COMPACTNESS AND NORM CONTINUITY OF THE DIFFERENCE OF TWO COSINE FUNCTIONS
COMPACTNESS AND NORM CONTINUITY OF THE DIFFERENCE OF TWO COSINE FUNCTIONS
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DOI：
10.11650/tjm.7.2003.1155
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发表时间：
2003-01
影响因子：
0.4
通讯作者：
Miao Li;B. Guo;S. Piskarev
中科院分区：
文献类型：
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作者：
Miao Li;B. Guo;S. Piskarev
证明了两个余弦函数之差的紧性可以用其预解式之差的紧性来刻画。我们还对C 0-半群和余弦函数的结果进行了比较。
We show that the compactness of the difference of two cosine functions can be characterized by that of the difference of their resolvents. We also make some comparisons between such results for C0-semigroups and cosine functions.