Munkres, J. Obstructions to the smoothing of piecewise-differentiable homeomorphisms. (English) Zbl 0108.18101 Ann. Math. (2) 72, 521-554 (1960). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Cited in 2 ReviewsCited in 85 Documents MathOverflow Questions: Classification of surfaces and the TOP, DIFF and PL categories for manifolds Keywords:topology PDF BibTeX XML Cite \textit{J. Munkres}, Ann. Math. (2) 72, 521--554 (1960; Zbl 0108.18101) Full Text: DOI Euclid OpenURL