and propose a simple control law. We show that if the number of modes in the vibration is finite, and none of the eigenfrequencies are repeated, the proposed control law does lead energy decay. We illustrate the rich behavior of this problem in numerical examples.Item Efficient calculation of Jacobian and adjoint vector products in wave propagational inverse problem using automatic differentiation(1998-06) Coleman, Thomas F.; Santosa, Fadil; Verma, ArunItem An image enhancement technique for electrical impedance tomography(1993-06) Dobson, David C.; Santosa, FadilItem Level set methods for optimization problems involving geometry and constraints II. Optimization over a fixed surface(University of Minnesota. Institute for Mathematics and Its Applications, 2008-01) Maitre, Emmanuel; Santosa, FadilItem Mathematical Modeling in Industry -IMA Summer Program for Graduate Students - July 22-31, 1998 --Preface(1998-10) Reitich, Fernando; Santosa, FadilItem Resolution and stability analysis of an inverse problem in electrical impedance tomography - dependence on the input current patterns(1992-09) Dobson, David C.; Santosa, FadilItem Scattering in a 2-D optical waveguide.(1999-02) Magnanini, Rolando; Santosa, FadilItem Wave propagation in a 2-D optical waveguide(1999-10) Magnanini, Rolando; Santosa, Fadil