| Structured noncommutative multidimensional linear systems JA Ball, G Groenewald, T Malakorn SIAM journal on control and optimization 44 (4), 1474-1528, 2005 | 127 | 2005 |
| Conservative structured noncommutative multidimensional linear systems JA Ball, G Groenewald, T Malakorn The state space method generalizations and applications, 179-223, 2005 | 87 | 2005 |
| Bounded real lemma for structured noncommutative multidimensional linear systems and robust control JA Ball, G Groenewald, T Malakorn Multidimensional Systems and Signal Processing 17 (2-3), 119-150, 2006 | 56 | 2006 |
| Rank one perturbations of H-positive real matrices JH Fourie, GJ Groenewald, DBJ van Rensburg, ACM Ran Linear Algebra and its Applications 439 (3), 653-674, 2013 | 17 | 2013 |
| Bounded real lemma and structured singular value versus diagonal scaling: the free noncommutative setting JA Ball, G Groenewald, S Ter Horst Multidimensional Systems And Signal Processing 27 (1), 217-254, 2016 | 14 | 2016 |
| Column reduced rational matrix functions with given null-pole data in the complex plane JA Ball, MA Kaashoek, G Groenewald, J Kim Linear algebra and its applications 203, 67-110, 1994 | 13 | 1994 |
| Standard versus strict Bounded Real Lemma with infinite-dimensional state space II: The storage function approach JA Ball, GJ Groenewald, S Ter Horst The Diversity and Beauty of Applied Operator Theory, 1-50, 2018 | 10 | 2018 |
| A Toeplitz-like operator with rational symbol having poles on the unit circle I: Fredholm properties GJ Groenewald, S Ter Horst, J Jaftha, ACM Ran Operator Theory, Analysis and the State Space Approach, 239-268, 2018 | 10 | 2018 |
| A Toeplitz-like operator with rational symbol having poles on the unit circle II: the spectrum GJ Groenewald, S ter Horst, J Jaftha, ACM Ran Interpolation and Realization Theory with Applications to Control Theory …, 2019 | 9 | 2019 |
| Standard versus strict bounded real lemma with infinite-dimensional state space I: The state-space-similarity approach JA Ball, GJ Groenewald, S Ter Horst arXiv preprint arXiv:1804.08507, 2018 | 8 | 2018 |
| Wiener–Hopf indices of unitary functions on the unit circle in terms of realizations and related results on Toeplitz operators GJ Groenewald, MA Kaashoek, ACM Ran Indagationes Mathematicae 28 (3), 694-710, 2017 | 7 | 2017 |
| Wiener-Hopf indices of unitary functions on the unit circle in terms of realizations and related results on Toeplitz operators. A Ran, MA Kaashoek, G Groenewald Indagationes Mathematicae 28 (3), 649-710, 2017 | 7 | 2017 |
| A Toeplitz-like operator with rational symbol having poles on the unit circle III: the adjoint GJ Groenewald, S Ter Horst, J Jaftha, ACM Ran arXiv preprint arXiv:1812.07239, 2018 | 6 | 2018 |
| Topologies for which every nonzero vector is hypercyclic H Petersson, K Li, HC Liao, Z Hao, M Popa, A Kuzmin, N Pochekai, ... Journal of Operator Theory 80 (1), 3-24, 2018 | 6 | 2018 |
| Positive real matrices in indefinite inner product spaces and invariant maximal semidefinite subspaces JH Fourie, GJ Groenewald, ACM Ran Linear algebra and its applications 424 (2-3), 346-370, 2007 | 6 | 2007 |
| Characterization of integral operators with semi-separable kernels with symmetries GJ Groenewald, MA Petersen, ACM Ran Journal of Functional Analysis 219 (2), 255-284, 2005 | 6 | 2005 |
| A canonical form for H-unitary matrices GJ Groenewald, DB Janse van Rensburg, ACM Ran Ele-Math, 2016 | 5 | 2016 |
| Simple forms and invariant subspaces of H-expansive matrices JH Fourie, GJ Groenewald, DBJ van Rensburg, ACM Ran Linear Algebra and its Applications 470, 300-340, 2015 | 5 | 2015 |
| A Gohberg-Heinig type inversion formula involving Hankel operators GJ Groenewald, MA Kaashoek Interpolation, Schur functions and moment problems, 291-302, 2005 | 5 | 2005 |
| Inversion of Toeplitz operators with rational symbols via factorization and realization GJ Groenewald Quaestiones Mathematicae 19 (1-2), 357-378, 1996 | 5 | 1996 |
