backward shift 中文意思是什麼
backward shift
解釋
反向移刷-
We detailed toeplitz operator with unomodular symbol, and generated the theorem proved by michael sand in [ 2 ] from h to h + c ( t ). in the second part of this paper, the author discussed simply when multipliction of two toeplitz operators with symbol in h + c ( t ) or in l. we got two conclusions by analyzing symbol of toeplitz operators. the last, we investigated whether multiplication of two toeplitz operators, which range included all non - cyclic vectors of backward shift, is surjective, and partly answered the question about surjective toeplitz algebra posed by michael sand in [ 2 ]
對于單個的toeplitz運算元，考慮其符號的內外分解，得到了它的滿射只與其幺模部分有關的結論，詳細地討論了符號為幺摸函數的toeplitz運算元的各種情況，在討論符號在h ~的特殊情形時，推廣michaelsand [ 2 ]中的定理2到h ~ + c （ t ） ，第二部分簡單地討論了符號在h ~ + c （ t ）以及l ~中的兩個toeplitz運算元的乘積的滿射情況，先對toeplitz運算元的符號進行分析得到兩個結論，最後考察了toeplitz運算元的乘積的值域包含后移運算元的所有非循環向量的滿射情況，部分地回答了michaelsand在[ 2 ]中提出的toeplitz代數滿射問題。 -
Shift backward to kiu tau road junction with tai wo service road west
后移至橋頭路與大窩西支路交界處 -
For the total tardiness scheduling with precedence constraints, an approximation algorithm with polynomial complexity was presented by transplanting the backward - shift algorithm of the case without precedence constraints
摘要把工件之間不帶前後約束的延誤排序的后移演算法移植到帶有前後約束的情況，提出一個多項式時間的近似演算法。
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