bio  website  math.berkeley.edu/~cgerig 

location  UC Berkeley  
age  26  
visits  member for  4 years, 6 months 
seen  2 hours ago  
stats  profile views  6,919 
After doing my BS in engineering physics (with experimental research on gravity), I started my PhD in experimental atomic physics. But I quit to do math, and am now a 4th year student of Michael Hutchings.
13h

revised 
Witten's proof of Morse inequalities, question on eigenvalues?
added 47 characters in body 
13h

revised 
Witten's proof of Morse inequalities, question on eigenvalues?
added 10 characters in body 
16h

answered  Witten's proof of Morse inequalities, question on eigenvalues? 
2d

comment 
Is there a generalization of homotopy groups to fractional dimensions
What is a halfdimensional sphere? 
Jul 24 
awarded  Popular Question 
Jul 23 
comment 
$w(\mathbb{R}P^q) = 1$ if and only if $q = 2^k  1$ for some $k$
This question is also very close to this recently asked one (since vanishing SWclasses determine the space being a boundary): mathoverflow.net/questions/212152/… 
Jul 23 
comment 
$w(\mathbb{R}P^q) = 1$ if and only if $q = 2^k  1$ for some $k$
This question is not appropriate for this forum, try: math.stackexchange.com 
Jun 7 
comment 
Perturbation of eigenvalues of some special matrices
I've quickly attempted an interpretation of the OP by adding some background, but this can be made much more precise by giving explicit examples of those "general results". 
Jun 7 
revised 
Perturbation of eigenvalues of some special matrices
my guess at the intended question (since it was closed otherwise) 
Jun 2 
comment 
Flux group of surfaces with genus $g\ge2$
.....Their paper not only gives the reference [3] of Kedra, Remarks on the Flux Group, but says precisely what part of this paper proves triviality (Theorem B). A surface of genus greater than 1 has nonzero Euler characteristic and is aspherical. 
May 27 
comment 
Soft Question: Relationships Between Moduli Space and Objects They Parametrize
Community Wiki? Typically, the dimension of your moduli will be a Fredholm index of some operator, namely the linearization of the equations which define your objects, and this is how the Euler characteristic and more general characteristic classes and whatnot appears. Outside of that, you can build structure on the moduli (such as symplectic form and Riemannian metric) by using the data on your objects. 
May 26 
revised 
Nontrivial finite group with trivial cohomology in prescribed degree
added 171 characters in body 
May 26 
comment 
Interpretation of the monomorphism $H^2(\pi_1(X),\mathbb{Z}) \rightarrow H^2(X,\mathbb{Z})$
This is obtained for $X=BG$ in mathoverflow.net/questions/48489/… 
May 26 
comment 
Nontrivial finite group with trivial cohomology in prescribed degree
True, what I wrote is not the minimal period. It does admit a periodic resolution of that period, which suffices as my intent. 
May 26 
answered  Nontrivial finite group with trivial cohomology in prescribed degree 
May 19 
revised 
actual dimension of concrete moduli space of holomorphic curves vs its virtual dimension
added 307 characters in body 
May 19 
revised 
actual dimension of concrete moduli space of holomorphic curves vs its virtual dimension
clarifications 
May 19 
comment 
actual dimension of concrete moduli space of holomorphic curves vs its virtual dimension
The branch points are in the image; it's the critical values that you're really counting. 
May 19 
comment 
How to learn QFT from mathematical perspective?
Based on the OP's first sentence, his honest interest must be in TQFT, for which @Vectornaut's answer hits. As such, it is really not learning QFT. 
May 19 
revised 
actual dimension of concrete moduli space of holomorphic curves vs its virtual dimension
added 343 characters in body 