Applications of Lax-Milgram theorem to problems in frame theory
نویسندگان
چکیده
We apply Lax-Milgram theorem to characterize scalable and piecewise frame in finite infinite-dimensional Hilbert spaces. also introduce a method for approximating the inverse operator using finite-dimensional linear algebra which, best of our knowledge, is new literature.
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ژورنال
عنوان ژورنال: Sampling theory, signal processing, and data analysis
سال: 2023
ISSN: ['2730-5724', '1530-6429', '2730-5716']
DOI: https://doi.org/10.1007/s43670-023-00058-6