Zobrazeno 1 - 2
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pro vyhledávání: '"Qi Mei Xiao"'
Publikováno v:
Mathematical Biosciences and Engineering. 16:3830-3840
In this paper, a delayed Nicholson's blowflies model with a linear harvesting term is investigated. By transforming the model into an equivalent integral equation, and applying a fixed point theorem inc ones, we establish a sufficient condition which
Autor:
Zhen-Liang Zhang, Qi-Mei Xiao
Publikováno v:
Information Sciences. 176:725-733
In this paper, we shall introduce the notions of rough prime ideals and rough fuzzy prime ideals in a semigroup, and give some properties of such ideals. Also, we will discuss the relations between the upper [lower] rough prime ideals and the upper [