Proceedings of the Indian Academy of Sciences - Section A

, Volume 65, Issue 5, pp 270–282

Note on the locally product and almost locally product structures

  • Muppinaiya Nagaraj

DOI: 10.1007/BF03049534

Cite this article as:
Nagaraj, M. Proc. Indian Acad. Sci. (1967) 65: 270. doi:10.1007/BF03049534


This paper is concerned with a study of some of the properties of locally product and almost locally product structures on a differentiable manifold Xn of class Ck. Every locally product space has certain almost locally product structures which transform the local tangent space to Xn at an arbitrary point P in a set fashion: this is studied in Theorem (2.2). Theorem (2.3) considers the nature of transformations that exist between two co-ordinate systems at a point whenever an almost locally product structure has the same local representation in each of these co-ordinate systems. A necessary and sufficient condition for Xn to be a locally product manifold is obtained in terms of the pseudo-group of co-ordinate transformations on Xn and the subpseudo-groups [cf., Theoren (2.1)]. Section 3 is entirely devoted to the study of integrable almost locally product structures.

Copyright information

© Indian Academy of Sciences 1967

Authors and Affiliations

  • Muppinaiya Nagaraj
    • 1
  1. 1.Department of Applied MathematicsIndian Institute of ScienceBangalore