2 citations · 8 across the 13 of their papers we have counts for
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math.CA2015
A remark on the trigonometric system
Alexander Kushpel
We present a new property of the trigonometric system arranged in a natural order. It is shown that the sequence of subspaces of trigonometric polynomials is optimal in the sense o…
math.CA2015
Lebesgue constants on compact manifolds
A. Kushpel
Sharp asymptotic for norms of Fourier projections on two-point homogeneous manifolds (the real sphere, the real, complex and quaternionic projective spaces and the Cayley elliptic…