In this paper, a general framework for the study of dual fuzzy rough approximation operators
determined by a fuzzy implication operator I in infinite universes of discourse is investigated …

Axiomatic characterizations of approximation operators are of importance in the study of
rough set theory. In this paper axiomatic characterizations of relation-based (S, T)-fuzzy …

In this paper axiomatic characterizations of relation-based intuitionistic fuzzy rough
approximation operators determined by an intuitionistic fuzzy triangular norm T and its dual …

Axiomatic characterizations of approximation operators are important in the study of rough
set theory. In this paper, axiomatic characterizations of relation-based fuzzy rough …

The aim of the paper is to clarify mathematical relationship among three types of rough
approximation pairs. We propose subsystem-based definition of generalized rough sets and …

In this paper, we propose two variations of rough approximable concepts and investigate the
order-theoretic properties of the associated concept hierarchies. We first show that every …

This paper studies expansions of bounded distributive lattices equipped with a Galois
connection. We introduce GC-frames and canonical frames for these algebras. The complex …

A normal subgroup of a group can partition a group into equivalence classes. Therefore,
approximations can be constructed within a group. The near approximations in a group are …

TL-Fuzzy Set Valued Homomorphisms and Generalized (I,T)-L-Fuzzy Rough Sets on Groups
Page 1 Filomat 31:13 (2017), 4153–4166 https://doi.org/10.2298/FIL1713153E Published by …

The initiation and majority on rough sets for algebraic hyperstructures such as
hypermodules over a hyperring have been concentrated on a congruence relation. The …