Invariant subspaces of commutative families of operators in a space with an indefinite metric
English version (Springer): Ukrainian Mathematical Journal 28 (1976), no. 3, pp 229-233.
Citation Example: Azizov T. Ya. Invariant subspaces of commutative families of operators in a space with an indefinite metric // Ukr. Mat. Zh. - 1976. - 28, № 3. - pp. 293–299.
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