Russian Mathematical Surveys · 1977 · 109 citations · 28 references
Natural SciencesMathematicsDifferential EquationsExistence TheoremsExistence TheoryOperator TheoryPartial Differential EquationsSystems Of Differential EquationsFredholm MapsFredholm OperatorsFredholm TheoryLeray-schauder DegreeLocal Existence TheoryLocal Invertibility
ContentsIntroduction § 1. Banach manifolds and their maps § 2. The degree of a Fredholm map § 3. Equivariant Fredholm maps § 4. Solubility of equations with Fredholm operators § 5. Some applications to existence theorems for differential equations § 6. Complete and local invertibility of proper maps § 7. Intersection indicesReferences
28
Shmuel Agmon, Avron Douglis, Louis Nirenberg · Communications on Pure and Applied Mathematics · 1959 · 3.8K citations
Natural Sciences, Mechanical Engineering, Differential Equations +10
Shmuel Agmon, Avron Douglis, Louis Nirenberg · Communications on Pure and Applied Mathematics · 1964 · 1.3K citations
Natural Sciences, Mechanical Engineering, Differential Equations +11
Generalized gradients and applications
Frank H. Clarke · Transactions of the American Mathematical Society · 1975 · 1.2K citations