Educational Studies in Mathematics, Vol. 73, No. 1 (Jan., 2010), pp. 3-19 (17 pages) This study is part of a project concerned with the analysis of how students work with two-variable functions. This ...
This is a preview. Log in through your library . Abstract In this paper we study strictly positive definite functions on the unit sphere of the m-dimensional Euclidean space. Such functions can be ...
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