Suszycki, A. Retracts and homotopies for multi-maps. (English) Zbl 0529.55013 Fundam. Math. 115, 9-26 (1983). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Cited in 3 ReviewsCited in 4 Documents MSC: 55P55 Shape theory 54C55 Absolute neighborhood extensor, absolute extensor, absolute neighborhood retract (ANR), absolute retract spaces (general properties) 54C56 Shape theory in general topology Keywords:upper semi-continuous multi-functions on compacta with values of trivial shape; multi-retracts; multi-homotopies; multi-homotopy groups; ANR; shape group PDFBibTeX XMLCite \textit{A. Suszycki}, Fundam. Math. 115, 9--26 (1983; Zbl 0529.55013) Full Text: DOI EuDML