Results 11 to 20 of about 902,430 (282)

Semicontinuity of the Automorphism Groups of Domains with Rough Boundary [PDF]

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2012
Based on some ideas of Greene and Krantz, we study the semicontinuity of automorphism groups of domains in one and several complex variables. We show that semicontinuity fails for domains in , , with Lipschitz boundary, but it holds for domains in with ...
Steven G. Krantz
doaj   +4 more sources

Rough ends of infinite primitive permutation groups [PDF]

open access: yesjgth, 2012
Abstract. If is a group of permutations of a set , then the suborbits of  are the orbits of point-stabilizers acting on . The cardinalities of these suborbits are the subdegrees of . Every infinite primitive permutation group with finite subdegrees acts faithfully as a group of automorphisms of a locally-finite connected vertex ...
Adeleke S. A.   +4 more
core   +6 more sources

Shared Rough and Quasi-Isometries of Groups [PDF]

open access: yes, 2010
We present a variation of quasi-isometry to approach the problem of defining a geometric notion equivalent to commensurability. In short, this variation can be summarized as "quasi-isometry with uniform parameters for a large enough family of generating systems".
Lochmann, Andreas
openaire   +3 more sources

Roughness in Fuzzy Cayley Graphs

open access: yesҚарағанды университетінің хабаршысы. Математика сериясы, 2023
Rough set theory is a worth noticing approach for inexact and uncertain system modelling. When rough set theory accompanies with fuzzy set theory, which both are a complementary generalization of set theory, they will be attended by potency in ...
M.H. Shahzamanian, B. Davvaz
doaj   +1 more source

A Study on Soft Multi-Granulation Rough Sets and Their Applications

open access: yesIEEE Access, 2022
Rough set (RS) and soft set (SS) theories are two successful mathematical approaches to dealing with uncertainty in data analysis. The classical soft rough set (SRS) theory proposed by Feng et al.
Saba Ayub   +4 more
doaj   +1 more source

THE IMPLEMENTATION OF A ROUGH SET OF PROJECTIVE MODULE

open access: yesBarekeng, 2023
In ring and module theory, one concept is the projective module. A module is said to be projective if it is a direct sum of independent modules. (U, R)  is an approximation space with non-empty set  and equivalence relation   If X subset U, we can form
Gusti Ayu Dwiyanti   +2 more
doaj   +1 more source

Rough Groups over Rough Sets

open access: yesTürk Doğa ve Fen Dergisi, 2023
In this study the rough algebraic structure especially on rough group is focused. The author make over the inadequate definition of rough group of an approximation space. Here, the rough groups over the rough sets is defined, in the sense of Pawlak's rough sets. Later, the structure of rough groups is given.
openaire   +2 more sources

Computing fuzzy rough approximations in large scale information systems [PDF]

open access: yes, 2014
Rough set theory is a popular and powerful machine learning tool. It is especially suitable for dealing with information systems that exhibit inconsistencies, i.e. objects that have the same values for the conditional attributes but a different value for
Asfoor, Hasan   +7 more
core   +1 more source

Some topological properties of topological rough groups [PDF]

open access: yesSoft Computing, 2021
19 ...
Lin, Fucai   +3 more
openaire   +2 more sources

Cleanup Sketched Drawings: Deep Learning-Based Model

open access: yesApplied Bionics and Biomechanics, 2022
Rough drawings provide artists with a simple and efficient way to express shapes and ideas. Artists frequently use sketches to highlight their envisioned curves, using several groups’ raw strokes.
Amal Ahmed Hasan Mohammed, Jiazhou Chen
doaj   +1 more source

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