Motions with maximal displacements

Commentarii Mathematici Helvetici - Tập 28 - Trang 1-8 - 1954
Herbert Busemann1
1Los Angeles

Tài liệu tham khảo

H. Busemann, Localmetric geometry, Trans. Am. Math. Soc. 56 (1944) pp. 200–274. H. Busemann, Spaces with non-positive curvature, Acta Math. 80 (1948) pp. 259–310. K. Menger, Untersuchungen über allgemeine Metrik I, II, III, Math. Ann. 100 (1928), pp. 75–163. L. Pontrjagin, Topological groups, Princeton 1939 D. Montgomery andL. Zippin, Topological transformation groups, Ann. Math. 41 (1940) pp. 778–791. E. Hopf, Closed surfaces without conjugate points, Proc. Nat. Acad. Sci. U.S.A. 34 (1948), pp. 47–51. H. Busemann, Metric methods in Finsler spaces and in the foundations of geometry, Am. Math. Study No 8, Princeton 1942. H. Seifert und W. Threlfall, Lehrbuch der Topologie, Leipzig 1934.