Vol. 15 No. 3 (2024)

Articles

• Invariant Subspaces in Non-Quasianalytic Spaces of \( \Omega \)-Ultradifferentiable Functions on an Interval

  Natalia Abuzyarova, Ziganur Fazullin

  09-24

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• Optimal cubature formulas for Morrey type function classes on multidimensional torus

  Sholpan Balgimbayeva, Daurenbek Bazarkhanov

  25-37

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• Weak version of symmetric space

  Turdebek Bekjan

  38–45

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• Symmetry groups of pfaffians of symmetric matrices

  Askar Dzhumadil'daev

  46–54

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• The spectrum and principal functions of a nonself-adjoint Sturm–Liouville operator with discontinuity conditions

  Nida Palamut Kosar, Ozge Akcay

  55–67

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• Barrier composed of perforated resonators and boundary conditions

  Igor Popov, Ekaterina Trifanova, Alexander Bagmutov, Irina Blinova

  68–76

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• Weaving frames linked with fractal convolutions

  Geetika Verma, Andrew Eberhard

  77–87

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• Kolmogorov widths of anisotropic function classes and finite-dimensional balls

  Anastasia Vasil’eva

  88–93

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