LACUNARY DISTRIBUTIONAL CONVERGENCE IN TOPOLOGICAL SPACES

Havva Uluçay, Mehmet Ünver

Abstract


Most of the summability methods cannot be defined in an arbitrary Hausdorff topological space unless one introduces a linear or a group structure. In the present paper, using distribution functions over the Borel $\sigma $-field of the topology and lacunary sequences we define a new type of convergence method in an
arbitrary Hausdorff topological space and we study some inclusion theorems
with respect to the resulting summability method. We also investigate the
inclusion relation between lacunary sequence and lacunary refinement of it.


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