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- W3089788132 abstract "In this article, we propose two new iterative algorithms to solve the frequency-limited Riemannian optimization model order reduction problems of linear and bilinear systems. Different from the existing Riemannian optimization methods, we design a new Riemannian conjugate gradient scheme based on the Riemannian geometry notions on a product manifold, and then generate a new search direction. Theoretical analysis shows that the resulting search direction is always descent with depending neither on the line search used, nor on the convexity of the cost function. The proposed algorithms are also suitable for generating reduced systems over a frequency interval in bandpass form. Finally, two numerical examples are simulated to demonstrate the efficiency of our algorithms." @default.
- W3089788132 created "2020-10-08" @default.
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- W3089788132 date "2021-09-01" @default.
- W3089788132 modified "2023-10-18" @default.
- W3089788132 title "Frequency-Limited Reduced Models for Linear and Bilinear Systems on the Riemannian Manifold" @default.
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- W3089788132 doi "https://doi.org/10.1109/tac.2020.3027643" @default.
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