A Note on Discrete-System Reduction via Impulse Response Gramian. - Younseok Choo (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2005)

On the Property of a Discrete Impulse Response Gramian with Application to Model Reduction. - Younseok Choo (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2005)

Computing Transformation Matrix for Bilinear S-Z Transformation. - Younseok Choo (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2007)

Schur Stability of Convex Combinations of Complex Polynomials. - Younseok Choo; GinKyu Choi (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2007)

Successive Computation of Transformation Matrices for Arbitrary Polynomial Transformation. - Younseok Choo; GinKyu Choi (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2009)

On Pascal Matrix for Transforming Lowpass Analog Filter to Bandpass Digital Filter. - Younseok Choo; GinKyu Choi (IEEE Signal Process. Lett., 2009)

Computing Transformation Matrices for Arbitrary Polynomial Transformation. - Younseok Choo; Dongmin Kim (IEEE Signal Process. Lett., 2009)

Further Results on Jury Test for Complex Polynomials. - Younseok Choo (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2010)

Simple Proof of Jury Test for Complex Polynomials. - Younseok Choo; Dongmin Kim (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2010)

An elementary proof of the Jury test for real polynomials. - Younseok Choo (Autom., 2011)

On the Monotonic Condition for Schur Stability of Real Polynomials. - Younseok Choo; GinKyu Choi (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2011)

A Simplified Jury's Table for Complex Polynomials. - Younseok Choo; Young-Ju Kim (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2011)

Computing Transformation Matrix for 1-D to 2-D Polynomial Transformation. - Younseok Choo; Young-Ju Kim (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2012)

On the Robustness of Hurwitz Polynomials under Coefficient Perturbation. - Younseok Choo (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2014)

Improved Optimum Radius for Robust Stability of Schur Polynomials. - Younseok Choo (J. Optim. Theory Appl., 2014)

Necessary Conditions for θ-Stability of Real Polynomials. - Younseok Choo (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2016)

On the Reciprocal Sums of Products of Fibonacci Numbers. - Younseok Choo (J. Integer Seq., 2018)