Pretopologies and dynamic spaces
Fundamenta Informaticae - Special issue on the 9th international conference on rough sets, fuzzy sets, data mining and granular computing (RSFDGrC 2003)
Esoteric rough set theory: algebraic semantics of a generalized VPRS and VPFRS
Transactions on rough sets VIII
Choice inclusive general rough semantics
Information Sciences: an International Journal
Dialectics of counting and the mathematics of vagueness
Transactions on Rough Sets XV
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We introduce the concept of a synchronal approximation space (SA) and a AUAI-multiple approximation space and show that they are essentially equivalent to an AUAI rough system. Through this we have estabilished connections between general cover based systems, dynamic spaces and generalized approximation spaces (APS) for easier algebraic semantics. AUAI-rough set theory (RST) is also extended to accommodate local determination of universes. The results obtained are also significant in the representation theory of general granular RST, for the problems of multi source RST and Ramsey-type combinatorics.