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| Authors: | Cristiá n U. Sá nchez |
| Affiliation: | Fa. M.A.F., Universidad de Córdoba, Ciudad Universitaria, 5000, Córdoba, Argentina |
| Abstract: | M. Takeuchi proved the following nice result: The ``two-number' of a symmetric  -space is equal to the sum of the Betti numbers of the space with coefficients in  . In the present paper an extension of this result is given for general  -spaces. |
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