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// Zapiski Nauchnykh Seminarov POMI
// Archive
2023, Volume 527
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General information
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Contents
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Investigations on linear operators and function theory. Part 51
Some extremal problems for martingale transforms. I
V. I. Vasyunin, P. B. Zatitskii
5
Reverse Carleson measures for Hardy spaces in the unit ball
E. Doubtsov
54
Paltanea type theorems on estimation by positive discrete functionals
L. N. Ikhsanov
71
Partial retractions for abstract Hardy-type spaces
S. V. Kislyakov
84
On an asymptotic expansion of the characteristic determinant for
$2 \times 2$
Dirac type systems
A. A. Lunev, M. M. Malamud
94
To the bicommutant theorem for algebras generated by symmetries of finite point sets in
$\mathbb{R}^3$
V. V. Marchenko
137
Variations of the Bourgain method for
$\mathrm{K}$
-closedness of certain subcouples
D. V. Rutsky
155
B. Ya. Levin function for some sets of segments
O. V. Silvanovich, N. A. Shirokov
183
Inverse theorem for approximation on subsets of a domain with cups
K. À. Sintsova
204
Ahlfors-type theorem for Hausdorff measures
A. A. Florinskii, K. A. Fofanov, N. A. Shirokov
221
Polynomial approximation by doubly periodic Weierstrass functions on disjoint segments in the
$L^P$
metric
M. A. Shagay, N. A. Shirokov
242
©
Steklov Math. Inst. of RAS
, 2025