Additive and Multiplicative Structures of C ? - Sets
نویسنده
چکیده
It is known that for an IP? set A in (N,+) and a sequence hxnin=1 in N, there exists a sum subsystem hynin=1 of hxnin=1 such that FS(hynin=1) [ FP (hynin=1) ✓ A. Similar types of results have also been proved for central? sets where the sequences have been considered from the class of minimal sequences. In this present work, we shall prove some analogous results for C?-sets for a more general class of sequences.
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