Korovkin tests, approximation, and ergodic theory
نویسندگان
چکیده
منابع مشابه
Korovkin tests, approximation, and ergodic theory
We consider sequences of s · k(n)× t · k(n) matrices {An(f)} with a block structure spectrally distributed as an L1 p-variate s× t matrix-valued function f , and, for any n, we suppose that An(·) is a linear and positive operator. For every fixed n we approximate the matrix An(f) in a suitable linear space Mn of s · k(n) × t · k(n) matrices by minimizing the Frobenius norm of An(f)−Xn when Xn r...
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ژورنال
عنوان ژورنال: Mathematics of Computation
سال: 2000
ISSN: 0025-5718
DOI: 10.1090/s0025-5718-00-01217-5