Research Output per year

## Personal profile

### Research profile

Guido (Augustus J.E.M.) Janssen received his Engineering and PhD degree in Mathematics from the Eindhoven University of Technology, The Netherlands, in 1976 and 1979, respectively. From 1979 to 1981 he was a Bateman Research Instructor at the Mathematics Department of California Institute of Technology. From 1981 until 2010 he worked with Philips Research Laboratories, Eindhoven, where he was a Research Fellow since 1999 and recipient of the Gilles Holst award in 2003. His principal responsibility at Philips Research was to provide high-level mathematical service and consultancy in mathematical analysis. He continues his research and consultancy activities from his current affiliations TU/e, EURANDOM (LG 1.39) and Department EE, with further contacts with TU-Delft (Optics) and ASML. In 2003, he was elected Fellow of the IEEE for his contributions to mathematical time-frequency analysis and signal processing. Dr. Janssen has published over 170 papers in the fields of Fourier Analysis, Signal Analysis, Time-Frequency Analysis, Electron Microscopy, Optical Diffraction Theory, Acoustics, and Queueing Theory, and his current interests include the application of mathematical techniques as used in the theory of optical aberrations to the characterization of acoustical radiators.

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## Research Output 1975 2019

## Asymptotics for the long-time evolution of kurtosis of narrow-band ocean waves

Janssen, P. A. E. M. & Janssen, A. J. E. M., 25 Jan 2019, In : Journal of Fluid Mechanics. 859, p. 790-818 29 p.Research output: Contribution to journal › Article › Academic › peer-review

## Counting cliques and cycles in scale-free inhomogeneous random graphs

Janssen, A. J. E. M., van Leeuwaarden, J. S. H. & Shneer, S., Apr 2019, In : Journal of Statistical Physics. 175, 1, p. 161-184 24 p.Research output: Contribution to journal › Article › Academic › peer-review

## Pollaczek contour integrals for the fixed-cycle traffic-light queue

Boon, M., Janssen, A. J. E. M., Leeuwaarden, J. S. H. V. & Timmerman, R. W., 1 Feb 2019, In : Queueing Systems. 91, 1-2, p. 89-111Research output: Contribution to journal › Article › Academic › peer-review

## Approximately dual Gabor frames and almost perfect reconstruction based on a class of window functions

Christensen, O., Janssen, A. J. E. M., Kim, H. O. & Kim, R. Y., 1 Oct 2018, In : Advances in Computational Mathematics. 44, 5, p. 1519–1535 17 p.Research output: Contribution to journal › Article › Academic › peer-review

## Design and processing of invertible orientation scores of 3D images

Janssen, M. H. J., Janssen, A. J. E. M., Bekkers, E. J., Bescós, J. O. & Duits, R., 1 Nov 2018, In : Journal of Mathematical Imaging and Vision. 60, 9, p. 1427–1458 32 p.Research output: Contribution to journal › Article › Academic › peer-review

## Student theses

## Generalized stochastic processes

Author: Janssen, A., 31 Aug 1977Supervisor: Steen, van der, P. (External person) (Supervisor 1) & de Bruijn, N. (. (Supervisor 2)

Student thesis: Master

## Integral operators related to symplectic matrices

Author: Frederix, G., 31 Aug 1977Supervisor: de Bruijn, N. (. (Supervisor 1), Janssen, A. (Supervisor 2) & Nienhuys, J. (External person) (Supervisor 2)

Student thesis: Master