Øyvind Ryan

• Antun, Vegard & Ryan, Øyvind (2021). On the Unification of Schemes and Software for Wavelets on the Interval. Acta Applicandae Mathematicae - An International Survey Journal on Applying Mathematics and Mathematical Applications. ISSN 0167-8019. 173. doi: 10.1007/s10440-021-00413-6. Full text in Research Archive Show summary

  Abstract We revisit the construction of wavelets on the interval with various degrees of polynomial exactness, and explain how existing schemes for orthogonal- and Spline wavelets can be extended to compactly supported delay-normalized wavelets. The contribution differs substantially from previous ones in how results are stated and deduced: linear algebra notation is exploited more heavily, and the use of sums and complicated index notation is reduced. This extended use of linear algebra eases translation to software, and a general open source implementation, which uses the deductions in this paper as a reference, has been developed. Key features of this implementation is its flexibility w.r.t. the length of the input, as well as its generality regarding the wavelet transform.

• Masucci, A.; Ryan, Øyvind & Debbah, M. (2011). Polynomial expansion detector for uniform linear arrays. In Tichavsky, Petr (Eds.), 2011 IEEE International Conference on Acoustics, Speech, and Signal Processing. IEEE Signal Processing Society. ISSN 9781457705380. p. 3392–3395. Full text in Research Archive
• Ryan, Øyvind; Masucci, Antonia; Yang, Sheng & Debbah, M. (2011). Finite Dimensional Statistical Inference. IEEE Transactions on Information Theory. ISSN 0018-9448. 57(4), p. 2457–2473. doi: 10.1109/TIT.2011.2112010. Full text in Research Archive
• Ryan, Øyvind (2011). On the Optimal Stacking of Information-Plus-Noise Matrices. IEEE Transactions on Signal Processing. ISSN 1053-587X. 59(2), p. 506–514. doi: 10.1109/TSP.2010.2091276. Full text in Research Archive
• Ryan, Øyvind & Debbah, Mérouane (2011). Convolution Operations Arising From Vandermonde Matrices. IEEE Transactions on Information Theory. ISSN 0018-9448. 57(7), p. 4647–4659. doi: 10.1109/TIT.2011.2145990. Full text in Research Archive
• Ryan, Øyvind & Debbah, Mérouane (2009). Asymptotic Behavior of Random Vandermonde Matrices With Entries on the Unit Circle. IEEE Transactions on Information Theory. ISSN 0018-9448. 55(7), p. 3115–3147. doi: 10.1109/TIT.2009.2021317. Full text in Research Archive
• Khan, B. H.; Ryan, Øyvind; Debbah, Mérouane & Al-Naffouri, T. Y. (2009). Estimation of the distribution of randomly deployed wireless sensors. In Jafar, S. A. (Eds.), Proceedings of the International Symposium on Information Theory, ISIT2009. IEEE (Institute of Electrical and Electronics Engineers). ISSN 9781424443123. p. 2413–2417. Full text in Research Archive
• Ryan, Øyvind (2009). Runlength-Based Processing Methods for Low Bit-depth Images. IEEE Transactions on Image Processing. ISSN 1057-7149. 18(9), p. 2048–2058. doi: 10.1109/TIP.2009.2022436. Full text in Research Archive
• Masucci, A.; Ryan, Øyvind; Yang, S. & Debbah, Mérouane (2009). Finite Dimensional Statistical Inference. In Sokolov, B. (Eds.), 2009 International Conference on Ultra Modern Telecommunications ICUMT 2009 and Workshops Proceedings. IEEE (Institute of Electrical and Electronics Engineers). ISSN 9781424439416. Full text in Research Archive
• Cardoso, Leonardo; Kobayashi, Mari; Ryan, Øyvind & Debbah, Mérouane (2008). Vandermonde frequency division multiplexing for cognitive radio. In Ryan, Øyvind (Eds.), Signal Processing Advances in Wireless Communications, 2008. SPAWC 2008. IEEE 9th Workshop on. IEEE Signal Processing Society. ISSN 9781424420452. p. 421–425. Full text in Research Archive
• Ryan, Øyvind & Debbah, Mérouane (2008). Channel Capacity Estimation Using Free-Probability Theory. IEEE Transactions on Signal Processing. ISSN 1053-587X. 56(11), p. 5654–5667. doi: 10.1109/TSP.2008.927074. Full text in Research Archive
• Ryan, Øyvind & Debbah, Mérouane (2007). Signal Processing Applications of free Probability Theory. In Domanski, Marek (Eds.), Proceedings of the 15th European Signal Processing Conference, EUSIPCO2007. PTETiS Poznań. ISSN 9788392134022. p. 1181–1186. Full text in Research Archive
• Ryan, Øyvind & Debbah, Mérouane (2007). Free Deconvolution for Signal Processing Applications. In Belfiore, Jean-Claude (Eds.), 2007 IEEE International Symposium on Information Theory (ISIT2007). IEEE Sarnoff Symposium. ISSN 9781424414291. p. 1846–1851. Full text in Research Archive
• Ryan, Øyvind (2006). The RIM framework for image processing. Lecture Notes in Computer Science (LNCS). ISSN 0302-9743. 4179, p. 150–160. Full text in Research Archive
• Ryan, Øyvind (2006). Applications of Antialiasing in an Image Processing Framework Setting. In Sveinsson, Johannes R. (Eds.), Proceedings of the 7th Nordic Signal Processing Symposium. IEEE (Institute of Electrical and Electronics Engineers). ISSN 9781424404131. p. 106–110. Full text in Research Archive
• Ryan, Øyvind (2006). On Runlength-based Approaches for Achieving High-speed Compression of Map Images. In Baozong, Yuan; Ruan, Qiuqi & Tang, Xiaofang (Ed.), Proceedings of the 8th international conference on signal processing. IEEE Press. ISSN 9780780397361. p. 1087–1091. Full text in Research Archive

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• Lyche, Tom; Muntingh, Georg & Ryan, Øyvind (2020). Exercises in Numerical Linear Algebra and Matrix Factorizations. Springer Nature. ISBN 9783030597887. 255 p. Full text in Research Archive
• Ryan, Øyvind (2019). Linear Algebra, Signal Processing, and Wavelets - a Unified Approach. MATLAB version. Springer Nature. ISBN 9783030018115. 360 p. Full text in Research Archive
• Ryan, Øyvind (2019). Linear Algebra, Signal Processing, and Wavelets - a Unified Approach. Python version. Springer Nature. ISBN 9783030029395. 364 p. Full text in Research Archive
• Ryan, Øyvind (2011). Oppgaveløsninger til Lindstrøm og Hvebergs Flervariabel analyse med lineær algebra. Pearson Education. ISBN 9780273738824. 207 p. Full text in Research Archive
• Ryan, Øyvind (2008). Signal Processing Advances in Wireless Communications, 2008. SPAWC 2008. IEEE 9th Workshop on. IEEE Signal Processing Society. ISBN 9781424420452. 1000 p. Full text in Research Archive

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• Ryan, Øyvind (2012). A light introduction to wavelets using signal processing and linear algebra. Full text in Research Archive
• Ryan, Øyvind (2011). Computing in Science Education (CSE) A New Way to Teach Science? Full text in Research Archive
• Ryan, Øyvind (2010). On general criteria for when the spectrum of a combination of random matrices dependes only on the spectra of the components. Full text in Research Archive
• Ryan, Øyvind (2010). Vandermonde matrices, adjacency matrices and Fourier-Motzkin elimination. Full text in Research Archive
• Ryan, Øyvind (2010). Some particular types of random matrices and their applictions. Full text in Research Archive
• Ryan, Øyvind (2010). On the optimal stacking of noisy observations. Full text in Research Archive
• Ryan, Øyvind (2010). On general criteria for when the spectrum of a combination of random matrices dependes only on the spectra of the components. Full text in Research Archive
• Ryan, Øyvind (2009). Noncrossing partitions - theory and applications. Full text in Research Archive
• Ryan, Øyvind (2009). Operator algebras - Background and current research. Full text in Research Archive
• Ryan, Øyvind (2009). The statistics of eigenvalue distributions in large random matrices. Full text in Research Archive
• Ryan, Øyvind (2009). The statistics of eigenvalue distributions in large random matrices. Full text in Research Archive
• Ryan, Øyvind (2008). The Mathematics of Data Compression. Full text in Research Archive
• Ryan, Øyvind (2008). The mathematics behind wireless communication. Full text in Research Archive
• Ryan, Øyvind (2008). Fundamental results on Random Vandermonde Matrices. Full text in Research Archive
• Ryan, Øyvind (2008). Channel capacity estimation using free probability theory. Full text in Research Archive
• Ryan, Øyvind (2008). Applications of free probability and random matrix theory. Full text in Research Archive
• Ryan, Øyvind (2008). Free probability: Basic concepts, tools, applications, and relations to other fields. Full text in Research Archive
• Ryan, Øyvind (2008). Applications and fundamental results on random Vandermonde matrices. Full text in Research Archive
• Ryan, Øyvind (2008). Free probability, random Vandermonde matrices, and applications. Full text in Research Archive
• Ryan, Øyvind (2008). Applications and fundamental results on random Vandermonde matrices. Full text in Research Archive
• Ryan, Øyvind (2008). Applications and fundamental results on random Vandermonde matrices. Full text in Research Archive
• Ryan, Øyvind (2008). Channel Capacity Estimation Using free Probability Theory. Full text in Research Archive
• Ryan, Øyvind (2008). Applications of free Probability and Random Matrix Theory. Full text in Research Archive
• Holm, Sverre & Ryan, Øyvind (2006). TV-serien 24, fakta eller teknobabbel. Full text in Research Archive
• Holm, Sverre & Ryan, Øyvind (2006). TV series 24 - fact or fiction? Full text in Research Archive
• Ryan, Øyvind (2006). Efficient implementations of operations on runlength-represented images. Full text in Research Archive
• Ryan, Øyvind (2006). Free deconvolution for signal processing applications. Full text in Research Archive
• Ryan, Øyvind (2006). Free deconvolution for signal processing applications. Full text in Research Archive
• Ryan, Øyvind (2006). Applying multiplicative free deconvolution to find limiting eigenvalue distributions of random matrices. Full text in Research Archive
• Ryan, Øyvind (1997). On the Limit Distributions of Random Matrices with independent or free entries. Universitetet i Oslo. Full text in Research Archive
• Ryan, Øyvind (1996). On the Construction of free Random Variables. Universitetet i Oslo. Full text in Research Archive

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