本篇論文主要的目的是研究關於單值和多值函數的Korovkin 型近
似定理的結果。對於實數值單值函數的Korovkin 型近似定理，我們將
討論函數定義在錐度量空間和廣義錐度量空間兩種情形，而多值函數
的Korovkin 型近似定理，我們將討論從實數對映到實數中有界且封閉
集合的函數和從度量空間對映到實數中有界且封閉的集合兩種情
形。

The paper is concerned with the result of the Korovkin type
approximation theorem related to functions of single-valued and
multi-valued. For the study of Korovkin type approximation theorem of
single-valued, we discuss the functions define on the space of cone
metric and generalized cone metric. As for the Korovkin type
approximation theorem of multi-valued, we discuss the functions from
real number to closed and bounded sets of real number, the functions
from metric space to closed and bounded sets of real number and the
functions from partial metric space to closed and bounded sets of partial
metric space.

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