F*******n
发帖数: 8 | 1 ◇◇新语丝(www.xys.org)(xys.dxiong.com)(xys.3322.org)(xys.xlogit.com)◇◇
田刚是一个非常不诚实的人
加州大学Santa Cruz分校数学教授Andrey Todorov信件（译文）
关于卡拉比－丘流形模空间无阻碍性的证明历史，1980年 Bogomolov提出了
证明典则类为零的簇的模空间无阻碍性的方法。他的论证非常漂亮，可是只对超
凯勒情形有效。我从1986年开始研究卡拉比－丘流形模空间无阻碍性的问题。同
年我在MPI公布了预印本。1986年12月，我收到田刚的来信，说他也发现了同样
的公式，就是现在所称的Tian- Todorov公式。
1992年我到普林斯顿访问，遇到Nadal（萧荫堂的一个学生）。我从他那里
得知，田刚是一个非常不诚实的人。他告诉我，田刚在写自己的那篇卡拉比－丘
流形模空间之前，就知道了我所发表的预印本。Nadal告诉我他亲眼看到田刚在
哈佛的时候，研读我的预印本。事实上，我的文章中包含了更多的结果。
Kazdan教授曾问我对于田刚的看法。我告诉他，田刚还算是个有能力的数学
家。可是Kazdan却告诉我... 阅读全帖 |
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D**o
发帖数: 2653 | 2 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 |
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L*m
发帖数: 235 | 3 近十年JAMS上的华人作者，JAMS上的文章相对更多，搜的没那么仔细，有可能不完全。
大家也看看有没有漏的
2015
Kähler-Einstein metrics on Fano manifolds. I: Approximation of metrics
with cone singularities
Xiuxiong Chen, Simon Donaldson and Song Sun.
Kähler-Einstein metrics on Fano manifolds. II: Limits with cone angle
less than 2π
Xiuxiong Chen, Simon Donaldson and Song Sun.
Kähler-Einstein metrics on Fano manifolds. III: Limits as cone angle
approaches 2π and completion of the main proof
Xiuxiong Chen, Simon Donaldson... 阅读全帖 |
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x**8
发帖数: 1939 | 4 觉得convex analysis里面duality的那套东西很妙， |
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R**********n
发帖数: 523 | 5 https://www.msri.org/workshops/804
Elementary Introduction to the Langlands Program, by Edward Frenkel
September 21,2015 - September 22,2015
Location: MSRI: Simons Auditorium
Organizers
Edward Frenkel (University of California, Berkeley)
Speaker(s)
Edward Frenkel (University of California, Berkeley)
Description
One of the most fascinating and important developments in mathematics in the
last 50 years is the "Langlands Program", a collection of ideas that
provides a grand unification of many area... 阅读全帖 |
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x********i
发帖数: 905 | 6 http://iccm.mcm.ac.cn/dct/page/1
Invited Lectures
Group 1
Fan Qin: Cluster algebras and monoidal categorification
Fang Li: Positivity of acyclic sign-skew-symmetric cluster algebras via
unfolding method and some related topics
Cheng-Chiang Tsai: An attempt for affine Springer theory
Li Cai: The Gross-Zagier formula: arithmetic applications
Ming-Hsuan Kang: Geometric zeta functions on reductive groups over non-
archimedean local fields
Huanchen Bao: Canonical bases arising... 阅读全帖 |
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T*********r
发帖数: 11175 | 7 both Matt and Scott are extremely smart.
Matt knows more phenomenology than Scott and
he is more famous. He may be famous for string
theory like using AdS/CFT duality to solve QCD
confinement but he was trained in pheno.
I remember he was correcting someone's
statement on top discovery on a conference. |
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T*********r
发帖数: 11175 | 8 师兄不敢当
我跟matt可撤不上关系
他跟我两任老板到都有合作,和我国内的老师有些师承
估计这些喜欢QCD的人都比较喜欢Technicolor之类的
Matt还是很早pointed out Technicolor/RS duality的人
scott跟michael dine的时候估计也搅和过
dynimical susy breaking的business
应该对technicolor这类理论也比较有好感
其实Scott做的可能更collider一点
multijet,spin determination之类都挺有用的
你们Rutgers最大的优势是离princeton比较近
现在Nima把他的那帮人都带去了
再加上liantao带的几postdoc,Itay, Matt Reece他们
整个那片的collider pheno还是非常active的
多跟他们亲近亲近也有好处 |
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w****1
发帖数: 4931 | 9 That doesn't mean the duality is wrong -- it's just that we cannot solve
string theory in AdS at strong coupling. We talk about things we cannot
compute all the time, and I don't see why you feel so uncomfortable about it
.:) As I said, the only way you can hope to solve a strongly coupled system
analytically, is either the system has a weakly coupled dual description, or
the system is integrable for some reason.
In the 80s people would think that there is no way we could ever come up
with a non |
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w****1
发帖数: 4931 | 10 This is not a prediction of string theory. It is a prediction of GR, based
on the idea that a "sufficiently strongly"
coupled system has a weakly coupled gravity dual. Of course, it is inspired
by string theory, since the only
exact AdS/CFT duality is constructed in the context of a known string theory
. Further, the originally proposed
viscosity bound can be violated. The exact viscosity bound is achieved when
the dual gravity theory is pure
Einstein gravity, with no higher derivative correctio |
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w****1
发帖数: 4931 | 11 a 0-brane is pointlike in space (and extends in time, of course). a (-
1)-brane would be an instanton. Yes, a 1-brane is just like a string.
Sometimes, it is THE string, sometimes, not.
Now let me answer your second question. Does a brane have internal
structure? Yes and no. A brane can in some sense be made of out strings,
but a string can also be made out of branes. This is called duality. Now
none of these statements are very precise. So let's formulate some
precise questions. What is the gro |
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t**g
发帖数: 522 | 12 同意, wave particle duality的描述早就过时了，不知道现在的教科书改没该. wave
particle is a 1930 and 1940's stuff.
QFT is the language to describe, not thinking an object is both wave and
particle, and like two sides of a coin. |
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f*******7
发帖数: 93 | 13 1. Journal of Optics Volume 20 Number 3
A Aspect et al 1989 J. Opt. 20 119
“Wave particle duality for a single photon”
A Aspect, P Grangier and G Roger
2. “Two-photon double-slit interference experiment”
C. K. Hong and T. G. Noh »View Author Affiliations
Journal of Optical Society of America B, Vol. 15, Issue 3, pp. 1192-1197 (
1998)
毕业，没有学校帐号了，万分感激～～～ ORZ
请发到 f****[email protected] |
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E*******1
发帖数: 3464 | 14 Yes, you are really a FAN of quantum. Schrodinger happened to find a wave-
like solution that Born first proposed, that's his only contribution. Yes,
this contribution is big, but quite isolated and not recognized well for a
while; Another example is Wave-particle duality, de Broglie discussed it in
a 2-page phd thesis. I bet these two are kind of most important discoveries
in quantum, but they are not top-level theorists, actually the merit and
fundamental theories are wrapped up by others, tho... 阅读全帖 |
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发帖数: 1 | 15 【 以下文字转载自 Military 讨论区 】
发信人: tranquilan (zhutou), 信区: Military
标 题: 中国科学家吴岳良发表物理学终极理论论文，为爱因斯坦之谜打开新窗口
发信站: BBS 未名空间站 (Sat Jan 27 14:30:24 2018, 美东)
中国科学家吴岳良发表物理学终极理论论文，为爱因斯坦之谜打开新窗口
据中科院官方网站报道，中国科学院院士吴岳良在物理学大统一理论上实现重要突破。
报道称，吴岳良在揭秘爱因斯坦统一场论的研究中取得突破，创建了超统一场论（
hyperunified field theory）。该理论受相对论性狄拉克旋量理论、爱因斯坦广义相
对论、杨-米尔斯规范理论和大统一理论的启发，并基于吴岳良前期发展的引力量子场
论的研究成果，为揭示爱因斯坦统一场论理念中的不解之谜，探索终极统一理论打开了
一扇新窗口。
中国科学院院士吴岳良
众所周知，中国在物理学终极理论领域，同世界顶级水平还存在着较大差距，那么，吴
岳良院士的理论究竟处于什么水平？
吴岳良院士这次的研究成果是发表在《欧洲物理杂志C》上。据观察者网查询，《欧洲
... 阅读全帖 |
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s**a
发帖数: 8648 | 16 simmel和durkheim都在解决社会如何可能的问题，但simmel是从individualism的角度
出发，除了结构，也说明独立的个人靠什么来联系。durkheim虽然建立了个人和社会的
二元对立，但是主要的意思是个人必须通过集体仪式参与来给mental categories提供
社会意义。一个是把primacy给了个人，一个是说没有能脱离社会存在的个人。可以批
判durkheim建立了一个problematic duality，但是在durkheim那里，primacy给的是社
会，是生物人的copresence。
所以structure和agency的问题，也有人看作是社会和个人关系的问题。但是这个看法
不对，我觉得。因为个人的行动意义是社会带来的。我们不能把primacy给予生物体个
人。
解决structure和agency的问题，当然可以像alvarado说的，认为这个二元对立本身就
是死胡同，因为两者本来就不可取一，甚至不可分。也可以参看andrew abbott的看法
，认为social actor不是研究的单位，social action才是，这样，需要解释的是 |
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q******u
发帖数: 46 | 17 这个不难,就是个weak duality,dual<=primal
只需要证明对任意x0,y0, min_z f(x0,y0,z)<=p.特别的，令(x0,y0)=argmax_(x,y)min
_z f(x,y,z), 有d<=p
设zp是p的optimal point。对任意x0,y0：
min_z f(x0,y0,z)<=f(x0,y0,zp)<=max_(x,y) f(x,y,zp)=p
证毕 |
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J******d
发帖数: 506 | 18 能不能解释一下weak duality?
min |
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s***e
发帖数: 267 | 19 My understanding is that arbitrage theorem only utilizes the duality theorem
in linear programming, and it does not involve stochastic calculus... |
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r****d
发帖数: 1473 | 20 现在读Schachermayer的文章发现非常困难，以前没有接触过duality,convex analysis
.
cavaliere：如果我想做这方面的工作，需要学习哪些方面的东西，请您介绍几本数学
书吧. |
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E*******1
发帖数: 3464 | 21 顺道问一下。除了这个书还有什么理论基础比较重要的？这个书说白了就是risk
neutral理论用在option pricing 上面，虽然非常成熟经典的理论，但鄙人听说什么
optimal portfolio choice，什么duality function 用在optimal investment的研究
是当下进行的比较热门的项目，不知街上要不要用? |
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f*******n
发帖数: 588 | 22 ☆─────────────────────────────────────☆
KongBai (空白) 于 (Thu Jan 5 20:14:41 2006) 提到:
那个duality of structure的图，各个factor之间的关系？
谢谢！
我不是学这个的，临时要用，看的糊里糊涂。
☆─────────────────────────────────────☆
alvarado (难得不糊涂) 于 (Thu Jan 5 22:02:59 2006) 提到:
rules/resources
structuring, structured
dynamic
☆─────────────────────────────────────☆
XGG (XGG) 于 (Mon Jan 9 21:54:37 2006) 提到:
As my understanding, it is a subjective way to understand the social structu
re -- how it forms, how it performs |
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l*****7
发帖数: 153 | 23
The article discusses AI as a theoretical end versus neuroscience as an
empirical end. The author claims that the biological brain is structured
with "loops", which is universal across different levels and is completely
different from the conventionally used feed-forward structure. Another
issue is that the brain is not separable in terms of function and
implementation. This is different from the situation in AI theories that
usually the duality in a computer is assumed in which its physical an... 阅读全帖 |
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c***z
发帖数: 6348 | 24 http://www.quora.com/How-long-will-coders-salaries-remain-as-hi
与数据科学的关系不大，与数据科学家的关系比较大。文章分析了一直困扰我的一个问
题：为什么老板都是外行？答案是：我们被外行殖民了。
This is an odd question, because software engineers' salaries aren't that
high. I wrote a blog post on this, here: Software engineer salaries aren't
inflated-- at least, not for the 99%. Relatedly, I wrote a Quora answer on
the topic: see Michael O. Church's answer to Why do software engineers make
so much?
That said, I certainly have no illusions about the impossibili... 阅读全帖 |
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C******g
发帖数: 2930 | 25 PSone Classics PS3 / PSP
Final Fantasy VII ($9.99)
Medal of Honor ($5.99 )
Add-on Game Content
Dynasty Warriors: Strikeforce Pack #1 (free)
Game Videos
UNCHARTED 2 E3 Trailer
Hustle Kings E3 Trailer
Eye Pet E3 Trailer
Fat Princess Launch E3 Trailer
Final Fantasy VII Trailer
Gravity Crash Trailer
Heavy Rain Trailer
inFAMOUS: Duality Trailer
PixelJunk Shooter E3 Trailer
Ratchet and Clank Future: A Crack in Time E3 Video
Video Store Sizzle Reel
wipEout HD Fury Add-on Trailer
DISSIDA FINAL FANTASY T |
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w*******y
发帖数: 60932 | 26 Get 7 awesome games + Bonus content at Your Own Price!
Yet another Steam Activatable Indie Bundle
Includes:
Zombie Shooter 2
inMomentum
Hacker Evolution: Duality
Saira
Your Doodles Are Bugged!
Have At It!
Link:
http://www.indiegala.com/
|
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w*******y
发帖数: 60932 | 27 indiegala.com
$1.00-$3.99:
Games - Critical Mass, Fortix 2, Bunch of Heroes
Albums - Jack Butler, Giraffe, The Numbers
$4.00-$6.99:
Games - Roboblitz, Greed Corp + the above
Albums - Casey Lalonde: Skitter EP, Casey Lalonde: Thank you, Robot Science
Square + the above
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Evolution: Untold, Your Doodles are Bugged, InMomentum + the above
Albums - Robot Science: Doodads + the above
|
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s*****r
发帖数: 1032 | 28 I know we have dwelt on this topic for long enough, but just couldn't
help it when I saw this story:
...She got straight As. Skipped 5th grade. Perfect SAT score. Varsity
swim team. Student council. Advanced level piano. Harvard early
admission. An international post with the Boston Consulting Group in
Hong Kong before returning to the U.S. for her Harvard MBA. Six figure
salary. Oracle. Peoplesoft. Got engaged to a PhD. Bought a home. Got
married...
=============================================... 阅读全帖 |
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