On the Minimality and Uniqueness of the Bott-Duffin Realization Procedure. - Timothy H. Hughes; Malcolm C. Smith (IEEE Trans. Autom. Control., 2014)

Controllability of passive single-input single-output systems. - Timothy H. Hughes (ECC, 2016)

Behavioral Realizations using Companion Matrices and the Smith Form. - Timothy H. Hughes (SIAM J. Control. Optim., 2016)

A theory of passive linear systems with no assumptions. - Timothy H. Hughes (Autom., 2017)

On the optimal control of non-expansive or passive systems. - Timothy H. Hughes (CoRR, 2017)

Controllability of linear passive network behaviors. - Timothy H. Hughes; Malcolm C. Smith (Syst. Control. Lett., 2017)

Why RLC Realizations of Certain Impedances Need Many More Energy Storage Elements Than Expected. - Timothy H. Hughes (IEEE Trans. Autom. Control., 2017)

On the internal signature and minimal electric network realizations of reciprocal behaviors. - Timothy H. Hughes (Syst. Control. Lett., 2018)

On the Optimal Control of Passive or Nonexpansive Systems. - Timothy H. Hughes (IEEE Trans. Autom. Control., 2018)

On reciprocal systems and controllability. - Timothy H. Hughes (Autom., 2019)

On a concept of genericity for RLC networks. - Timothy H. Hughes; Alessandro Morelli; Malcolm C. Smith (Syst. Control. Lett., 2019)

Minimal Series-Parallel Network Realizations of Bicubic Impedances. - Timothy H. Hughes (IEEE Trans. Autom. Control., 2020)

Dissipativity, reciprocity and passive network synthesis: from Jan Willems' seminal Dissipative Dynamical Systems papers to the present day. - Timothy H. Hughes; Edward H. Branford (CoRR, 2021)