analysis and convex analysis, the Ursescu theorem is a theorem that generalizes the closed graph theorem, the open mapping theorem, and the uniform boundedness...

mapping theorem (complex analysis) – Theorem on holomorphic functions Surjection of Fréchet spaces – Characterization of surjectivity Ursescu theorem – Generalization...

linear operator to be open Ursescu theorem – Generalization of closed graph, open mapping, and uniform boundedness theorem Webbed space – Space where...

linear operator to be open Ursescu theorem – Generalization of closed graph, open mapping, and uniform boundedness theorem Webbed space – Space where...

of topological vector space Ursescu theorem – Generalization of closed graph, open mapping, and uniform boundedness theorem Shtern 2001. Rudin 1991, pp...

convex set-valued functions". Demonstratio Mathematica. 46 (4): 655–662. doi:10.1515/dema-2013-0483. Selection theorem Ursescu theorem Binary relation...

often used to prove the inverse function theorem on complete metric spaces such as Banach spaces. Theorem (C. Ursescu)—Let X {\displaystyle X} be a complete...

boundedness principle#Generalisations – Theorem stating that pointwise boundedness implies uniform boundedness Ursescu theorem – Generalization of closed graph...

are also useful for the statements of many theorems in convex functional analysis (such as the Ursescu theorem): i c A := { i A  if  aff ⁡ A  is a closed...

notion of uniform properties Ursescu theorem – Generalization of closed graph, open mapping, and uniform boundedness theorem In fact, this is true for topological...

Russo–Dye theorem describes the convex hulls of unitary elements in a C*-algebra. In discrete geometry, both Radon's theorem and Tverberg's theorem concern...

defined by a metric Open mapping theorem (functional analysis) – Condition for a linear operator to be open Ursescu theorem – Generalization of closed graph...

{cl} C\right)^{i}.} Ursescu theorem – Generalization of closed graph, open mapping, and uniform boundedness theorem Zălinescu 2002, pp. 1–23. Zălinescu...

However, in a complete metric space the following result does hold: Theorem (C. Ursescu)—Let S 1 , S 2 , … {\displaystyle S_{1},S_{2},\ldots } be a sequence...

43 (2): 439–442. doi:10.1090/S0002-9939-1974-0334132-8. ISSN 0002-9939. Ursescu, Corneliu (1975). "Multifunctions with convex closed graph". Czechoslovak...

However, in a complete metric space the following result does hold: Theorem (C. Ursescu)—Let S 1 , S 2 , … {\displaystyle S_{1},S_{2},\ldots } be a sequence...