Contents of Volume 256
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Quantum symmetry of graph $C^{\ast }$-algebras at critical inverse temperature Studia Mathematica 256 (2021), 1-20 MSC: 46L30, 46L67, 46L89. DOI: 10.4064/sm190102-30-9
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Contractive projections and real positive maps on operator algebras Studia Mathematica 256 (2021), 21-60 MSC: Primary 17C65, 46L05, 46L70, 47L05, 47L07, 47L30, 47L70; Secondary 46H10, 46B40, 46L07, 46L30, 47L75. DOI: 10.4064/sm190614-7-11
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The structure of Schmidt subspaces of Hankel operators: a short proof Studia Mathematica 256 (2021), 61-71 MSC: 47B35, 30H10. DOI: 10.4064/sm190717-7-2
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Normal operators with highly incompatible off-diagonal corners Studia Mathematica 256 (2021), 73-92 MSC: Primary 47B15, 15A60; Secondary 15A83. DOI: 10.4064/sm190819-13-2
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On the unitary group of the multiplier algebra of the Razak algebra Studia Mathematica 256 (2021), 93-107 MSC: Primary 46L80, 47A10, 47A53. DOI: 10.4064/sm190824-29-11
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Projecting onto Helson matrices in Schatten classes Studia Mathematica 256 (2021), 109-119 MSC: Primary 47B35; Secondary 47B10. DOI: 10.4064/sm190901-24-3
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Zero-dimensional extensions of amenable group actions Studia Mathematica 256 (2021), 121-145 MSC: Primary 37A35; Secondary 37B40. DOI: 10.4064/sm190203-5-11
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Extending the scope of the small-ball method Studia Mathematica 256 (2021), 147-167 MSC: Primary 60G99. DOI: 10.4064/sm190420-21-11
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Coactions of a finite-dimensional $C^*$-Hopf algebra on unital $C^*$-algebras, unital inclusions of unital $C^*$-algebras and strong Morita equivalence Studia Mathematica 256 (2021), 169-185 MSC: Primary 46L05; Secondary 46L08. DOI: 10.4064/sm190424-5-1
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Isolated point theorems for uniform algebras on smooth manifolds Studia Mathematica 256 (2021), 187-196 MSC: 32E30, 46J10. DOI: 10.4064/sm190513-5-1
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Finite sums of dual Toeplitz products Studia Mathematica 256 (2021), 197-215 MSC: Primary 47B35; Secondary 32A37. DOI: 10.4064/sm190724-17-12
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The Fourier–Stieltjes algebra of a $C^*$-dynamical system II Studia Mathematica 256 (2021), 217-239 MSC: Primary 46L55; Secondary 37A55, 43A35, 46H25. DOI: 10.4064/sm190826-25-3
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Higher-order Stein kernels for Gaussian approximation Studia Mathematica 256 (2021), 241-258 MSC: Primary 60F05; Secondary 60E15, 26D10, 94A17. DOI: 10.4064/sm190415-28-10
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The product Stein–Weiss theorem Studia Mathematica 256 (2021), 259-309 MSC: Primary 42B35. DOI: 10.4064/sm190708-24-1
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Hermitian and algebraic $^*$-algebras, representable extensions of positive functionals Studia Mathematica 256 (2021), 311-343 MSC: Primary 46L30, 46H10; Secondary 43A20, 46L05, 46L35, 47L40. DOI: 10.4064/sm190722-11-12
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On the $c_0$-extension property Studia Mathematica 256 (2021), 345-359 MSC: Primary 46B26, 46E15; Secondary 03E35, 54G12. DOI: 10.4064/sm191218-24-5
