<正>In the present paper,we discuss some properties of piecewise linear spec- tral sequences introduced by Liu and Xu.We have a study on the pointwiso and almos
<正>In this paper, we prove Lp-boundedness of hyperbolic singular integral operators for kernels satisfying weakened regularity conditions, where 1<p<∞. This e
<正>In this paper, we use the well known KKM type theorem for generalized convex spaces due to Park (Elements of the KKM theory for generalized convex spaces, K