. "34Kxx"^^ . . . . . . . . . . . "Functional-differential and differential-difference equations "@en . . "Functional-differential and differential-difference equations [See also 37-XX]"@en . "See also 37-XX." . . . . . . . . . . "\u6CDB\u51FD-\u5FAE\u5206\u4E0E\u5FAE\u5206-\u5DEE\u5206\u65B9\u7A0B"@zh . . . . . . . . . . . . . "\u6CDB\u51FD-\u5FAE\u5206\u4E0E\u5FAE\u5206-\u5DEE\u5206\u65B9\u7A0B[\u53C2\u89C137-XX]"@zh . . . . . . . . . . . .