Combined Algebraic Properties of IP* and Central* Sets Near 0

It is known that for an IP* set A in ℕ and a sequence 〈xn〉n=1∞ there exists a sum subsystem 〈yn〉n=1∞ of 〈xn〉n=1∞ such that FS(〈yn〉n=1∞)  ∪  FP(〈yn〉n=1∞)⊆A. Similar types of results also have been proved for central* sets. In this present work we will extend the results for dense subsemigroups of ((0...

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Bibliographic Details
Main Authors: Dibyendu De, Ram Krishna Paul
Format: Article
Language:English
Published: Wiley 2012-01-01
Series:International Journal of Mathematics and Mathematical Sciences
Online Access:http://dx.doi.org/10.1155/2012/830718
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