Results 1 to 10 of about 12,889 (115)

On the Menger and almost Menger properties in locales

Applied General Topology, 2021
The Menger and the almost Menger properties are extended to locales. Regarding the former, the extension is conservative (meaning that a space is Menger if and only if it is Menger as a locale), and the latter is conservative for sober TD-spaces.
Tilahun Bayih, Themba Dube, Oghenetega Ighedo   +2 more
doaj   +3 more sources

On Almost GO-Menger Space

Dera Natung Government College Research Journal
By employing g-open sets, we present the concept of almost GOMenger space in this article. After that, the nature of almost GO-Menger space is compared to GO-Menger space, and some fundamental topological aspects of such spaces are examined. Additionally,
Susmita Sarkar, Prasenjit Prasenjit Bal
doaj   +3 more sources

Almost strongly star-Menger and related properties

Applied General Topology
In this paper we introduce the almost strongly star-Menger property and we provide some results and relationships with another known properties in literature.
Ricardo Cruz-Castillo, Alejandro Ramírez-Páramo, Jesús F. Tenorio   +2 more
doaj   +3 more sources

Weakly strongly star-Menger spaces

Cubo, 2021
A space $X$ is called weakly strongly star-Menger space if for each sequence ($\mathcal{U}_{n} : n \in \omega$) of open covers of $X,$ there is a sequence $(F_n : n\in\omega)$ of finite subsets of $X$ such that $\overline{\bigcup_{n\in\omega} St(F_n ...
Gaurav Kumar, Brij K. Tyagi
doaj   +1 more source

Superelastic behaviors of additively manufactured porous NiTi shape memory alloys designed with Menger sponge-like fractal structures

Materials & Design, 2021
Additively manufactured porous NiTi alloys hold unprecedented promise in metallic implants due to their low elastic modulus and superelastic behavior. Such porous structures are usually topologically ordered and designed with periodically-repeating unit ...
Meng Zhao, Huaibin Qing, Yongxin Wang, Jin Liang, Mengyao Zhao, Yongliang Geng, Junzhe Liang, Bingheng Lu   +7 more
doaj   +1 more source

On a probabilistic version of Meir-Keeler type fixed point theorem for a family of discontinuous operators

Applied General Topology, 2021
A Meir-Keeler type fixed point theorem for a family of mappings is proved in Menger probabilistic metric space (Menger PM-space). We establish that completeness of the space is equivalent to fixed point property for a larger class of mappings that ...
Ravindra K. Bisht, Vladimir Rakocević
doaj   +1 more source

Selection principles and covering properties in bitopological spaces

Applied General Topology, 2020
Our main focus in this paper is to introduce and study various selection principles in bitopological spaces. In particular, Menger type, and Hurewicz type covering properties like: Almost p-Menger, star p-Menger, strongly star p-Menger, weakly p-Hurewicz,
Moiz ud Din Khan, Amani Sabah
doaj   +1 more source

Liberalizm gospodarczy w myśli Carla Mengera

Annales Etyka w Życiu Gospodarczym, 2020
Over the years, the Austrian School of Economics has created the image of a thinker associated with ideas of liberalism. The views of members of this school are often considered controversial.
Mariusz Mak
doaj   +1 more source

Weak covering properties and selection principles [PDF]

, 2012
No convenient internal characterization of spaces that are productively Lindelof is known. Perhaps the best general result known is Alster's internal characterization, under the Continuum Hypothesis, of productively Lindelof spaces which have a basis of ...
Babinkostova, L., Pansera, B. A., Scheepers, M.   +2 more
core   +3 more sources

The philosophy of Austrian economics [PDF]

, 1994
Review of The Philosophical Origins of Austrian Economics, by David Gordon.
Smith, Barry
core   +1 more source