## Friday, August 28, 2015

### BRIAN STUTLAND vix surge , gamma change @Michael_Khouw street frunt running oil bottom grasso mexio oil hedge at 45

those who did not buy protection before now buy protection with market orders

Michael C. Khouw

## @Michael_Khouw

Market Strategist, Business News Contributor for CNBC and

### street is front running the fundamenal to find where the bottom is, michael , 理解一个物理系统最重要的方法就是去寻找这个系统的对称性，但通常来讲，系统真空态的对称性与激发态的对称性是不一样的，前者要少，所以造成了对称性自发破缺，这就是Higgs机制的来源。

2014-08-26 回复

Why K-theory "不美" ? And what do you mean by "对偶意义并不是很大" ?
2014-08-26 回复

2014-08-26 回复

I do not make comments on your feelings on the Thom isomorphism. For "这一部分的工作虽然看起来漂亮但是没有新的洞见" maybe you can take a look at Milnor conjecture and A^1 homotopy theory. K-groups are also essential in several aspects in number theory (say, the Fesenko school).
2014-08-26 回复

2014-08-26 回复

2014-08-26 回复

2014-08-26 回复

## Thursday, August 27, 2015

### The Troublesome Economist: August 2013

instecon.blogspot.com/2013_08_01_archive.html
Aug 7, 2013 - “the E.C.B. will discover that just pumping in liquidity will not suffice to ... says William R. Rhodes, former senior vice chairman of Citigroup.

Bridgewater Associates创始人达里奥

## Wednesday, August 26, 2015

### einstein Energy and momentum vector as tangent to worldline, 流體粒子在流線上任一點之速度向量，為流線上此點之切線（tangent）方向。

[DOC]流體力學講義

P

DF]Motion of Spin 1/2 Massless Particle in a Curved Spacetime ...
arxiv.org/pdf/0802.2450
arXiv
by AT Muminov - ‎2008 - ‎Cited by 1 - ‎Related articles
massless particle vector n− =˙x tangent to worldline of the particle has zero length and can not be normed by the same way as timelike vector. We need second ...

### Motion of Spin 1/2 Massive Particle in a Curved Spacetime

arxiv.org/pdf/0709.4607
arXiv
by AT Muminov - ‎2007 - ‎Cited by 2 - ‎Related articles
Sep 28, 2007 - unit vector n0 = ˙x tangent to worldline of the particle by spatial orthonormal frame { nα} whose vectors are orthogonal to n0. Frame { nα} is a ...

### [PDF]4-vectors, especially energy / momentum - Ken Intriligator

keni.ucsd.edu/w15/lec3_2.pdf
Mar 2, 2015 - ... + (p2/2m) − (p4/8m3c2) + .... • Energy and momentum vector as tangent to worldline, and energy-momentum hy- perbola for different frames.

### [PDF]arXiv:0802.2450v1 [gr-qc] 18 Feb 2008 M otion ... - inSPIRE

inspirehep.net/record/779592/files/arXiv:0802.2450.pdf?version=2
Feb 18, 2008 - m assless particle vectorс =_x tangent to worldline ofthe particle has zero length and can not be norm ed by the sam e way as tim elike vector.

### [PDF]SR - Cosmo

cosmo.torun.pl/foswiki/pub/Cosmo/SRandGR/sr_120523.pdf
scalar speed β to spacetime vector = tangent to worldline. 0 · M · Λ · β · cal · c · Σφ · γ · t+ · x− · z · xy · tc · Pen · β+ · PB · tw · uµ · pµ · p · E=m · E=p · SR. SR+ϵGR.

### File:Four-velocity.svg - Wikimedia Commons

https://commons.wikimedia.org/.../File:Four-velocit...
Wikimedia Commons
Jul 13, 2011 - ... $t'$\001 4 0 0 50 -1 0 20 5.1487 2 300 2670 4491 5696 tangent to worldline\001 4 0 0 50 -1 0 32 0.0000 2 435 915 1920 4395 $x'$\001 ...

### File:Special relativity lecture.pdf - Wikimedia Commons

https://commons.wikimedia.org/.../File:Special_rela...
Wikimedia Commons
Jul 10, 2011 - ... extend from scalar speed $\beta$ to spacetime vector = tangent to worldline } \end{minipage} \rule{2ex}{0ex} \begin{minipage}[b]{60mm} ...

### phymath999

phymath999.blogspot.com/
6 days ago - Energy and momentum vector as tangent to worldline... Einstein's Genie:there is a velocity 4-vector, tan... harvard chchang 質量是一個粒子四維 ...

## Friday, August 21, 2015

### 动量守恒定律在伽利略变换下保持不变。 如果有两个质点质量分别为和，在S系中速度分别为和，若没有外力作用，则动量守恒，

8.1 经典力学的相对性原理和时空观

1．伽利略坐标变换式

2．伽利略速度变换式

如果有两个质点质量分别为，在S系中速度分别为，若没有外力作用，则动量守恒，有

3．伽利略变换下的加速度

根据牛顿第二运动定律，在两个参照系中质点所受的力

由于所有的牛顿动力学定律都是从动量守恒定律和力的定义推导出来的，所以动力学定律在伽利略变换下保持不变。

PDF]Motion of Spin 1/2 Massless Particle in a Curved Spacetime ...
arxiv.org/pdf/0802.2450
arXiv
by AT Muminov - ‎2008 - ‎Cited by 1 - ‎Related articles
massless particle vector n− =˙x tangent to worldline of the particle has zero length and can not be normed by the same way as timelike vector. We need second ...

### Motion of Spin 1/2 Massive Particle in a Curved Spacetime

arxiv.org/pdf/0709.4607
arXiv
by AT Muminov - ‎2007 - ‎Cited by 2 - ‎Related articles
Sep 28, 2007 - unit vector n0 = ˙x tangent to worldline of the particle by spatial orthonormal frame { nα} whose vectors are orthogonal to n0. Frame { nα} is a ...

### [PDF]4-vectors, especially energy / momentum - Ken Intriligator

keni.ucsd.edu/w15/lec3_2.pdf
Mar 2, 2015 - ... + (p2/2m) − (p4/8m3c2) + .... • Energy and momentum vector as tangent to worldline, and energy-momentum hy- perbola for different frames.

### [PDF]arXiv:0802.2450v1 [gr-qc] 18 Feb 2008 M otion ... - inSPIRE

inspirehep.net/record/779592/files/arXiv:0802.2450.pdf?version=2
Feb 18, 2008 - m assless particle vectorс =_x tangent to worldline ofthe particle has zero length and can not be norm ed by the sam e way as tim elike vector.

### [PDF]SR - Cosmo

cosmo.torun.pl/foswiki/pub/Cosmo/SRandGR/sr_120523.pdf
scalar speed β to spacetime vector = tangent to worldline. 0 · M · Λ · β · cal · c · Σφ · γ · t+ · x− · z · xy · tc · Pen · β+ · PB · tw · uµ · pµ · p · E=m · E=p · SR. SR+ϵGR.

### File:Four-velocity.svg - Wikimedia Commons

https://commons.wikimedia.org/.../File:Four-velocit...
Wikimedia Commons
Jul 13, 2011 - ... $t'$\001 4 0 0 50 -1 0 20 5.1487 2 300 2670 4491 5696 tangent to worldline\001 4 0 0 50 -1 0 32 0.0000 2 435 915 1920 4395 $x'$\001 ...
Jul 10, 2011 - ... extend from scalar speed $\beta$ to spacetime vector = tangent to worldline } \end{minipage} \rule{2ex}{0ex} \begin{minipage}[b]{60mm} ...