{"name": "非线性泛函分析", "children": [{"name": "LS临界值", "en": "LS critical value", "superfield": "数学"}, {"name": "LS临界点", "en": "LS critical point", "superfield": "数学"}, {"name": "[非线性]全连续算子", "en": "[non-linear] completely continuous operator", "superfield": "数学"}, {"name": "[非线性]弗雷德霍姆算子", "en": "[non-linear] Fredholm operator", "superfield": "数学"}, {"name": "[非线性]紧算子", "en": "[non-linear] compact operator", "superfield": "数学"}, {"name": "不动点定理", "en": "fixed point theorem", "superfield": "数学"}, {"name": "严格导数", "en": "strict derivative", "superfield": "数学"}, {"name": "临界点理论", "en": "critical point theory", "superfield": "数学"}, {"name": "乌雷松算子", "en": "Urysohn operator", "superfield": "数学"}, {"name": "保锥算子", "en": "cone-preserving operator", "superfield": "数学"}, {"name": "减算子", "en": "decreasing operator", "superfield": "数学"}, {"name": "凝聚映射", "en": "condensing mapping", "superfield": "数学"}, {"name": "凸算子", "en": "convex operator", "superfield": "数学"}, {"name": "凹算子", "en": "concave operator", "superfield": "数学"}, {"name": "分歧理论", "en": "bifurcation theory", "superfield": "数学"}, {"name": "切锥", "en": "tangent cone", "superfield": "数学"}, {"name": "利普希茨映射", "en": "Lipschitzian mapping", "superfield": "数学"}, {"name": "加托可微算子", "en": "", "superfield": "数学"}, {"name": "加托导数", "en": "", "superfield": "数学"}, {"name": "勒雷-绍德尔度", "en": "Leray-Schauder degree", "superfield": "数学"}]}