Browsing Research and Publications - Department of Mathematics by Author "So, Keum Sook"

Browsing Research and Publications - Department of Mathematics by Author "So, Keum Sook"

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  • Kim, Hee Sik; Neggers, J.; So, Keum Sook (2016)
    In this paper, we introduce fuzzy rank functions for groupoids, and we investigate their roles in the semigroup of binary systems by using the notions of right parallelisms and ρ-shrinking groupoids.
  • Kim, Heek Sik; Neggers, J.; So, Keum Sook (2013)
    In this paper, we introduce the notion of generalized Fibonacci sequences over a groupoid and discuss it in particular for the case where the groupoid contains idempotents and pre-idempotents. Using the notion of ...
  • Kim, Hee Sik; Neggers, Joseph; So, Keum Sook (2012)
    In this paper we discuss Fibonacci functions using the (ultimately) periodicity and we also discuss the exponential Fibonacci functions. Especially, given a non-negative real-valued function, we obtain several exponential ...

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