W. S. Gray, L. A. Duffaut Espinosa, and K. Ebrahimi-Fard, "Analytic Left Inversion of SISO Lotka-Volterra Models," Proc. 49th Conference on Information Sciences and Systems, Baltimore, Maryland, 2015.
L. A. Duffaut Espinosa, K. Ebrahimi-Fard, and W. S. Gray, "A Combinatorial Hopf Algebra for Nonlinear Output Feedback Control Systems," under review.
W. S. Gray, L. A. Duffaut Espinosa, and M. Thitsa, "Left Inversion of Analytic Nonlinear SISO Systems via Formal Power Series Methods," Automatica, vol. 50, no. 9, September 2014, pp. 2381-2388.
W. S. Gray, L. A. Duffaut Espinosa, and K. Ebrahimi-Fard, "Faà di Bruno Hopf Algebra of the Output Feedback Group for Multivariable Fliess Operators," Systems & Control Letters, vol. 74, December 2014, pp. 64-73.
W. S. Gray, L. A. Duffaut Espinosa, and K. Ebrahimi-Fard, "Recursive Algorithm for the Antipode in the SISO Feedback Product," Proc. 21st International Symposium on the Mathematical Theory of Networks and Systems, Groningen, The Netherlands, 2014, pp. 1088-1093.
W. S. Gray, L. A. Duffaut Espinosa, and K. Ebrahimi-Fard, "Analytic Left Inversion of Multivariable Lotka-Volterra Models," Proc. 54nd IEEE Conference on Decision and Control, Osaka, Japan, 2015.
W. S. Gray, L. A. Duffaut Espinosa, and K. Ebrahimi-Fard, "Discrete-Time Approximations of Fliess Operators," Oct. 2015, arXiv:1510.07901v1.
W. S. Gray, and K. Ebrahimi-Fard, "Affine SISO Feedback Transformation Group and Its Faà di Bruno Hopf Algebra," November 2014, arXiv:1411.0222.
W. S. Gray, L. A. Duffaut Espinosa, and K. Ebrahimi-Fard, "Dendriform-Tree Setting for Fully Non-commutative Fliess Operators,” submitted preprint, January 2015.