Results 21 to 30 of about 19,304,813 (283)

Some properties of maximal open sets [PDF]

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2003
Some fundamental properties of maximal open sets are obtained, such as decomposition theorem for a maximal open set. Basic properties of intersections of maximal open sets are established, such as the law of radical closure.
Fumie Nakaoka, Nobuyuki Oda
doaj   +2 more sources

Asymmetric maximal and minimal open sets [PDF]

open access: yesMathematica Moravica, 2016
We introduce the notions of maximal and minimal open sets in bitopological spaces and obtain some properties of them. In contrary to maximal and minimal open sets in topological spaces, we observe that maximal and minimal open sets in bitopological ...
Mukharjee Ajoy   +2 more
doaj   +2 more sources

Semi Generalized Open Sets and Generalized Semi Closed Sets in Topological Spaces [PDF]

open access: yesInternational Journal of Analysis and Applications, 2020
In this paper we introduce a new class of semi generalized open sets, generalized semi closed sets in topological spaces, and studied some of its basic properties.
Abdelgabar Adam Hassan
doaj   +1 more source

A Survey on Open Set Recognition [PDF]

open access: yes2021 IEEE Fourth International Conference on Artificial Intelligence and Knowledge Engineering (AIKE), 2021
Open Set Recognition (OSR) is about dealing with unknown situations that were not learned by the models during training. In this paper, we provide a survey of existing works about OSR and distinguish their respective advantages and disadvantages to help out new researchers interested in the subject.
Atefeh Mahdavi, Marco Carvalho 0001
openaire   +3 more sources

On ?-semi-open sets

open access: yes, 2005
We introduce the concepts of ?-semi-open set, ? s- set, ? s-set, generalized ? s-set, generalized ? s-set, semi-T 1 ?space and semi-R 0 ?space by using ?-open-sets.
Guldurdek, A   +5 more
core   +3 more sources

Open-Set Adversarial Defense [PDF]

open access: yes, 2020
Accepted by ECCV ...
Rui Shao 0001   +3 more
openaire   +3 more sources

On minimal λco-open sets

open access: yes, 2020
We introduce and discuss the notions of minimal λco-open sets in topological spaces. We establish some of it basic fundamental properties of minimal λco-open.
ROSAS, ENNIS   +4 more
core   +2 more sources

Cohomology of open sets

open access: yesCoRR, 2023
If G is a finite abstract simplicial complex and K is a subcomplex of G and U=G-K is the open complement of K in G, the Betti vectors of K and U and G satisfy the inequality b(G) less or equal b(K)+b(U).
openaire   +2 more sources

Nano βθ-Open Sets in Nano Topological Spaces

open access: yesTikrit Journal of Pure Science, 2023
This paper's primary objective is to present and study a different class of nano sets known as nano βθ-open sets in nano topological spaces. Additionally, introduced some nano topological concepts by using nano βθ-open set.
Rzgar U. Ahmad, Sami A. Hussein
doaj   +1 more source

Intersection of Open Sets in the Reals

open access: yes, 2023
We demonstrate that while the intersection of a finite number of open sets in $\mathbb R$ remains open in $\mathbb R$, the same cannot be universally said for intersections involving an infinite number of open sets.
Matheus Pereira Lobo
core   +1 more source

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