Applications of complete families of continuous functions to the theory of -spaces
Displaying 21 – 40 of 215
Biequivalences and topology in the alternative set theory
Jaroslav Guričan, Pavol Zlatoš (1985)
Commentationes Mathematicae Universitatis Carolinae
Bijections of scattered spaces onto compact Hausdorff
Władysław Kulpa, Marian Turzański (1988)
Acta Universitatis Carolinae. Mathematica et Physica
Bijections onto compact spaces
Władysław Kulpa, Marian Turzański (1988)
Acta Universitatis Carolinae. Mathematica et Physica
Characterizations of -Lindelöf spaces
Ahmad Al-Omari, Takashi Noiri (2017)
Archivum Mathematicum
A topological space is said to be -Lindelöf [1] if every cover of by cozero sets of admits a countable subcover. In this paper, we obtain new characterizations and preservation theorems of -Lindelöf spaces.
Characterizing polyhedrons and manifolds
Artur Barkhudaryan (2003)
Commentationes Mathematicae Universitatis Carolinae
In [5], W. Taylor shows that each particular compact polyhedron can be characterized in the class of all metrizable spaces containing an arc by means of first order properties of its clone of continuous operations. We will show that such a characterization is possible in the class of compact spaces and in the class of Hausdorff spaces containing an arc. Moreover, our characterization uses only the first order properties of the monoid of self-maps. Also, the possibility of characterizing the closed...
Classification of weak continuities and decomposition of continuity.
Tong, Jingcheng (2004)
International Journal of Mathematics and Mathematical Sciences
Clone properties of topological spaces
Věra Trnková (2006)
Archivum Mathematicum
Clone properties are the properties expressible by the first order sentence of the clone language. The present paper is a contribution to the field of problems asking when distinct sentences of the language determine distinct topological properties. We fully clarify the relations among the rigidity, the fix-point property, the image-determining property and the coconnectedness.
Clones, coclones and coconnected spaces.
Trnková, V. (2000)
Acta Mathematica Universitatis Comenianae. New Series
Clones in topology and algebra.
Sichler, J., Trnková, V. (1997)
Acta Mathematica Universitatis Comenianae. New Series
Closed, continuous images of complete metric spaces
K. Van Doren (1973)
Fundamenta Mathematicae
Colorings of Periodic Homeomorphisms
Yuji Akaike, Naotsugu Chinen, Kazuo Tomoyasu (2009)
Bulletin of the Polish Academy of Sciences. Mathematics
We calculate the exact value of the color number of a periodic homeomorphism without fixed points on a finite connected graph.
Completely continuous functions in intuitionistic fuzzy topological spaces
I. M. Hanafy (2003)
Czechoslovak Mathematical Journal
In this paper, after giving the basic results related to the product of functions and the graph of functions in intuitionistic fuzzy topological spaces, we introduce and study the concept of fuzzy completely continuous functions between intuitionistic fuzzy topological spaces.
Completely -continuous multifunctions.
Ekici, Erdal (2005)
Divulgaciones Matemáticas
Complexity of the class of Peano functions
K. Omiljanowski, S. Solecki, J. Zielinski (2000)
Colloquium Mathematicae
We evaluate the descriptive set theoretic complexity of the space of continuous surjections from to .
Connected CM-homomorphisms into
Kenneth D., Jr. Magill (1973)
Czechoslovak Mathematical Journal
Connectedness in monotone spaces.
Ghosh, Saibal Ranjan, Dasgupta, Hiranmay (2004)
Bulletin of the Malaysian Mathematical Sciences Society. Second Series
Continua with the periodic-recurrent property.
Acosta, Gerardo, Charatonik, Janusz J. (2004)
Mathematica Pannonica
Continuity Based on Convergence and Lower Complete Distributive Lattices instead of Directed Sets
Alexander Abian (1973)
Matematický časopis
Continuity of Nemyckij's operator in Hölder spaces
Pavel Drábek (1975)
Commentationes Mathematicae Universitatis Carolinae