Geodesic
Commuting Differential Operators of Rank 2 with Polynomial Coefficients
Funkcionalʹnyj analiz i ego priloženiâ, Tome 50 (2016) no. 1, pp. 67-75.

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Self-adjoint commuting differential operators with polynomial coefficients are considered. These operators form a commutative subalgebra of the first Weyl algebra. New examples of commuting differential operators of rank $2$ are found.
Keywords: differential operator, first Weyl algebra, Krichever–Novikov equation, Dixmier hypothesis, nonlinear equation, operator of nontrivial rank. 
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V. S. Oganesyan. Commuting Differential Operators of Rank 2 with Polynomial Coefficients. Funkcionalʹnyj analiz i ego priloženiâ, Tome 50 (2016) no. 1, pp. 67-75. http://geodesic.mathdoc.fr/item/FAA_2016_50_1_a5/

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