Results 41 to 50 of about 9,051,507 (186)

Market demand is a continuous function of prices [PDF]

open access: yes, 1983
Trockel W. Market demand is a continuous function of prices. Economics letters. 1983;12(2):141-146.A natural class of probabilities on the space of consumers' preferences is presented for which market (i.e., mean) demand is a (continuous) function of ...
Walter Trockel   +1 more
core   +1 more source

Decomposition of semi-continuous functions into the sum of quasi-continuous functions and the oscillation of almost continuous functions (in Ukrainian) [PDF]

open access: yesМатематичні Студії, 2011
We prove that every semi-continuous function on a metrizable space is decompose into sum of two quasi-continuous functions. And then we obtain a new characterization of the oscillation of almost continuous functions.
O. V. Maslyuchenko
doaj  

θ-regular spaces

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1985
In this paper we define a topological space X to be θ-regular if every filterbase in X with a nonempty θ-adherence has a nonempty adherence. It is shown that the class of θ-regular topological spaces includes rim-compact topological spaces and that θ ...
Dragan S. Janković
doaj   +1 more source

Comparable Almost Continuous Functions

open access: yesReal Analysis Exchange, 2003
The author defines three conditions for families of real valued functions. The first one characterizes those families \(\mathcal F\) of size \(\leq\) continuum for which there is a positive function \(g\) such that \(f+g\) is almost continuous in the sense of Stallings. The second one describes the same property for families \(\mathcal F\) of size less
openaire   +3 more sources

Almost ω-continuous functions in bitopological spaces

open access: yes, 2022
. In this paper, as a generalization of u-ω-continuous functions, we introduce the notion of almost ω-continuous functions in bitopological spaces and obtain several characterizations and some of its ...
Rosas, Ennis   +3 more
core  

On Faintly θ- Semi-Continuous and Faintly δ-Semi-Continuous Functions

open access: yesمجلة بغداد للعلوم
      Faintly continuous (FC) functions, entitled faintly S-continuous and faintly δS-continuous functions have been introduced and investigated via a -open and -open sets.
Shaimaa Husham Abd-al-Wahad   +2 more
doaj   +1 more source

On the stepanov almost periodic solution of a second-order infinitesimal generator differential equation

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1991
The Stepanov almost periodic solution of a certain second-order differential equation in a reflexive Banach space is shown to be almost periodic.
Aribindi Satyanarayan Rao
doaj   +1 more source

Almost contra (i, j)-continuous multifunctions [PDF]

open access: yes, 2019
The purpose of the present paper is to introduce, study and characterize the upper and lower almost contra (I, J)-continuous multifunctions. Also, we investigate its relation with another well known class of continuous multifunctions.Rosas, Ennis ...
Rosas, Ennis   +2 more
core   +1 more source

Diophantine approximations and almost periodic functions

open access: yesDemonstratio Mathematica, 2017
In this paper we investigate the asymptotic behaviour of the classical continuous and unbounded almost periodic function in the Lebesgue measure.Using diophantine approximations we show that this function can be estimated by functions of polynomial type ...
Nawrocki Adam
doaj   +1 more source

Properties of almost continuous functions [PDF]

open access: yesProceedings of the American Mathematical Society, 1970
Introduction. Professor T. Husain [2] has defined the concept of an almost continuous function from one topological space into another and investigated some of their properties. His definition is as follows: DEFINITION 1. The functionf: X-> Y is almost continuous at xoEX if and only if for each open VC Y containing f (xo), Cl(f-'(V)) is a neighborhood ...
Long, P. E., McGehee, E. E. jun.
openaire   +1 more source

Home - About - Disclaimer - Privacy