bio  website  shef.ac.uk/nps 

location  Sheffield  
age  48  
visits  member for  4 years, 5 months 
seen  3 hours ago  
stats  profile views  7,637 
I am an algebraic topologist, based at the University of Sheffield.
10h

comment 
How to prove a certain theorem about algebraic function fields
You should make your question selfcontained, so that people can understand it without looking at the book. 
11h

answered  Must we know $MU^*(X)$ in order to compute $Ell^*(X)$? 
15h

comment 
Problems concerning meromorphic 1 form on Riemann surface
This question would be more appropriate at math.stackexchange.com. 
Mar 21 
revised 
Number of elements in a fiber
Spelling in title 
Mar 20 
awarded  Good Answer 
Mar 19 
answered  homology of a mapping spectrum 
Mar 9 
answered  Properties of coefficients of ring spectra 
Mar 8 
awarded  Nice Answer 
Mar 7 
comment 
permutation action on cohomology of Stiefel manifolds
@RenShiquan: what have you tried? 
Mar 6 
comment 
Maryam Mirzakhani's works
Indeed, that looks like a nice article with beautiful pictures. Now I just need to find a couple of hours to learn Farsi ... 
Mar 5 
answered  permutation action on cohomology of Stiefel manifolds 
Mar 4 
awarded  Nice Answer 
Mar 4 
awarded  Enlightened 
Mar 4 
awarded  Nice Answer 
Mar 3 
answered  Completed and uncompleted operations for Morava $E$theory 
Mar 3 
answered  contractible configuration spaces 
Feb 24 
answered  Loop space structures on $RP^\infty$ 
Feb 23 
comment 
Coboundary of a cupproduct
I don't think that this makes sense. Note that $\partial_p\alpha$ lies in $H^*(X,A)$ and $\beta$ lies in $H^*(A)$, and there is no natural product $H^*(X,A)\otimes H^*(A)\to H^*(X,A)$ so $\partial_p\alpha\cup\beta$ is not defined. 
Feb 18 
asked  Is this approach to the combinatorics of knots well known? 
Feb 17 
comment 
Formal group law over $\mathbb{F}_p$
Bakuradze has just put a proof on the arxiv at arxiv.org/pdf/1502.04152v1.pdf. This may just be a coincidence; he does not refer to the discussion here, I don't know if he has seen it. 