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| \  / || | || | ||  / ____||   / _ \\   \ \\/ // 
|  \/  || | || | || / //---`'  | / \ ||   \   //  
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|_|\/|_||  \____//   \_____||   \___//   /_//\_\\ 
`-`  `-`    `---`     `----`    `---`    `-`  --`

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Text this: H∞ control for linear descriptor systems with non-differentiable delays in both state and observation