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On the total torsion of certain nonclosed sphere curves

Published online by Cambridge University Press:  17 April 2009

Stephen M. Zemyan
Affiliation:
Department of Mathematics, The Pennsylvania State University, Mont Alto Campus, Mont Alto, Pennsylvania 17237, United States of America.
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Abstract

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In this note, we establish some results concerning the total torsion and the total absolute torsion of certain non-closed stereographically projected analytic curves. The method of proof involves only elementary techniques of integration, a periodicity argument and Liouville's Theorem.

Type
Research Article
Copyright
Copyright © Australian Mathematical Society 1987

References

[1]Fenchel, Werner, “The differential geometry of closed space curves”, Bull. Amer. Math. Soc. 57 (1951), 4454.CrossRefGoogle Scholar
[2]Millman, Richard S. and Parker, George D., Elements of Differential Geometry, (Prentice-Hall, Inc., Englewood Cliffs, New Jersey 07632, 1977).Google Scholar
[3]Penna, Michael A., “Total torsion”, Amer. Math. Monthly 87 (1980), 452461.CrossRefGoogle Scholar
[4]Santaló, Luis A., “Sobre unas propiedades caracteristicas de la esfera”, Univ. Nac. Tucumán Rev. Ser. A. 14 (1962), 287297.Google Scholar
[5]Scherrer, W., “Eine Kennzeichnung der Kugel”, Vierteljschr. Naturforsch. Ges. Zürich, 85 (1940), 4046.Google Scholar
[6]Segre, B., “Sulla torsione integrale delle curve chuise sghembe”, Attai. Acad. Naz. Lincei Rend. Cl. Sci. Fis. Mat. Nat. (8) 3 (1947), 422426.Google Scholar