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全部话题 - 话题: sheaf
1 (共1页)
D**o
发帖数: 2653
1
来自主题: Mathematics版 - 关于煙花不堪剪
注意作者 \author{YHBKJ}
Atiyah-Bott Localization 1
2012-09-05 09:24:19
\documentclass[a4paper,12pt]{article}
\usepackage{amsfonts}
\usepackage{amsmath,amsthm,amssymb}
\usepackage{CJK,graphicx}
\usepackage{amscd}
\usepackage{amssymb}
\newtheorem{theorem}{Theorem}[section]
\newtheorem{corollary}{Corollary}[section]
\newtheorem{definition}{Definition}[section]
\newtheorem{lemma}{Lemma}[section]
\begin{document}
\title{\textbf{\Huge{Atiyah-Bott Localization 1}}}\author{YHBKJ}\date{}\
maketitle
\begin{ab... 阅读全帖
t*******h
发帖数: 2744
2
来自主题: LeisureTime版 - Noise Poetry: An Interview with Thurston Moore
Beatdom
ABOUTSUBMISSION GUIDELINESBUY
Home/Beatdom Content/Noise Poetry: An Interview with Thurston Moore
Thurston Moore reading his poetry at Naropa University's Summer Writing
Program, 2011.
Noise Poetry: An Interview with Thurston Moore
Share
0
0
0
As an MFA fiction student at the Jack Kerouac School of Disembodied Poetics
at Naropa University (one of the longest, most consistently-made-fun-of
school names ever), I was fortunate enough to be brought face-to-face with
some of the most legendar... 阅读全帖
c****t
发帖数: 19049
3
来自主题: SciFiction版 - 云图 英文版
HALF-LIVES
the first luisa rey
mystery
I
Rufus Sixsmith leans over the balcony and estimates his body’s velocity
when it hits the
sidewalk and lays his dilemmas to rest. A telephone rings in the unlit room.
Sixsmith dares not
answer. Disco music booms from the next apartment, where a party is in full
swing, and
Sixsmith feels older than his sixty-six years. Smog obscures the stars, but
north and south
along the coastal strip, Buenas Yerbas’s billion lights simmer. West, the
Pacific eternity East... 阅读全帖
S*********g
发帖数: 7653
4
来自主题: Mathematics版 - 选课求助。哪门课最难?

一部分agree.我所谓的这个“清楚”,考虑下面这个例子
比如D-modules, sheaf of modules over differential operators on scheme. 考
虑category of quasi coherent D-modules on P^1. 恩,这个玩意显然是可以从local
的glue到global的,也就是说,如果想看“清楚”这个粘differential operators是怎
么样
的,那就开始具体算在两个open sets(A^1)上,这个algebra of differential
operators是什么样的,(两个First Weyl algebra),然后算intersection上的,然后
定义
出那个transition isomorphism,然后沿着这个isomorphism 粘上去。恩,这样很清楚
不过从另一个角度来说,这实际上是由于没“看清楚”这个D-modules到底是个什么玩
意,才这么
deeply involved到这个细节中,实际上category of quasi coherent D-mo... 阅读全帖
s*****V
发帖数: 21731
5
http://site.douban.com/130104/widget/notes/5389697/note/1820952
2011-11-03 23:35:00
我想谈谈过去五十年和我预测未来一百年的代数几何,我将一次次分开讨论,如果有兴趣
请支持:
1940-1965
代数几何在1900年以前,已经有了代数曲面的部分理论和代数曲线上的Riemann-Roch定
理,但是语言和概念处于一个混乱的状态.在1950到1965年间出现了三个巨大的革命.奠
定了代数几何的秩序描述了重要的问题,提供了未来发展的方向.她们是Hodge(加一堆人
)开创复几何, Kodaira的三大工作和Grothendieck的抽象语言及新定义(问题):
让我先讲第一项工作.
Hodge+Lefschetz+Kaehler考虑了复流形的定义和一般的性质,Kaehler引入了Kaehler度
量,Hodge利用了分析中着名的Elliptic regularity对Kaehler流形的上同调群作了至今
仍然神秘的Hodge分解,并且提出着名的Hodge猜想,Lefschetz证明了Hodge猜想的非常特
殊情形... 阅读全帖
b****h
发帖数: 1022
6
来自主题: _OurFantasia版 - missle weapons range
Weapon ROF S M L
Arquebus 1/3 50 150 210
Blowgun 2/1 10 20 30
Comp. long bow,
flight arrow 2/1 60 120 210
Comp. long bow,
sheaf arrow 2/1 40 80 170
Comp. short bow 2/1 50 100 180
Longbow,
flight arrow 2/1 70 140 210
Longbow,
sheaf arrow 2/1 50 100 170
Short bow 2/1 50 100 150
Club 1 10 20 30
Hand c
E*V
发帖数: 17544
7
来自主题: Military版 - read this carefully!
【 以下文字转载自 WorldNews 讨论区 】
发信人: EUV (奶特都是卖国贼), 信区: WorldNews
标 题: read this carefully!
发信站: BBS 未名空间站 (Sun May 29 00:08:46 2011, 美东)
http://www.nytimes.com/2011/05/29/us/29surveillance.html?_r=1&h
AUSTIN, Tex. A fat sheaf of F.B.I. reports meticulously details the
surveillance that counterterrorism agents directed at the one-story house in
East Austin. For at least three years, they traced the license plates of
cars parked out front, recorded the comings and goings of residents and
guests and, i... 阅读全帖
O**n
发帖数: 649
8
AUSTIN, Tex. — A fat sheaf of F.B.I. reports meticulously details the
surveillance that counterterrorism agents directed at the one-story house in
East Austin. For at least three years, they traced the license plates of
cars parked out front, recorded the comings and goings of residents and
guests and, in one case, speculated about a suspicious flat object spread
out across the driveway.
“The content could not be determined from the street,” an agent observing
from his car reported one day in 20... 阅读全帖
l*****7
发帖数: 8463
9
民主和自由地抢劫中国珍宝-这就是西方文明
http://www.wenxuecity.com/news/2012/11/02/2061775.html
英拍卖行撤拍两圆明园文物 称不想冒犯中国人民(图)
文章来源: 中新网 于 2012-11-02 20:55:31 - 新闻取自各大新闻媒体,新闻内容并不
代表本网立场!
打印本新闻 (被阅读 14767次)
英国邦瀚斯拍卖行(Bonhams)2日通过电子邮件告知中新网记者,两件圆明园流失文物已
被所有者收回,不会参与邦瀚斯将于11月8日举行的中国艺术品拍卖会。
邦瀚斯拍卖行亚洲艺术品部主管科林·希夫(Colin Sheaf)发表声明称,邦瀚斯从
未想过要冒犯中国人民,并对此事在中国引起的负面影响表示遗憾。
近日,邦瀚斯拍卖行在其网站上宣布,将于11月8日举行一场中国艺术品拍卖会,
其中的拍品包括两件圆明园文物,分别是“清嘉庆白玉镂雕凤纹长宜子孙牌”和“清乾
隆青玉雕仿古兽面纹提梁卣”。邦瀚斯拍卖行还在其网站标明这两件文物的“出身证明
”,明确记载是由英军第六十七兵团的上尉军官阿瑟·朱尔斯·罗伯森1860年“从中国
夏宫(圆明园)带出”... 阅读全帖
w*******e
发帖数: 15912
10
来自主题: Military版 - 重读黄渝,内牛满面
http://www.douban.com/group/topic/26091824/
Huang Yu passed away in a car accident on Dec 24th. He lived in Kearny, NJ.
It happened at around 4 am when he was on his way to work to deliver
newspapers. He had a flat tire on Route 22. He was replacing his flat tire
when another driver, apparently with DWI, struck him from behind.
It's said he left with no money, less than $100 in the bank.
怀念黄渝
作者:曾思欣
黄渝是1989年底来到Johns Hopkins的,我是1990年10月来的,他比我高一个年级,我们
虽然不久就认识,但成为很熟的朋友大概是在一两年后了。同在数学系的时候,我和他办
过讨论班,还... 阅读全帖
l*****9
发帖数: 9501
11
【 以下文字转载自 Returnee 讨论区 】
发信人: lqm1989 (Jeremy Lin), 信区: Returnee
标 题: 黄渝还是俗了,压根儿不该来美国,来了也该尽快回国 (转载)
发信站: BBS 未名空间站 (Wed May 22 11:46:51 2013, 美东)
发信人: lqm1989 (Jeremy Lin), 信区: Mathematics
标 题: 黄渝还是俗了,压根儿不该来美国,来了也该尽快回国
发信站: BBS 未名空间站 (Wed May 22 11:15:48 2013, 美东)
以他的水平,只要不怕穷,在国内应该可以出成果
黄渝是彻底的无产无妻,1米8多的帅哥
发信人: bobpop(bobo), 信区: STPC
标 题: 讣闻1例:怀念黄渝——一位科大数学怪才在美国的经历
发信站: 瀚海星云 (2008年12月18日03:10:42 星期四), 站内信件 WWWPOST
讣闻1例:怀念黄渝——一位科大数学怪才在美国的经历06-12-17 18:28 发表于:
《皖
军同盟》 分类:未分类
http://www.tellnet.com... 阅读全帖
w********9
发帖数: 8613
12
来自主题: Military版 - 惊讶于德国人的英语能力
这是Shorter Oxford American English Dictionary第五版列出的与德语或者日耳曼语
相关的英语词根或词汇。
-at, suffix2. + -dom, suffix. + -ed, suffix1. + -ed, suffix2. + -en, suffix1
+ -en, suffix2 + -en, suffix5 + -en, suffix6 + -er, suffix1. + -er, suffix3
. + -er, suffix5. + -est, suffix1. + -est, suffix2. + -et, suffix2. + -eth,
suffix1. + -hood, suffix. + -ing, suffix1. + -ing, suffix3. + -ish, suffix1.
+ -kin, suffix. + -le, suffix1 + -le, suffix3 + -less, suffix. + -ling,
suffix1. + -ling, suffix2 + -ly, suffix1. + -ly, s... 阅读全帖
b********n
发帖数: 38600
13
来自: Mosbichttp://ncatlab.org 2011-12-25 18:15:56
Huang Yu passed away in a car accident on Dec 24th. He lived in Kearny, NJ.
I
t happened at around 4 am when he was on his way to work to deliver
newspaper
s. He had a flat tire on Route 22. He was replacing his flat tire when
anothe
r driver, apparently with DWI, struck him from behind.
It's said he left with no money, less than $100 in the bank.
怀念黄渝
作者:曾思欣
黄渝是1989年底来到Johns Hopkins的,我是1990年10月来的,他比我高一个年级,我

虽然不久就认识,但成为很熟的朋友大概是在一两年后了。同在数学系的时候,... 阅读全帖
N**G
发帖数: 392
t**x
发帖数: 20965
15
来自主题: Military版 - 为什麽不回国? 极少生气的他
有帮助的就有冷嘲热讽的, 国内不是没有帮助他啊。 丁石孙那么邀请, 他在美国最
冷的时候北大可是给了他温暖, 说不定没有一份温暖, 他早就死在了美国。 看看这
个就没有那么幸运了
应该说张益唐也算是lucky的
他很有才华,还能逆境中坚持。
但是这个世界上也有很多像他一样有才华,也坚持的人,最后却没能开出花,结出果来
下面这位也是数学的留学生,大概和张益唐算是同龄人
----------------------------------------------------------------------------
--------------------
Huang Yu passed away in a car accident on Dec 24th. He lived in Kearny, NJ.
It happened at around 4 am when he was on his way to work to deliver
newspaper s. He had a flat tire on Route 22. He was replacing his flat t... 阅读全帖
t**x
发帖数: 20965
16
来自主题: Military版 - 又极个别可能亏钱的
又极个别可能亏钱的, 但总体上清华北大的, 国家端着供着, 一点不欠这些人的。
张益唐, 找不到工作, 北大校长丁石孙邀请他回北大工作。。。
蒋国兵(?), 清华加拿大跳桥的, 第一次回国, 据说清华副教授, 自己又跑出来
, 到帝国主义国家找死。。。
别的例子我就不举了。 浙大似乎跳楼一个, 清华北大我还真没有见国家亏欠多少。。
清华颜出国, 开始怀念清华食堂, 早有人预料她会怀念国内拿到手软的科研经费。。
。 北美的确工资高, 可是也不能给她一个人开高工资, 别的清华教授喝西北风, 是
不是。。
别人抱怨可以, 但是张益唐这个岁数的, 没有比中国共产党更尊重他们的了。 都是
赌气, 牛逼, 不顺心的时候如果不是运气好得象张益唐,基本都烂到沟里了。
应该说张益唐也算是lucky的
他很有才华,还能逆境中坚持。
但是这个世界上也有很多像他一样有才华,也坚持的人,最后却没能开出花,结出果来
下面这位也是数学的留学生,大概和张益唐算是同龄人
---------------------------------------------------------------------------... 阅读全帖
b****a
发帖数: 4465
17
来自主题: Military版 - 曾思欣 黄渝是1989年底来到Johns
Huang Yu passed away in a car accident on Dec 24th. He lived in Kearny, NJ.
It happened at around 4 am when he was on his way to work to deliver
newspapers. He had a flat tire on Route 22. He was replacing his flat tire
when another driver, apparently with DWI, struck him from behind.
It's said he left with no money, less than $100 in the bank.
怀念黄渝
作者:曾思欣
黄渝是1989年底来到Johns Hopkins的,我是1990年10月来的,他比我高一个年级,我

虽然不久就认识,但成为很熟的朋友大概是在一两年后了。同在数学系的时候,我和他

过讨论班,还试图合作做过问题(很可惜没有结果)。2000年他搬到纽约后,更是我们家

常客,我... 阅读全帖

发帖数: 1
18
来自主题: Military版 - 接着聊聊解析函数
你对sheaf很熟,对torsion熟悉吗?
s**********t
发帖数: 1846
19
【 以下文字转载自 Returnee 讨论区 】
发信人: lqm1989 (Jeremy Lin), 信区: Returnee
标 题: 黄渝还是俗了,压根儿不该来美国,来了也该尽快回国 (转载)
发信站: BBS 未名空间站 (Wed May 22 11:46:51 2013, 美东)
发信人: lqm1989 (Jeremy Lin), 信区: Mathematics
标 题: 黄渝还是俗了,压根儿不该来美国,来了也该尽快回国
发信站: BBS 未名空间站 (Wed May 22 11:15:48 2013, 美东)
以他的水平,只要不怕穷,在国内应该可以出成果
黄渝是彻底的无产无妻,1米8多的帅哥
发信人: bobpop(bobo), 信区: STPC
标 题: 讣闻1例:怀念黄渝——一位科大数学怪才在美国的经历
发信站: 瀚海星云 (2008年12月18日03:10:42 星期四), 站内信件 WWWPOST
讣闻1例:怀念黄渝——一位科大数学怪才在美国的经历06-12-17 18:28 发表于:
《皖
军同盟》 分类:未分类
http://www.tellnet.com.c... 阅读全帖
D*V
发帖数: 3096
20
【 以下文字转载自 Returnee 讨论区 】
发信人: lqm1989 (Jeremy Lin), 信区: Returnee
标 题: 黄渝还是俗了,压根儿不该来美国,来了也该尽快回国 (转载)
发信站: BBS 未名空间站 (Wed May 22 11:46:51 2013, 美东)
发信人: lqm1989 (Jeremy Lin), 信区: Mathematics
标 题: 黄渝还是俗了,压根儿不该来美国,来了也该尽快回国
发信站: BBS 未名空间站 (Wed May 22 11:15:48 2013, 美东)
以他的水平,只要不怕穷,在国内应该可以出成果
黄渝是彻底的无产无妻,1米8多的帅哥
发信人: bobpop(bobo), 信区: STPC
标 题: 讣闻1例:怀念黄渝——一位科大数学怪才在美国的经历
发信站: 瀚海星云 (2008年12月18日03:10:42 星期四), 站内信件 WWWPOST
讣闻1例:怀念黄渝——一位科大数学怪才在美国的经历06-12-17 18:28 发表于:
《皖
军同盟》 分类:未分类
http://www.tellnet.com.c... 阅读全帖
E*V
发帖数: 17544
21
来自主题: WorldNews版 - read this carefully!
http://www.nytimes.com/2011/05/29/us/29surveillance.html?_r=1&h
AUSTIN, Tex. A fat sheaf of F.B.I. reports meticulously details the
surveillance that counterterrorism agents directed at the one-story house in
East Austin. For at least three years, they traced the license plates of
cars parked out front, recorded the comings and goings of residents and
guests and, in one case, speculated about a suspicious flat object spread
out across the driveway.
The content could not be determined from the st... 阅读全帖
n********e
发帖数: 41
22
来自主题: JobHunting版 - Leetcode的系统真是弱爆了
楼主 看到 你 isDiffByOne 函数就知道你必然要超时
Leetcode免费给你用 就别挑剔了。凡事要先从自身找问题
你那个测试不是大数据
真正的大数据在这里:
start = "nanny";
end = "aloud";
String[] d = {"ricky","grind","cubic","panic","lover","farce","gofer
","sales","flint","omens","lipid","briny","cloth","anted","slime","oaten","
harsh","touts","stoop","cabal","lazed","elton","skunk","nicer","pesky","
kusch","bused","kinda","tunis","enjoy","aches","prowl","babar","rooms","
burst","slush","pines","urine","pinky","bayed","mania","light","flare","
wares","wom... 阅读全帖
l*****9
发帖数: 9501
23
【 以下文字转载自 Mathematics 讨论区 】
发信人: lqm1989 (Jeremy Lin), 信区: Mathematics
标 题: 黄渝还是俗了,压根儿不该来美国,来了也该尽快回国
发信站: BBS 未名空间站 (Wed May 22 11:15:48 2013, 美东)
以他的水平,只要不怕穷,在国内应该可以出成果
发信人: bobpop(bobo), 信区: STPC
标 题: 讣闻1例:怀念黄渝——一位科大数学怪才在美国的经历
发信站: 瀚海星云 (2008年12月18日03:10:42 星期四), 站内信件 WWWPOST
讣闻1例:怀念黄渝——一位科大数学怪才在美国的经历06-12-17 18:28 发表于:
《皖
军同盟》 分类:未分类
http://www.tellnet.com.cn/articleview/2005-1-11/article_view_5239.htm
怀念黄渝——一位科大数学怪才在美国的经历 发布日期:2005-1-11 19:35:36 发

者:[bobo] 来源:[本站] 浏览:[ 106] 评论:[ 0]
字体:大 ... 阅读全帖
c********n
发帖数: 1793
24
J.C. Penney Stock Sinks to 12-Year Low
By Paul Ausick September 25, 2013 10:35 am EDT

Struggling department store chain J.C. Penney Co. Inc. (NYSE: JCP) marches
on down the path to oblivion. The stock was down about 13.5% in the first
hour of Wednesday trading and has already put up (down?) a new 52-week low.
Yesterday the store said it planned to hire 35,000 temporary employees for
this year’s holiday season. The company did not say how many seasonal
workers it hired last year. Having ret... 阅读全帖
b*s
发帖数: 82482
25
我也懒得详细说哈金了,给你贴个review吧
John Updike写的
Books
Nan, American Man
A new novel by a Chinese émigré.
by John Updike December 3, 2007
Ha Jin
Ha Jin
A critic cannot but be impressed by the courage and intellect of the Chinese
-American writer Ha Jin. Born in 1956 of parents who were both military
doctors, he volunteered for the People’s Liberation Army at the age of
fourteen and served five and a half years, near the northeast border with
Russia. He began to take a keen interest in reading in his late te... 阅读全帖
wh
发帖数: 141625
26
来自主题: LeisureTime版 - 见到任璧莲
那你还挺有共鸣。你觉得缺陷是什么?我记不清细节,只记得故事挺拖,也不觉得语言
好。bos说语言好,还拉出john updike——又是他——作证。我把updike赞哈金的文章
贴在下面。我后来又看了他的war trash,觉得挺迎合西方政治的。
发信人: bos (Bart), 信区: LeisureTime
标 题: Re: 中日作家“刺刀见红”争夺本届诺贝尔文学奖
发信站: BBS 未名空间站 (Fri Oct 5 15:39:58 2012, 美东)
我也懒得详细说哈金了,给你贴个review吧
John Updike写的
Books
Nan, American Man
A new novel by a Chinese émigré.
by John Updike December 3, 2007
Ha Jin
Ha Jin
A critic cannot but be impressed by the courage and intellect of the Chinese
-American writer Ha Jin. Born in 1956 of parents w... 阅读全帖
n***d
发帖数: 8857
27
Tuesday August 23, 2011 7:34 am PDT by Eric Slivka
Over the past several months, we've made several mentions of commercial
airlines testing the iPad as a replacement for flight bags used by pilots.
The testing programs have been looking to replace bulky and heavy flight
bags full of navigational charts and other materials with iPads in order to
reduce the weight of pilots' bags and save fuel on flights.
United Airlines today announced that it has gone a step further, committing
to a full transit... 阅读全帖
a**a
发帖数: 416
28
来自主题: Mathematics版 - (zz)Heroes in My Heart (55)
发信人: ukim (X人), 信区: Science
标 题: Heroes in My Heart (55)
发信站: BBS 水木清华站 (Thu May 30 10:30:00 2002)
说几个和监狱有关系的事情,做数学这个东西的确不同于很多学科,只要有一个场所可
以供以静坐,有纸笔可以演算,这个世界的一切都无所谓。
最最著名的故事就是关于Leray的事情,他是法国Bourbaki学派的创始人之一。最初的时
候,他做的是分析,在流体力学和力学方面卓有贡献。后来二战爆发,Leray作为法国的
军官参战,40年的时候,被德国人抓到了集中营里。德国人在战争方面对于科技的重视
使得他们对每一个数学家和物理学家都是很关注的,而Leray做的是分析,很有可能被德
国人关起来去做各种各样的用来杀人的弹。为了避免这件事情的发生,他就以代数学家
自居,在狱中的时候依然努力的做研究,出狱的时候,发表他的那套对后世影响至深的
层论(Sheaf Theory)。
还有一个关于S.Lie的传说,这个人就是李群的那个Lie.S.Lie当年普法战争的时候呆在
法国,由于普鲁士口音太重,被法国
h*******r
发帖数: 1083
29
来自主题: Mathematics版 - 研究中的一个问题,牛人帮忙!
给定一个流形(或者scheme,或者Riemann surface),和上面的两个向量丛E和F,则从E
到F的n阶线性位分算子构成一个locally free的sheaf,也相当于一个向量丛。我想知道
,关于这个“微分算子丛”的结构,有什么结果么?
谢谢
J*****n
发帖数: 4859
30
来自主题: Mathematics版 - 研究中的一个问题,牛人帮忙!

从E

1st, how do you define the differential operator between two different vector
bundles?
2nd, locally free sheaf can't ensure the vector bundles, because it can be
infinitely generated!
c****e
发帖数: 2097
31
来自主题: Mathematics版 - 说说数学书吧?
read this too, sheaf blahblah
S*********g
发帖数: 7653
32
来自主题: Mathematics版 - 如何学习数学?
代数几何,关键是搞懂一些例子吧。不懂抽象的东西实际上是不懂具体的例子
搞懂coherent sheaves on P^1(naive),P^2(这个例子是simple but not naive). 里
面的各种construction,都仔细算出来,并不难吧,多项式环的东西人人都会算吧。
Roughly speaking,个人感觉代数几何就是 linear algebra + sheaf(descent),如果
考虑更常见的:i.e. coherent sheaves on smooth noetherian quasi projective
variety.那就是finite dimensional linear algebra了。只要“精通”线性代数,耐
心捯饬,总能搞清楚
不过感觉时间不好说,代数几何学了好多年了,感觉自己“真懂的”东西还很少,一般
都是看一篇文章,算一个东西,用到了就去翻Hartshorne,以前耗费了一些时间去“钻
”这本书,现在觉得没什么必要,看过的玩意只要不用就忘了,没忘也没真懂。
个人的一些愚见
h***i
发帖数: 3844
33
发信人: bobpop(bobo), 信区: STPC
标 题: 讣闻1例:怀念黄渝——一位科大数学怪才在美国的经历
发信站: 瀚海星云 (2008年12月18日03:10:42 星期四), 站内信件 WWWPOST
讣闻1例:怀念黄渝——一位科大数学怪才在美国的经历06-12-17 18:28 发表于:
《皖
军同盟》 分类:未分类
http://www.tellnet.com.cn/articleview/2005-1-11/article_view_5239.htm
怀念黄渝——一位科大数学怪才在美国的经历 发布日期:2005-1-11 19:35:36 发

者:[bobo] 来源:[本站] 浏览:[ 106] 评论:[ 0]
字体:大 中 小
Huang Yu passed away in a car accident on Dec 24th. He lived in Kearny,
NJ.
It happened at around 4 am when he was on his way to work to deliver
newspapers. He had ... 阅读全帖
X******2
发帖数: 5859
34
http://blogs.ethz.ch/kowalski/2013/05/21/bounded-gaps-between-p
And so it came to pass, that an almost millenial quest found a safe resting
place…
Like all analytic number theorists, I’ve been amazed to learn that Yitang
Zhang has proved that there exist infinitely many pairs of prime numbers ell

So, how did he do it?
Well, since the paper just became available, I don’t have anything
intelligent to say yet on the new ideas that he introduced (but ... 阅读全帖

g**3
发帖数: 35
35
烟花的数学,基本上是自学的。以她学习的时间之短,对比现在的水平,就很让人敬佩!
除此之外,她面对甚至嘲笑困难的勇气,让我等汗颜!
对于做数学的环境,她说:“Jean Leray 在监狱写出伟大的 sheaf theory,一切都是浮
云,环境根本影响不了数学。天上的东西不会由地上的东西决定,这是基本的事实,每
个人都应该为自己的数学工作负责 。”
e*******n
发帖数: 4912
36
1.在这个系列里我打算写一些我在各种文章和书中看到的八卦
希望能博大家一笑

有一次littlewood问hardy,为什么他每次到一个旅馆就会把镜子用毛巾盖起来?
回答是:因为他长得太丑了
2.Hadamard,Jacques去意大利Bologna开1928年国际数学家大会,期间要坐火车去一个地

车厢里有很多人在聊天,他觉得十分累,就出了道困难的数学题,众人思考这道题,
车厢里马上安静下来了,于是Hadamard就可以睡觉了
3.Bourbaki是一个法国数学家的集体代名词

Bourbaki的第一篇文章发表在comptes Rendus(法国科学院的一个杂志)上
在1949年Journal of symbolic logic上的一篇文章
"Foundations of mathematics for the working mathematican"
中,Bourbaki教授的地址是University of Nancago
一个杜撰的地址,分别是Nancy和Chicago(weil在那里)前后组合

1940年,Boas,Ralph(MR的主编)曾经在Encyclopa... 阅读全帖
y****d
发帖数: 432
37
【7】【Springer】GTM美国研究生数学书籍全集
LIST:
1 Introduction to Axiomatic Set Theory, Gaisi Takeuti, W. M. Zaring
2 Measure and Category, John C. Oxtoby
3 Topological Vector Spaces, H.H. Schaefer, M.P. Wolff
4 A Course in Homological Algebra, Peter Hilton, Urs Stammbach
5 Categories for the Working Mathematician, Saunders Mac Lane
6 Projective Planes, Hughes, Piper
7 A Course in Arithmetic, Jean-Pierre Serre
8 Axiomatic Set Theory, Gaisi Takeuti, Zaring
9 Introduction to Lie Algebras and Representation The... 阅读全帖
wh
发帖数: 141625
38
来自主题: _WHandFriends版 - John Updike论哈金
【 以下文字转载自 LeisureTime 讨论区 】
发信人: bos (Bart), 信区: LeisureTime
标 题: Re: 中日作家“刺刀见红”争夺本届诺贝尔文学奖
发信站: BBS 未名空间站 (Fri Oct 5 15:39:58 2012, 美东)
我也懒得详细说哈金了,给你贴个review吧
John Updike写的
Books
Nan, American Man
A new novel by a Chinese émigré.
by John Updike December 3, 2007
Ha Jin
Ha Jin
A critic cannot but be impressed by the courage and intellect of the Chinese
-American writer Ha Jin. Born in 1956 of parents who were both military
doctors, he volunteered for the People’s Liberation Army at the age of
fo... 阅读全帖
1 (共1页)