Kuzenko S.M., Lindstrom U., Raptakis E.S.N., Tartaglino-Mazzucchelli G., “Symmetries of N = (1,0) Supergravity Backgrounds in Six Dimensions”, J. High Energy Phys., 2021, no. 3, 157
И. В. Широков, “Тождества и инвариантные операторы на однородных пространствах”, ТМФ, 126:3 (2001), 393–408 ; I. V. Shirokov, “Identities and Invariant Operators on Homogeneous Spaces”, Theoret. and Math. Phys., 126:3 (2001), 326–338
I. V. Shirokov, “Local symmetries of massless wave equations”, Russ Phys J, 41:5 (1998), 414
А. В. Шаповалов, И. В. Широков, “Некоммутативное интегрирование линейных дифференциальных уравнений”, ТМФ, 104:2 (1995), 195–213 ; A. V. Shapovalov, I. V. Shirokov, “Noncommutative integration of linear differential equations”, Theoret. and Math. Phys., 104:2 (1995), 921–934
O. L. Varaksin, “Quadratic algebras in the method of noncommutative integration of the wave equation”, Russ Phys J, 38:8 (1995), 778
V. V. Firstov, I. V. Shirokov, “Classification of quadratic symmetry algebras of the Schr�dinger equation”, Russ Phys J, 38:8 (1995), 772
А. В. Шаповалов, И. В. Широков, “Об алгебре симметрии линейного дифференциального уравнения”, ТМФ, 92:1 (1992), 3–12 ; A. V. Shapovalov, I. V. Shirokov, “Symmetry algebras of linear differential equations”, Theoret. and Math. Phys., 92:1 (1992), 697–703
V. G. Bagrov, A. V. Shapovalov, I. V. Shirokov, “Enveloping algebra identities on solutions of conformally invariant wave equations”, Soviet Physics Journal, 34:9 (1991), 751
V. G. Bagrov, B. F. Samsonov, A. V. Shapovalov, “Separation of variables in the wave equation. Sets of the type (1.1) and Schr�dinger equation”, Soviet Physics Journal, 34:2 (1991), 122
V. G. Bagrov, B. V. Samsonov, A. V. Shapovalov, “Separation of variables in the wave equation. Sets of the type (1.1) and the algebra SU(1.2)”, Soviet Physics Journal, 34:2 (1991), 168