Countable KC Functions and Inversely Countable KC Functions


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Authors

  • Devender Kumar Kamboj Department of Mathematics, Government College, Gharaunda (Karnal), Haryana, India
  • Dalip Singh Department of Mathematics, CMRJ Government College, Mithi Sureran, Ellenabad (Sirsa), Haryana, India
  • Vinod Kumar Department of Mathematics, Government College, Gharaunda (Karnal), Haryana, India

Keywords:

Countable KC function, Inversely countable KC function, Continuous function, Frechet space

Abstract

In this paper, we introduce a new class of functions to be called countable KC and inversely countable KC functions. We study some relations between countable KC functions and inversely countable KC functions. We prove that if f is a continuous function from a space X to a Frechet, countable KC space Y, then $f(H)$ is closed in Y whenever H is a limit point compact set of X. It is also proved that if f is a countable KC function from a Frechet space X to a compact space Y, having closed point inverses, then f is continuous.

 

Author Biographies

Devender Kumar Kamboj, Department of Mathematics, Government College, Gharaunda (Karnal), Haryana, India

 

 

Dalip Singh, Department of Mathematics, CMRJ Government College, Mithi Sureran, Ellenabad (Sirsa), Haryana, India

 

 

Vinod Kumar, Department of Mathematics, Government College, Gharaunda (Karnal), Haryana, India

 

 

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Published

01-03-2018

How to Cite

Devender Kumar Kamboj, Dalip Singh, & Vinod Kumar. (2018). Countable KC Functions and Inversely Countable KC Functions. International Journal of Mathematics And Its Applications, 6(1 - D), 707–709. Retrieved from http://ijmaa.in/index.php/ijmaa/article/view/1131

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Section

Research Article