Minimax design of adjustable FIR filters using 2D polynomial methods. - Bogdan Dumitrescu; Bogdan C. Sicleru; Radu Stefan (ICASSP, 2009)

Least squares design of three-dimensional filter banks using transformation of variables. - Bogdan C. Sicleru; Bogdan Dumitrescu (ICASSP, 2010)

Positive Hybrid Real-Trigonometric Polynomials and Applications to Adjustable Filter Design and Absolute Stability Analysis. - Bogdan Dumitrescu; Bogdan C. Sicleru; Radu Stefan (Circuits Syst. Signal Process., 2010)

FIR filter optimization with POS3POLY in CVX. - Bogdan C. Sicleru; Bogdan Dumitrescu (EUSIPCO, 2011)

Least-squares design of 2-D sparse nonseparable filter banks using transformation of variables: A greedy approach. - Bogdan C. Sicleru; Bogdan Dumitrescu (EUSIPCO, 2012)

Greedy sparse spectral factorization using reduced-size Gram matrix parameterization. - Bogdan C. Sicleru; Bogdan Dumitrescu (EUSIPCO, 2013)

Optimization with sums of exponentials and applications. - Bogdan Dumitrescu; Bogdan C. Sicleru (ICASSP, 2014)

Modeling probability densities with sums of exponentials via polynomial approximation. - Bogdan Dumitrescu; Bogdan C. Sicleru; Florin Avram (J. Comput. Appl. Math., 2016)