On GCD-morphic sequences

This note is a response to one of the problems posed by Kwa'sniewski in [1,2], see also [3] i.e. GCD-morphic Problem III. We show that any GCD-morphic sequence $F$ is at the point product of primary GCD-morphic sequences and any GCD-morphic sequence is encoded by natural number valued sequence satisfying condition (C1). The problem of general importance - for example in number theory was formulated in [1,2] while investigating a new class of DAG’s and their correspondent p.o. sets encoded uniquely by sequences with combinatorially interpretable properties.

💡 Research Summary

The paper addresses “GCD‑morphic Problem III” originally posed by Kwaśniewski, which asks for effective characterizations and constructive methods for sequences (F={F_n}_{n\ge0}) satisfying the GCD‑morphic property
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