On the uniqueness of the topological degree for k-set-contractions

DOI10.1007/BF01213930zbMath0268.55009OpenAlexW2093091310MaRDI QIDQ758769

Roger D. Nussbaum

Publication date: 1974

Published in: Mathematische Zeitschrift (Search for Journal in Brave)

Full work available at URL: https://eudml.org/doc/172052

Mathematics Subject Classification ID

Degree, winding number (55M25) Fixed points and coincidences in algebraic topology (55M20) Absolute neighborhood retracts (55M15)

Related Items

Condensing operators ⋮ 16.—On Uniqueness of Topological Degree for Set-valued Mappings ⋮ Fixed point theory and nonlinear problems

Cites Work

• Periodic solutions of some nonlinear, autonomous functional differential equations. II
• An elementary proof of the uniqueness of the fixed point index
• The fixed point index for local condensing maps
• Degree theory for local condensing maps
• On the uniqueness of the topological degree
• An extension of Tietze's theorem
• Essential Sets and Fixed Points