Lacunary I-convergence in probabilistic n-normed space

In this article using the concept of ideal and lacunary sequence we introduce the concept of lacunary I-convergent, lacunary I  -Cauchy and lacunary I∗I∗-convergent sequences in probabilistic n-normed space.We obtain some results related to these concepts. Also the concept of lacunary refinement of a lacunary sequence is discussed in probabilistic n-normed space.