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Citation: “Chapter 4. Linear operators”, Investigations on linear operators and function theory, 99 unsolved problems in linear and complex analysis, Zap. Nauchn. Sem. LOMI, 81, "Nauka", Leningrad. Otdel., Leningrad, 1978, 75–76

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Chapter

• Chapter 4. Linear operators
  Zap. Nauchn. Sem. LOMI, 1978, 81, 75–76
• 1.4. Is a uniform algebraic approximation of the multiplication and shift operators possible?
  A. M. Vershik
  Zap. Nauchn. Sem. LOMI, 1978, 81, 77–81
• 2.4. Operators, analytic begligibility, and capacities
  C. R. Putnam
  Zap. Nauchn. Sem. LOMI, 1978, 81, 82–84
• 3.4. Null sets of operator functions with positive imaginary part
  B. S. Pavlov, L. D. Faddeev
  Zap. Nauchn. Sem. LOMI, 1978, 81, 85–88
• 4.4. A question of polynomial approximation arising in connection with the lacunae of the spectrum of Hill's equation
  H. P. McKean
  Zap. Nauchn. Sem. LOMI, 1978, 81, 89–91
• 5.4. Titchmarsh's theorem for vector functions
  H. Helson
  Zap. Nauchn. Sem. LOMI, 1978, 81, 92–93
• 6.4. Operators and approximation
  N. K. Nikol'skii
  Zap. Nauchn. Sem. LOMI, 1978, 81, 94–95
• 7.4. Spectral decomposition and the Carleson condition
  V. I. Vasyunin, N. K. Nikol'skii, B. S. Pavlov
  Zap. Nauchn. Sem. LOMI, 1978, 81, 96–98
• 8.4. A problem on operator valued bounded analytic functions
  B. Szőkefalvi-Nagy
  Zap. Nauchn. Sem. LOMI, 1978, 81, 99
• 9.4. The similarity problem and the structure of the singular spectrum of a nondissipative operator
  S. N. Naboko
  Zap. Nauchn. Sem. LOMI, 1978, 81, 100–102
• 10.4. Factorization of operators in $L^2(a,b)$
  L. A. Sakhnovich
  Zap. Nauchn. Sem. LOMI, 1978, 81, 103–106
• 11.4. A similarity problem for Toeplitz operators
  D. N. Clark
  Zap. Nauchn. Sem. LOMI, 1978, 81, 107–108
• 12.4. Localization of Toeplitz operators
  R. G. Douglas
  Zap. Nauchn. Sem. LOMI, 1978, 81, 109–111
• 13.4. Factorization of operator functions (classification of holomorphic Hilbert space bundles over the Riemannian sphere)
  J. Leiterer
  Zap. Nauchn. Sem. LOMI, 1978, 81, 112–114
• 14.4. Estimation of operator polynomials in Schatten–von Neumann classes
  V. V. Peller
  Zap. Nauchn. Sem. LOMI, 1978, 81, 115–117
• 15.4. The decomposition of Riesz operators
  M. R. Smyth, T. T. West
  Zap. Nauchn. Sem. LOMI, 1978, 81, 118

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