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全部话题 - 话题: strict
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S*********g
发帖数: 24893
1
http://www.prisoners.com/relcrime.html
宗教对犯罪率的影响
更加信仰基督的地方有更多的社会弊病和犯罪。这是格雷戈里。保罗在学术杂志《宗教
与社会》上发表的初步结论,这个杂志是内布拉斯加州一所教会学校的学报。
http://moses.creighton.edu/JRS/2005/2005-11.html
研究表明,基督教统治的美国南部和中西部地区,社会弊端和犯罪更严重,谋杀,性病
,死亡率更高。这项研究还表明,美国的犯罪率和基督徒比例,比其他发达世界国家都
高得多。
无法回避的现实是,基督教的教条更合适一个病态的社会。宗教狂热分子和极端主义比
毒品危害更大。
理性的人认识到基督教神话的荒谬可怜,而基督徒,尤其是福音派,或原教旨主义者,
不过是一些伪君子,用宗教作为武器来贬低他人。
格雷戈里。保罗的研究首次量化了基督教教义产生的社会效果。不只是基督教,一切狂
热的邪教都可能会有类似的邪恶效果。
当然,天主教会花了几百年压迫陷入贫困和苦难的老百姓。穆斯林有同样的呼吁
:暴力,复仇,排斥和压迫。
理智的人会奇怪宗教神话的诞生。
在美国,宗教=残酷。
Cr... 阅读全帖
c**i
发帖数: 6973
2
(1) The Making of the Sexes l Fluid movement; How men and women are less
different than you think. Economist, Dec 29, 2010.
http://www.economist.com/node/17797036?story_id=
17797036&CFID=153691477&CFTOKEN=44360131
("And, when it comes to humans and sex, variety is infinite. Strongly
masculine and strongly feminine genders mark each end of the spectrum. In
between, every permutation is possible, and the same goes for sexual
orientation.")
My comment:
(a) This article is a book review on Donald P... 阅读全帖
a*******o
发帖数: 699
3
来自主题: WaterWorld版 - water
How to SUCCESSFULLY teach a baby to sleep - 3rd ed.
Group Owner
BabeGirlMom · Pass a Note!
Posted 02/11/2009
http://community.babycenter.com/post/a5417415/how_to_successful
1) WHY?
Sleep training is NOT a fix-all-solution to all sleep problems. If your baby
is not sleeping well, there are usually good reasons why.
The most common reasons are:
1) Overtiredness. All sleep problems are at least partly due to
overtiredness. Some problems my have been initiated by illness, teething, or
phases; but be... 阅读全帖
g********n
发帖数: 4054
4
来自主题: WaterWorld版 - 呵呵, 新年第3天 我中奖了!
还有很多提醒哦,看起来还蛮真的, 嘿嘿。
Congratulations!!! Award Winning Beneficiary
FROM:Laurie Heaton
TO:u*********[email protected]
Message flagged Tuesday, January 3, 2012 1:51 AMMessage body
Award Ref No: N8/EU/2222/07G
Dear Beneficiaries,
Congratulations! You were selected among 7 lucky recipients to
receive the award sum of US$600,000.00 ( Six Hundred Thousand
United States Dollars) as charity donation from the Fondazione
Guiseppe Di Vittorio in conjunction with the United Kingdom
Financial Services Authority, EC... 阅读全帖
t***s
发帖数: 300
5
【 以下文字转载自 Parenting 讨论区 】
发信人: alderbrook (Alderbrook), 信区: Parenting
标 题: 【请置顶 紧急投票】改写亚裔孩子要比非裔SAT高450分才能入名校的现实
发信站: BBS 未名空间站 (Tue Feb 28 01:38:53 2012, 美东)
【紧急投票动员】改写亚裔孩子要比非裔SAT高450分才能入名校的现实
决战最高法院, 请投庄严一票,来捍卫你孩子公平竞争入学名校的机会
请置顶,请在以下网页签名,请转发!
http://admin.80-20nj.info/cgi/80/e?l=8/11e/f&w=no
-----------------
历史性的时刻已经到来了:2/21/2012,美国最高法院决定审理用“族裔”的理由来提
高亚裔和白人高校入学门槛的做法是否违宪。您--关爱孩子未来的父母--现在就可以花
一分钟时间来帮助孩子增大孩子上他们理想大学的机会。请您立即投票赞成(FOR) 80
-20全美亚裔教育基金会的民调书,清楚明白地表明亚裔在这件案子上的立场。
资料显示,亚裔在美国要比其他族裔成绩优秀许多才能... 阅读全帖
a***8
发帖数: 2433
6
【 以下文字转载自 Military 讨论区 】
发信人: acc28 (天下武功,唯快不破!), 信区: Military
标 题: zz. 紧急动员:决战最高法院, 请投庄严一票
发信站: BBS 未名空间站 (Fri Mar 2 15:43:32 2012, 美东)
http://admin.80-20nj.info/cgi/80/e?l=8/11e/f&w=no
紧急动员:决战最高法院, 请投庄严一票
捍卫你孩子公平竞争入学名校的机会
历史性的时刻已经到来了:2/21/2012, 美国最高法院决定审理用"族裔" 的理由来提
高亚裔和白人高校入学门槛的做法是否违宪。您--关爱
孩子未来的父母--现在就可以花一分钟时间来帮助孩子增大孩子上 他们理想大学的机
会。请您立即投票赞成(FOR) 80-20全
美亚裔教育基金会的民调书, 清楚明白地表明亚裔在这件案子上的立场。
http://admin.80-20nj.info/cgi/ 80/e?l=8/11e/f&w=no
资料显示, 亚裔在美国要比其他族裔成绩优秀许多才能上同样的学校。 要上同样的名
校,亚裔SAT要考1550分,... 阅读全帖
K****N
发帖数: 10783
7
来自主题: WebRadio版 - Mark Knopfler - Small Potatoes
http://www.youtube.com/watch?v=9azTIoSXbVM
You can hire and fire, wheel and deal
Run your streets with a fist of steel
But you're small potatoes
Strictly nickel and dime, nickel and dime
Small potatoes, small time
You can raise an army on a town
Be the rent collector, come around
Yeah, but you're small potatoes
Strictly nickel and dime, nickel and dime
Small potatoes, small time
If you take your leave of reality
You have to believe in your own publicity
But you get yourself and agent
Hire the Al
c**i
发帖数: 6973
8
来自主题: Literature版 - Tiger Daughter
(1) Bill Powell, An American Dad on Raising a Tiger Daughter. Time, Jan 20,
2011.
http://www.time.com/time/world
/article/0,8599,2043296,00.html
(Abby Cui-Powell)
Note:
(a) Bill Powell. Time
http://china.blogs.time.com/author/billpowell721/
("Bill Powell is a senior writer for TIME in Shanghai. Prior to current his
post, he was Chief International correspondent for Fortune based in Beijing
and then New York. He also served as Newsweek bureau chief in Moscow, Berlin
and Tokyo. Bill is married to ... 阅读全帖
m******r
发帖数: 4351
9
来自主题: paladin版 - 俺决定主动降维了
这里是那个Strict DLP Chinese v42002的下载地址
http://emulefans.com/strict-dlp-chinese-42002/
我试了一下,只要对吸血螺不去BAN而是选择减分,还是可以一用的
S*********g
发帖数: 24893
10
http://www.prisoners.com/relcrime.html
宗教对犯罪率的影响
更加信仰基督的地方有更多的社会弊病和犯罪。这是格雷戈里。保罗在学术杂志《宗教
与社会》上发表的初步结论,这个杂志是内布拉斯加州一所教会学校的学报。
http://moses.creighton.edu/JRS/2005/2005-11.html
研究表明,基督教统治的美国南部和中西部地区,社会弊端和犯罪更严重,谋杀,性病
,死亡率更高。这项研究还表明,美国的犯罪率和基督徒比例,比其他发达世界国家都
高得多。
无法回避的现实是,基督教的教条更合适一个病态的社会。宗教狂热分子和极端主义比
毒品危害更大。
理性的人认识到基督教神话的荒谬可怜,而基督徒,尤其是福音派,或原教旨主义者,
不过是一些伪君子,用宗教作为武器来贬低他人。
格雷戈里。保罗的研究首次量化了基督教教义产生的社会效果。不只是基督教,一切狂
热的邪教都可能会有类似的邪恶效果。
当然,天主教会花了几百年压迫陷入贫困和苦难的老百姓。穆斯林有同样的呼吁
:暴力,复仇,排斥和压迫。
理智的人会奇怪宗教神话的诞生。
在美国,宗教=残酷。
Cr... 阅读全帖
s***u
发帖数: 1911
11
来自主题: TrustInJesus版 - How much can a Christian sin?
zt
How much can a Christian sin and still say he or she is a Christian? Every d
ay? Every hour? Constantly and continually? As a regular practice of life? J
ust how much can a Christian sin and still say they're a Christian?
There are two general extremes on this issue of "How much can a Christian si
n?"
VIEW #1 "Christians Can't Sin."
On one extreme are those who argue a real Christian can't sin, because being
delivered from sin is what being a Christian is all about. These folk argue
that if y... 阅读全帖
l**********t
发帖数: 5754
12
来自主题: TrustInJesus版 - 【基要派版本】罗马书3:1-20

18. There is no fear of God before their eyes.
"In the last clause [103] he repeats again, in other words, what we have
noticed at the beginning — that every wickedness flows from a disregard of
God: for as the principal part of wisdom is the fear of God, when we depart
from that, there remains in us nothing right or pure. In short, as it is a
bridle to restrain our wickedness, so when it is wanting, we feel at liberty
to indulge every kind of licentiousness.
And that these testimonies may not ... 阅读全帖
l*****a
发帖数: 38403
13
来自主题: TrustInJesus版 - 科尓苏斯这么说过
http://en.wikipedia.org/wiki/Christian_denomination
Catholicism
Main article: Catholicism
These are the churches which claim continuity (based upon Apostolic
Succession) with the early Church.
[edit]Catholic Church
Main article: Catholic Church
The Catholic Church is composed of 23 Rites: the Western or Latin Rite and
the 22 Eastern Rites (i.e., Eastern Catholic Churches).
[edit]The Latin Church
Main article: Latin Rite
The Latin Rite (not to be confused with the Roman Rite, which is one of the
... 阅读全帖
l*****a
发帖数: 38403
14
来自主题: TrustInJesus版 - 嘉言慧语论圣经
Thomas Jefferson, (1743-1826) 3rd American president, author, scientist,
architect, educator, and diplomat. Deist, avid separationist.
"Millions of innocent men, women, and children, since the introduction of
Christianity, have been burned, tortured, fined, and imprisoned, yet we have
not advanced one inch toward uniformity. What has been the effect of
coercion? To make one half of the world fools and the other half hypocrites.
" [Notes on Virginia]
"I do not find in orthodox Christianity one re... 阅读全帖
a*****c
发帖数: 3525
15
从这个词(Hokkien dialect)才知道这个牛妈妈是福建人。
http://online.wsj.com/article/SB1000142405274870411150457605971
* The Wall Street Journal
* THE SATURDAY ESSAY
* JANUARY 8, 2011
Why Chinese Mothers Are Superior
Can a regimen of no playdates, no TV, no computer games and hours of music
practice create happy kids? And what happens when they fight back?
By AMY CHUA
A lot of people wonder how Chinese parents raise such stereotypically
successful kids. They wonder what these parents do to produce so ma... 阅读全帖
w***s
发帖数: 7132
16
【 以下文字转载自 Business 讨论区 】
发信人: walks (踏实做事,诚恳做人), 信区: Business
标 题: 转载------------三十多个国家和地区的Business Culture
发信站: BBS 未名空间站 (Fri May 20 21:02:55 2011, 美东)
三十多个国家和地区的Business Culture
2011-04-08 11:26:57 来自: Seraph(中庸之道)
在Leadershp In Organiztion这门课里面,有一章是探讨cuture,每个人都需要写三条
给外国人在自己国家做生意的建议,老师最后搜集整理了发给了大家。因为是写给同学
的,所以大多数都相当真实。非常有意思,也很revealing! 多读几个国家,you'll be
amazed by the the similarity and difference among different cultures!
Tips for Doing Business in my Country
London Business School
Class of... 阅读全帖
T********l
发帖数: 1670
17
来自主题: Zhejiang版 - Why Chinese Mothers are Superior(ZZ)
Why Chinese Mothers Are Superior
THE SATURDAY ESSAY JANUARY 8, 2011
By AMY CHUA
A lot of people wonder how Chinese parents raise such stereotypically successful kids. They wonder what these parents do to produce so many math whizzes and music prodigies, what
it's like inside the family, andwhether they could do it too. Well, I can tell them, because I've done it. Here are some things my daughters, Sophia and Louisa, were never allowed to do:
• attend a sleepover
• have a playdate
&#... 阅读全帖
j**e
发帖数: 1059
18
来自主题: Apple版 - Apple screws you, again
http://www.wired.com/gadgetlab/2011/01/apple-is-screwing-your-i
Apple doesn’t want to let you inside your iPhone, even if all you want to
do is fix it.
That’s what repair company iFixit claims, at least. The company recently
discovered that Apple has quietly switched the screws in the latest
shipments of the iPhone 4 from a basic Phillips head to a tamper-resistant
screw that you can’t remove with any screwdriver you’d buy at a hardware
store.
The screw in question is called a “Pentalobe” (see r... 阅读全帖
c*****t
发帖数: 1879
19
来自主题: BuildingWeb版 - cross browser/platform .net
Well, I bet you haven't done any JavaScript programming on Safari and/or
Konqueror to see their CSS/DOM compatibility.
My web page is fully xhtml (and uses xhtml DTD, even validify against
xhtml strict DTD). The code generated by javascript is also xhtml (i.e.
the browser can properly read the generated the html in standard mode
xhtml strict mode no problem).
The problem with Safari is mutli-fold. It is based on Konqueror, which
only claims 90% compatibility with standard (check Konqueror web
T*****e
发帖数: 361
20
来自主题: BuildingWeb版 - 问个用table控制版面的问题
想要的效果就是把一个网页的内容分为上、中、下三部分,
分别是header, contents, and footer,并且header紧靠
页面顶端,然后是内容,而footer则紧靠页面底端。
实现的思路是:
1 html body高、宽都设为100%
2 第一个table上下两格,上格嵌套一个table用来放
header和内容,向上垂直对齐;下格放footer,向下垂直
对齐。这个table高宽都为100%。
3 嵌套的table也是上下两格,上格放header,下格放内
容。
html代码附后。
问题:在IE中看着好像没有问题,但是FireFox中footer还是
紧靠在内容后面,并没有紧贴页面底端。使用DOM Inspector
发现html body的大小并没有覆盖整个页面,不知道为什么?
PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">

发帖数: 1
21
来自主题: Hardware版 - 按摩店的游戏性能
Windows 10 Scheduler问题也被证实,下个软件补丁应该能提高一些RYZEN性能。
http://forums.anandtech.com/threads/ryzen-strictly-technical.2500572/page-8#post-38775732
http://forums.anandtech.com/threads/ryzen-strictly-technical.2500572/page-10

发帖数: 1
22
来自主题: Hardware版 - 按摩店的游戏性能
Windows 10 Scheduler问题也被证实,下个软件补丁应该能提高一些RYZEN性能。
http://forums.anandtech.com/threads/ryzen-strictly-technical.2500572/page-8#post-38775732
http://forums.anandtech.com/threads/ryzen-strictly-technical.2500572/page-10

发帖数: 1
23
来自主题: Hardware版 - AMD new 16 core HEDT Rumor
http://forums.anandtech.com/threads/ryzen-strictly-technical.2500572/page-34#post-38797798
Public knowledge by now but AMD has a new HEDT platform coming out in a
couple of months
You'll see more of it at Computex I believe.
It's a 16 core /32 Thread, quad channel behemoth. And it is insanely quick
in the tests that Ryzen is already excelling at. So Cinebench, and all other
related productivity programs. The gaming issues that were causing the
Ryzen AM4 CPUs to behave erratically to say the leas... 阅读全帖
r**k
发帖数: 111
24
来自主题: Internet版 - 想下载这个页面里面的flash 文件
【 以下文字转载自 Java 讨论区 】
发信人: rick (hehe), 信区: Java
标 题: 想下载这个页面里面的flash 文件
发信站: BBS 未名空间站 (Tue Aug 28 18:12:19 2007), 转信
请问应该如何操作?
http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">



g*****g
发帖数: 34805
25
来自主题: Java版 - Complaint about Java class package
It's going to be a mess when it's a confusion even for a simple
example like this. In reality, it's not worth the trouble. Java
is pretty strict in the syntax, and this is one of the places
you want to be strict, a classnotfound exception in startup is
way better than a nosuchmethod exception in runtime.
p***o
发帖数: 1252
26
来自主题: Programming版 - 问一个sort的问题
It is required by the algorithm. Read 25.3 of the C++ standard.
3 For all algorithms that take Compare, there is a version that uses
operator< instead. That is, comp(*i, *j) != false defaults to
*i < *j != false. For the algorithms to work correctly, comp has
to induce a strict weak ordering on the values.
4 The term strict refers to the requirement of an irreflexive relation
(!comp(x, x) for all x), and the term weak to requirements that are
not as strong as those for a total ordering
g*****u
发帖数: 298
27
来自主题: Programming版 - 两个矩阵的算法题
1. Given a M*N matrix A in which all the elements in a row and all the
elements in a column are strictly increasing. Find a path from the smallest
element (ie A[0][0]) to the largest element (ie A[M-1][N-1]) such that the
sum of the elements in the path is maximum. Time Complexity O(m+n). Use
efficient space.
我觉得这个隐含只能向右和向下走。
2. Given a M*N matrix A in which all the elements in a row and all the
elements in a column are strictly increasing. Print the numbers in ascending
order.
w********m
发帖数: 1137
28
来自主题: Programming版 - 看来你们是真心没做过web啊
没看懂你这个例子. JS function里面的variable都是local和protected. 你在外面没
法改变.
你是说想JS的object可以动态加成员吗?如果不喜欢这种写法,简单加一句“use
strict”切换到strict mode就完了。
k**********g
发帖数: 989
29
来自主题: Programming版 - C问题,被64bit iPhone搞晕了

(我是软粉。)
This post talks about integer widths from the language / compiler
perspective. This post is strictly unrelated to the design or limitations of
the underlying CPU architecture. In all cases, compiler has the
responsibility of enabling, and if necessary, emulating the integer types of
various widths.
Turbo Pascal supports 32-bit integer types on 16-bit DOS processes and CPUs.
It provides the REAL floating point type, which is 6 bytes (48 bits) and is
strictly emulated in software.
a*****e
发帖数: 1700
30
lazy vs strict 这个问题,基本的 facts 都总结在这两个文章里面:
http://existentialtype.wordpress.com/2011/04/24/the-real-point-
第一篇是 Bob Harper 写的,学过 SML 的应该都知道他吧,估计没有人比他更痛恨
Haskell 了,呵呵。文章讲到的都很有道理,没讲到的我觉得应该是故意略过了。所以
要看第二篇。
http://augustss.blogspot.com/2011/05/more-points-for-lazy-evalu
第二篇是 Lennart Augustsson 写的,早期 Haskell 的重要功臣之一,他在 Standard
Chartered 写的内部用的 mu haskell 是 strict by default。他这个文章讲了几点
laziness 的好处,就算是 Harper 也不好反驳。

don'
l*****i
发帖数: 3929
31
【 以下文字转载自 Linux 讨论区 】
【 原文由 longhei 所发表 】
有这样一段perl script:
use strict;
open(my $fd," my(@cgits,@barits);
while(<$fd>) {
$_ =~ s/^\s+//; # trim leading white space
my($iter,$res,$obj,$feas,$dual,$comp,$its,$mu,$junk) = split(/\s+/,$_);
next if ! defined $its || $its !~ /^\d+$/; # skip if seventh token not
integer
push(@cgits,$its);
push(@barits,$its) if $mu > 2.1e-8;
}
有这样几个问题请教:
1。“use strict”是干什么用的?
2。open(my $fd,"
t*****u
发帖数: 965
32
来自主题: Accounting版 - I've passed all the CPA exams,so
yes, very strict 如果你要的是能在auditor report上签字的CPA
if you just want to be called CPA, then IL is the only one left without
working experience. You must have 150 units, you will get ur CPA certificate
and you can call urself a CPA, BUT if you ever work for a CPA firm, you can
not say you are CPA unless you get the one with attestation.
I applied the IL CPA(NON public one), but got turn down because I was 1 unit
short to 150 units. The evaluation person(Only one doing it) is very strict
, she consider
F****8
发帖数: 289
33
来自主题: Biology版 - 澳洲实验室NgAgo的最新进展
His Hypothesis on how NgAgo function (他的原话):
Firstly, as many, I have found strictly NO EVIDENCE for genome editing with
NgAgo after multiple attempts. Secondly I found instead a ‘Ligase’ like
activity of NgAgo under normal PCR conditions, which has strictly nothing to
do with the endonuclease activity claimed in Han’s paper. It seems to me
that the NgAgo enzyme needs to be heated over 50 C to function, which is in
direct contradiction to the Han’s paper.

发帖数: 1
34
来自主题: Biology版 - Iamback又向澳洲哥开火了
http://www.webjb.org/rainbowplan/bbs/topic.php?topic=234590
那位Gaetan Burgio更搞笑
虹桥科教论坛 http://www.rainbowplan.org/bbs/edu/
送交者: iamback 于 2016-08-04 10:24:12
回答: 凭常识判断事情最多不了了之,韩想靠此扬名立万是不可能了 由 Dishui324 于
2016-08-04 08:26:27
他自己的PCR结果一团糟,然后就得出推测:NgAgo是一个连接酶!
他的意思,含有NgAgo基因的质粒进入细胞后,被翻译为NgAgo蛋白,然后这个蛋白存在
(污染?)于提纯基因组DNA的产物中,在PCR反应的条件下(55度),这个污染的NgAgo就
有了活性,把primer连接到DNA上。
而且的而且,如果primer浓度非常高的话,就降解了这个NgAgo,使其失活。
这种想象力也太丰富。
Gaetan Burgio:
----------------------------------------
My Hypothesis on how NgA... 阅读全帖
w***s
发帖数: 7132
35
三十多个国家和地区的Business Culture
2011-04-08 11:26:57 来自: Seraph(中庸之道)
在Leadershp In Organiztion这门课里面,有一章是探讨cuture,每个人都需要写三条
给外国人在自己国家做生意的建议,老师最后搜集整理了发给了大家。因为是写给同学
的,所以大多数都相当真实。非常有意思,也很revealing! 多读几个国家,you'll be
amazed by the the similarity and difference among different cultures!
Tips for Doing Business in my Country
London Business School
Class of Master in Management 2011 students
Austria
Punctuality is important
It is very important to address Austrian business people with their title e.
g. Dr. an... 阅读全帖
c*****g
发帖数: 12
36
看看有谁能帮我做出来.谢谢.
Consider a competitive economy with a single non-storable consumption
good:corn.
There are two consumers, each of which is a strictly risk-averse expected
utility maximizer with time separable preference and is endowed with a given
amount of corn each period, which depends on the state of the world.
There are two states: in state 1 there are locusts, while in state 2 there are
not. There is 10% chance that state 1 occurs. The aggregate corn endowment is
strictly lower when there a
T******T
发帖数: 3066
37
来自主题: EE版 - Verilog vs VHDL
private sector : mostly verilog, some system-verilog
Public sector/defense/academic: mostly VHDL
Verilog
pro: Much less verbose, more flexible test benching capability.
con: Less strict, more error prone, easier to have synthesis issues.
VHDL
pro: Very strict, less error prone, less headache due to code quality.
con: Much more verbose than verilog (personaly experience is about 15-
20% more lines of code) when describing the same
circuitry, less flexible... 阅读全帖
c**d
发帖数: 3888
38
如果去的法学院不是 Top-14,甚至不是 Top 50,没有很强的 patent 背景,希望你们
能避免弯路。下面的故事读起来像小说,但是我可以告诉你们,非常现实。
http://www.autoadmit.com/thread.php?thread_id=1905801&forum_id=2#20761498
In a couple short weeks, a new wave of hapless lemmings will crack open the
shrinkwrap on those heinously overpriced casebooks, boot up their laptops
for some heated note-taking, and commence their voyage down the road of
America’s most overrated, miserable, and saturated industry: the practice
of law. A pompous, overpaid professor will sau... 阅读全帖
x******i
发帖数: 3022
39
来自主题: Mathematics版 - 矩阵特征值问题请教

I think the following is true:
suppose A and B are both symmetric and positive definite,
with B strictly positive definite, and suppose C= A+B
then if we list A's eigenvalues as
a_1>=a_2>=a_3>= ... >= a_n
and C's eigenvalues as
c_1>=c_2>=c_3>= ... >= c_n
then
c_1 > a_1
c_2 > a_2
c_3 > a_3
...
c_n > a_n
This can be easily proved by recognizing that the ellipsoid
corresponding to x*C*x = 1 lies strictly within the ellipsoid
corresponding to x*A*x = 1.
Suppose the eigenvectors corresponding to a_
S*********g
发帖数: 7653
40
来自主题: Mathematics版 - 选课求助。哪门课最难?

感觉这些东西 在某种意义下 放到更抽象的setting里,好像能"看清楚"是啥东西,比
如Zariski
topology,collection of closed sets. 简单来看,考虑affine的情形(当然affine的
情形
就无论怎么说都简单),对应的是A--->>A/I(collection of strict epimorphism
which
is surjective map) 而一般的collection of strict epimorphism 组成canonical
topology in category of schemes.
这样看上去,好像“清楚”一些
j***m
发帖数: 16
41
来自主题: Mathematics版 - 借人气问个优化问题
如何证明非线性优化解的唯一性?google了一下,有的说,用 bordered Hessian, 对
min problem, 如果都 strict negative,那问题是 strict quasiconvex, 就可以证明
解是唯一。不过有的书上说,只是必要条件。 有人可以提供点comment 吗?
L********3
发帖数: 204
42
来自主题: Mathematics版 - prove or find counterexample
f(x):[0,\infty)->R^+, f is strictly increasing and strictly convex, i.e.
f>0, f'>0, f''>=0 on (0,\infty). Moreover f(0)=0, f'(0)=0.
Show that: 2x^2f''(x)-xf'(x)+f(x)>0 on (0,\infty).
Counterexample is wellcome as well.
You can also relax the condition on the domain
(instead of on (0,\infty), any interval (0, a), a>0 is ok).
You can also neglect the condition f'(0)=0.
Thanks.
b*****e
发帖数: 88
43
来自主题: Mathematics版 - Can anyone help with this problem?
distribution function's support could be [constant,constant], for example,
uniform distribution on [a, b].
first order stochastic dominance requires "less than or equal to" and "less
than" for some t. Strictly speaking, the condition given is a little bit
stronger than FOSD.
To be more specific, let's assume two cumulative distribution functions, G1(
t) and G2(t), on [0,c] are two strictly increasing functions. Then, let F1(t
)=G1(t)*G2(t) and F2(t)=G1(t), which leads to F1(t)阅读全帖
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