. . . "Differential geometry"@en . . "Differential geometry {For differential topology see 57Rxx. For foundational questions of differentiable manifolds, see 58Axx}"@en . . . . . . . . . . . "For differential topology, see 57Rxx. For foundational questions of differentiable manifolds, see 58Axx." . . . . . . "\u5FAE\u5206\u51E0\u4F55(\u5FAE\u5206\u62D3\u6251, \u89C157Rxx; \u53EF\u5FAE\u6D41\u5F62\u7684\u57FA\u7840\u95EE\u9898, \u89C158Axx)"@zh . "53-XX"^^ . . .