Research output per year
Research output per year
Personal profile
Research
Research on linear algebra, operator theory and systems and control theory.
Several current project are concerned with linear algebra in spaces with an indefinite inner product.
Teaching
Teaching: Mathematical control and systems theory, linear algebra, and although it is not my expertise, I am teaching an Introduction to Financial Mathematics course.
Ancillary activities
- Stichting Advancement of Mathematics | Amstelveen | Secretaris/ Penningmeester | 1996-02-01 - present
- Stichting Epsilon | Amsterdam | Bestuurder | 2018-07-03 - present
Ancillary activities are updated daily
Academic qualification
Mathematics, PhD, Vrije Universiteit Amsterdam
Award Date: 29 Jun 1984
Mathematics, Master, Vrije Universiteit Amsterdam
Award Date: 25 Apr 1979
Mathematics, Bachelor, Vrije Universiteit Amsterdam
Award Date: 26 Oct 1976
Keywords
- QA Mathematics
- Linear Algebra
- Operator Theory
- Linear Systems Theory
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Network
Recent external collaboration on country level. Dive into details by clicking on the dots or
Research output
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A Toeplitz-Like Operator with Rational Matrix Symbol Having Poles on the Unit Circle: Fredholm Properties
Groenewald, G. J., ter Horst, S., Jaftha, J. & Ran, A. C. M., Feb 2021, In : Complex Analysis and Operator Theory. 15, 1, p. 1-29 29 p.Research output: Contribution to Journal › Article › Academic › peer-review
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mth roots of H-selfadjoint matrices
Groenewald, G. J., Janse van Rensburg, D. B., Ran, A. C. M., Theron, F. & van Straaten, M., 1 Feb 2021, In : Linear Algebra and its Applications. 610, p. 804-826 23 p.Research output: Contribution to Journal › Article › Academic › peer-review
Open Access -
Equivalence After Extension and Schur Coupling for Relatively Regular Operators
ter Horst, S., Messerschmidt, M. & Ran, A. C. M., Oct 2020, In : Integral Equations and Operator Theory. 92, 5, p. 1-23 23 p., 40.Research output: Contribution to Journal › Article › Academic › peer-review
Open AccessFile1 Downloads (Pure) -
A toeplitz-like operator with rational symbol having poles on the unit circle II: The spectrum
Groenewald, G. J., ter Horst, S., Jaftha, J. & Ran, A. C. M., 1 Jan 2019, Interpolation and Realization Theory with Applications to Control Theory: In honor of Joe Ball. Bolotnikov, V., ter Horst, S., Ran, A. C. M. & Vinnikov, V. (eds.). Springer International Publishing AG, p. 133-154 22 p. (Operator Theory: Advances and Applications; vol. 272).Research output: Chapter in Book / Report / Conference proceeding › Chapter › Academic › peer-review
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A Toeplitz-Like Operator with Rational Symbol Having Poles on the Unit Circle III: The Adjoint
Groenewald, G. J., ter Horst, S., Jaftha, J. & Ran, A. C. M., Oct 2019, In : Integral Equations and Operator Theory. 91, 5, p. 1-23 23 p., 43.Research output: Contribution to Journal › Article › Academic › peer-review
Open Access
Activities
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North-West University, Private Bag X6001, Potchefstroom 2520, Zuid Afrika (External organisation)
A.C.M. Ran (Member)
2011 → 2023Activity: Membership › Academic
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Generalized Bezoutians in the theory of algebraic Riccati equations.
A.C.M. Ran (Speaker)
2000Activity: Lecture / Presentation › Academic
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Stability properties of invariant subspaces of matrices.
A.C.M. Ran (Speaker)
2000Activity: Lecture / Presentation › Academic
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SIAM Journal on Matirix Analysis and Applications (External organisation)
A.C.M. Ran (Member)
2000Activity: Membership › Academic