# Journal of the Ramanujan Mathematical Society

Volume 38, Issue 1, March 2023 pp. 47–56.

Some observations on the index of C{p}-spaces

**Authors**:
Bikramjit Kundu

**Author institution:**
Department of Mathematics, Ramakrishna Mission Vivekananda Educational and Research Institute, Belur Math, Howrah 711 202

**Summary: **
In this paper, we consider numerical indices associated to spaces with free C{p}-action.
We prove that the Stiefel manifolds provide an example of non-tidy spaces for
p=2, which are those whose co-index and index disagree. In the case of odd primes,
we construct examples of co-index 3 whose index may be arbitrarily large.

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