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- W4313483602 abstract "We investigate the regional gradient observability of fractional sub-diffusion equations involving the Caputo derivative. The problem consists of describing a method to find and recover the initial gradient vector in the desired region, which is contained in the spacial domain. After giving necessary notions and definitions, we prove some useful characterizations for exact and approximate regional gradient observability. An example of a fractional system that is not (globally) gradient observable but it is regionally gradient observable is given, showing the importance of regional analysis. Our characterization of the notion of regional gradient observability is given for two types of strategic sensors. The recovery of the initial gradient is carried out using an expansion of the Hilbert Uniqueness Method. Two illustrative examples are given to show the application of the developed approach. The numerical simulations confirm that the proposed algorithm is effective in terms of the reconstruction error." @default.
- W4313483602 created "2023-01-06" @default.
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- W4313483602 date "2022-12-31" @default.
- W4313483602 modified "2023-09-26" @default.
- W4313483602 title "Regional Gradient Observability for Fractional Differential Equations with Caputo Time-Fractional Derivatives" @default.
- W4313483602 doi "https://doi.org/10.48550/arxiv.2301.00238" @default.
- W4313483602 hasPublicationYear "2022" @default.
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