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Reliability measures in relation to the h-extra edge-connectivity of folded hypercubes
详细信息
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作者:
Mingzu Zhang
mzuzhang@163.com" class="auth_mail" tit
le
="E-mail the corresponding author
;
Lianzhu Zhang
;
zhanglz@xmu.edu.cn" class="auth_mail" tit
le
="E-mail the corresponding author
;
Xing Feng
fengxing_fm@163.com" class="auth_mail" tit
le
="E-mail the corresponding author
关键词:
Fault to
le
rance
;
Extra edge-connectivity
;
Folded hypercube
;
Multiprocessor
刊名:Theoretical Computer Science
出版年:2016
出版时间:15 February 2016
年:2016
卷:615
期:Comp
le
te
页码:71-77
全文大小:271 K
文摘
The folded hypercube
le="Click to view the MathML source">
FQ
n
FQ
n
, as a variation of the hypercube
le="Click to view the MathML source">Q
n
Q
n
, was proposed by A. El-Amawy and S. Latifi in 1991. The
h
-extra edge-connectivity of the underlying topological graph of a multiprocessor system is a kind of measure for the reliability of the multiprocessor system. In this paper, we determine the exact value of
le="Click to view the MathML source">λ
h
(
FQ
n
)
λ
h
(
FQ
n
)
for integer
h
,
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le="View the MathML source" src="/sd/grey_pxl.gif" data-inlimgeid="1-s2.0-S0304397515011378-si174.gif">
le="vertical-align:bottom" width="88" alt="View the MathML source" tit
le
="View the MathML source" src="http://origin-ars.els-cdn.com/content/image/1-s2.0-S0304397515011378-si174.gif">
1
&
le
;
h
&
le
;
2
⌈
n
2
⌉
+
1
and
le="Click to view the MathML source">6&
le
;n
6
&
le
;
n
, which generalizes several known results for
le="Click to view the MathML source">h&
le
;n
h
&
le
;
n
. More interestingly, we also show that
le="Click to view the MathML source">λ
h
(
FQ
n
)
λ
h
(
FQ
n
)
is the constant
le="View the MathML source" class="mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S0304397515011378&_mathId=si49.gif&_user=111111111&_pii=S0304397515011378&_rdoc=1&_issn=03043975&md5=16507fede6d9635204aafe10f92cdb51">
le="View the MathML source" src="/sd/grey_pxl.gif" data-inlimgeid="1-s2.0-S0304397515011378-si49.gif">
le="vertical-align:bottom" width="119" alt="View the MathML source" tit
le
="View the MathML source" src="http://origin-ars.els-cdn.com/content/image/1-s2.0-S0304397515011378-si49.gif">
(
⌈
n
2
⌉
−
r
+
1
)
2
⌊
n
2
⌋
+
r
for
le="View the MathML source" class="mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S0304397515011378&_mathId=si192.gif&_user=111111111&_pii=S0304397515011378&_rdoc=1&_issn=03043975&md5=e2949cd999756bc3290b0b3f21e596c7">
le="View the MathML source" src="/sd/grey_pxl.gif" data-inlimgeid="1-s2.0-S0304397515011378-si192.gif">
le="vertical-align:bottom" width="145" alt="View the MathML source" tit
le
="View the MathML source" src="http://origin-ars.els-cdn.com/content/image/1-s2.0-S0304397515011378-si192.gif">
2
⌊
n
2
⌋
+
r
−
l
r
&
le
;
h
&
le
;
2
⌊
n
2
⌋
+
r
, where
le="View the MathML source" class="mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S0304397515011378&_mathId=si146.gif&_user=111111111&_pii=S0304397515011378&_rdoc=1&_issn=03043975&md5=df8b7633c756c4e4eb3cf5d6a6ed6ee5">
le="View the MathML source" src="/sd/grey_pxl.gif" data-inlimgeid="1-s2.0-S0304397515011378-si146.gif">
le="vertical-align:bottom" width="122" alt="View the MathML source" tit
le
="View the MathML source" src="http://origin-ars.els-cdn.com/content/image/1-s2.0-S0304397515011378-si146.gif">
r
=
1
,
2
,
…
,
⌈
n
2
⌉
−
1
and
le="View the MathML source" class="mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S0304397515011378&_mathId=si10.gif&_user=111111111&_pii=S0304397515011378&_rdoc=1&_issn=03043975&md5=1080a226c04cbb996b90c7d6948148d7">
le="View the MathML source" src="/sd/grey_pxl.gif" data-inlimgeid="1-s2.0-S0304397515011378-si10.gif">
le="vertical-align:bottom" width="60" alt="View the MathML source" tit
le
="View the MathML source" src="http://origin-ars.els-cdn.com/content/image/1-s2.0-S0304397515011378-si10.gif">
l
r
=
2
2
r
−
1
3
if
n
is odd and
le="View the MathML source" class="mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S0304397515011378&_mathId=si11.gif&_user=111111111&_pii=S0304397515011378&_rdoc=1&_issn=03043975&md5=cf418b1ec93c784d95260d8755735840">
le="View the MathML source" src="/sd/grey_pxl.gif" data-inlimgeid="1-s2.0-S0304397515011378-si11.gif">
le="vertical-align:bottom" width="71" alt="View the MathML source" tit
le
="View the MathML source" src="http://origin-ars.els-cdn.com/content/image/1-s2.0-S0304397515011378-si11.gif">
l
r
=
2
2
r
+
1
−
2
3
if
n
is even. In particular, for
le="View the MathML source" class="mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S0304397515011378&_mathId=si12.gif&_user=111111111&_pii=S0304397515011378&_rdoc=1&_issn=03043975&md5=69093b4790fda941ca6d32fecf3ea3fa">
le="View the MathML source" src="/sd/grey_pxl.gif" data-inlimgeid="1-s2.0-S0304397515011378-si12.gif">
le="vertical-align:bottom" width="70" alt="View the MathML source" tit
le
="View the MathML source" src="http://origin-ars.els-cdn.com/content/image/1-s2.0-S0304397515011378-si12.gif">
r
=
⌈
n
2
⌉
−
1
,
le="View the MathML source" class="mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S0304397515011378&_mathId=si13.gif&_user=111111111&_pii=S0304397515011378&_rdoc=1&_issn=03043975&md5=b9b42f1e2d4bcf1f91ce239ecbff500e">
le="View the MathML source" src="/sd/grey_pxl.gif" data-inlimgeid="1-s2.0-S0304397515011378-si13.gif">
le="vertical-align:bottom" width="108" alt="View the MathML source" tit
le
="View the MathML source" src="http://origin-ars.els-cdn.com/content/image/1-s2.0-S0304397515011378-si13.gif">
⌊
2
n
+
2
3
⌋
&
le
;
h
&
le
;
2
n
−
1
,
le="Click to view the MathML source">λ
h
(
FQ
n
)=2
n
λ
h
(
FQ
n
)
=
2
n
.
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