The Cauchy Problem for Complete Second-Order Hyperbol ic Differential Equations with Variable Domains of Operator Coefficients
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چکیده
Complete second-order hyperbolic differential equations with constant domains of operator coefficients were investigated in [1, 2]. In the case of variable domains of operator coefficients, second-order hyperbolic differential equations with a two-term leading part were analyzed in [3-5]. In the present paper, we investigate second-order hyperbolic differential equations with a three-term leading part in the case of variable domains of operator coefficients.
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