甘肃联合大学学报：自然科学版
甘肅聯閤大學學報：自然科學版
감숙연합대학학보：자연과학판
Journal of Gansu Lianhe University :Natural Sciences
2012年
1期
7-11
,共5页
复杂有向网络%图的谱%直径%回归性%Estrada指标
複雜有嚮網絡%圖的譜%直徑%迴歸性%Estrada指標
복잡유향망락%도적보%직경%회귀성%Estrada지표
the complex directed network%spectrum of graph%diameter%returnability%ndex of estrada
回归性的概念是针对复杂有向网络提出的,它与图的谱有关.用χ（ck,D）表示复杂有向网络D的回归值,图G表示D的基础图,本文研究了直径为3的有向树的回归性的界,进一步缩小了回归值界的范围.
迴歸性的概唸是針對複雜有嚮網絡提齣的,它與圖的譜有關.用χ（ck,D）錶示複雜有嚮網絡D的迴歸值,圖G錶示D的基礎圖,本文研究瞭直徑為3的有嚮樹的迴歸性的界,進一步縮小瞭迴歸值界的範圍.
회귀성적개념시침대복잡유향망락제출적,타여도적보유관.용χ（ck,D）표시복잡유향망락D적회귀치,도G표시D적기출도,본문연구료직경위3적유향수적회귀성적계,진일보축소료회귀치계적범위.
The concept of returnability is based on directed complex network presented,and it is related to spectrum.We use χ（ck,D） represents the returnability of the complex directed network D,Graph G show the based graph of D,this paper studies the range of returnability with diameter 3 of directed tree,which further narrows the range of returnability.
