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Control Signals Syst."],"published-print":{"date-parts":[[2020,6]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>\n                    Model order reduction (MOR) techniques are often used to reduce the order of spatially discretized (stochastic) partial differential equations and hence reduce computational complexity. A particular class of MOR techniques is balancing related methods which rely on simultaneously diagonalizing the system Gramians. This has been extensively studied for deterministic linear systems. The balancing procedure has already been extended to bilinear equations, an important subclass of nonlinear systems. The choice of Gramians in Al-Baiyat and Bettayeb (In: Proceedings of the 32nd IEEE conference on decision and control, 1993) is the most frequently used approach. A balancing related MOR scheme for bilinear systems called singular perturbation approximation (SPA) has been described that relies on this choice of Gramians. However, no error bound for this method could be proved. In this paper, we extend SPA to stochastic systems with bilinear drift and linear diffusion term. However, we propose a slightly modified reduced order model in comparison to previous work and choose a different reachability Gramian. Based on this new approach, an\n                    <jats:inline-formula>\n                      <jats:alternatives>\n                        <jats:tex-math>$$L^2$$<\/jats:tex-math>\n                        <mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\">\n                          <mml:msup>\n                            <mml:mi>L<\/mml:mi>\n                            <mml:mn>2<\/mml:mn>\n                          <\/mml:msup>\n                        <\/mml:math>\n                      <\/jats:alternatives>\n                    <\/jats:inline-formula>\n                    -error bound is proved for SPA which is the main result of this paper. This bound is new even for deterministic bilinear systems.\n                  <\/jats:p>","DOI":"10.1007\/s00498-020-00257-9","type":"journal-article","created":{"date-parts":[[2020,5,25]],"date-time":"2020-05-25T10:02:52Z","timestamp":1590400972000},"page":"129-156","update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":8,"title":["A new type of singular perturbation approximation for stochastic bilinear systems"],"prefix":"10.1007","volume":"32","author":[{"given":"Martin","family":"Redmann","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"297","published-online":{"date-parts":[[2020,5,25]]},"reference":[{"key":"257_CR1","doi-asserted-by":"crossref","unstructured":"Al-Baiyat SA, Bettayeb M (1993) A new model reduction scheme for k\u2013power bilinear systems. 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