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 | Bestuurder | 1996-02-19 - present
- North-West University | Potchefstroom | buitengewoon hoogleraar | 2011-04-01 - present
- Stichting Epsilon | Amsterdam | Bestuurder | 2018-05-01 - present
Ancillary activities are updated daily
Expertise related to UN Sustainable Development Goals
In 2015, UN member states agreed to 17 global Sustainable Development Goals (SDGs) to end poverty, protect the planet and ensure prosperity for all. This person’s work contributes towards the following SDG(s):
Academic qualification
Mathematics, PhD, Semidefinite invariant subspaces, stability and applications, Vrije Universiteit Amsterdam
Award Date: 29 Jun 1984
Mathematics, Master, Spectral factorization of weakly hyperbolic operator polynomials, 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
Fingerprint
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Collaborations and top research areas from the last five years
Recent external collaboration on country/territory level. Dive into details by clicking on the dots or
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A Toeplitz-like operator with rational matrix symbol having poles on the unit circle: Fredholm characteristics
Groenewald, G. J., ter Horst, S., Jaftha, J. J. & Ran, A. C. M., 15 Sept 2024, In: Linear Algebra and its Applications. 697, p. 155-183 29 p.Research output: Contribution to Journal › Article › Academic › peer-review
Open Access -
Special issue in honor of Albrecht Böttcher
Bart, H., Ehrhardt, T., Ran, A. & Spitkovsky, I., 15 Sept 2024, In: Linear Algebra and its Applications. 697, p. 1-31 31 p.Research output: Contribution to Journal › Editorial › Academic › peer-review
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Wiener-Hopf indices of unimodular functions on the unit circle, revisited
Frazho, A. E., Kaashoek, M. A., Ran, A. C. M. & van Schagen, F., 15 Sept 2024, In: Linear Algebra and its Applications. 697, p. 201-231 31 p.Research output: Contribution to Journal › Article › Academic › peer-review
Open Access -
RATIONAL SOLUTIONS OF THE MATRIX EQUATION p(X) = A∗
Groenewald, G. J., Goosen, G., JANSE VAN RENSBURG, D. J., Ran, A. C. M. & Thiersen, M., Aug 2024, In: Electronic Journal of Linear Algebra. 40, p. 564-573 10 p.Research output: Contribution to Journal › Article › Academic › peer-review
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An interlacing result for Hermitian matrices in Minkowski space
Janse van Rensburg, D. B., Ran, A. C. M. & van Straaten, M., 15 Jul 2024, In: Linear Algebra and its Applications. 693, p. 236-247 12 p.Research output: Contribution to Journal › Article › Academic › peer-review
Open Access
Courses
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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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Nieuw Archief voor Wiskunde (External organisation)
A.C.M. Ran (Member)
2000Activity: Membership › 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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Symmetric factorizations of selfadjoint rational matrix functions.
A.C.M. Ran (Speaker)
2000Activity: Lecture / Presentation › Academic
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Generalized Bezoutians in the theory of algebraic Riccati equations.
A.C.M. Ran (Speaker)
2000Activity: Lecture / Presentation › Academic