唐山学院学报
唐山學院學報
당산학원학보
JOURNAL OF TANGSHAN COLLEGE
2010年
3期
11-12
,共2页
吴焕春%张永珍%郑书清
吳煥春%張永珍%鄭書清
오환춘%장영진%정서청
对角算子%伴随算子%正算子%有限秩算子%Hilbert—schrnidt%算子
對角算子%伴隨算子%正算子%有限秩算子%Hilbert—schrnidt%算子
대각산자%반수산자%정산자%유한질산자%Hilbert—schrnidt%산자
diagonal operators%adjoint operators%positive operators%finite rank operators%operators
研究了l2上的对角算子,对其伴随算子进行了刻画,分别得到了对角算子成为正算子、有限秩算子、Hilbert-schmidt算子的充要条件,并给出了其在算子理论中的应用。
研究瞭l2上的對角算子,對其伴隨算子進行瞭刻畫,分彆得到瞭對角算子成為正算子、有限秩算子、Hilbert-schmidt算子的充要條件,併給齣瞭其在算子理論中的應用。
연구료l2상적대각산자,대기반수산자진행료각화,분별득도료대각산자성위정산자、유한질산자、Hilbert-schmidt산자적충요조건,병급출료기재산자이론중적응용。
Diagonal operators on l2 are studied in this paper. The adjoint operators of diagonal operators are also described. Necessary and sufficient conditions for diagonal operators to be positive operators,finite rank operators, or Hilbert-schmidt operators are obtained and their applications in operator theory are also presented.