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ANALYTIC AND ALGEBRAIC INDICES OF ELLIPTIC OPERATORS ASSOCIATED WITH DISCRETE GROUPS OF QUANTIZED CANONICAL TRANSFORMATIONS Статья Savin A., Schrohe E. Journal of Functional Analysis. Academic Press Inc.. Том 278. 2020.
ELLIPTIC OPERATORS ASSOCIATED WITH GROUPS OF QUANTIZED CANONICAL TRANSFORMATIONS Статья Savin A., Schrohe E., Sternin B. Материалы "8th International conference on Differential and Functional Differential Equa-tions", August 13-20. Изд-во РУДН. 2017. С. 154-155