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bio website ncatlab.org/nlab/show/…
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age 93
visits member for 1 year, 11 months
seen 9 hours ago

I am a postdoc in mathematics, but have my degree in theoretical physics. My work is about mathematical structures motivated from quantum field theory and string theory. For more see my personal web on the nLab.


12h
awarded  Disciplined
1d
awarded  Student
Nov
12
comment Are commutative C*-algebras really dual to locally compact Hausdorff spaces?
Thanks for the alert. That was maybe my bad. It seems the actual content secton in the nLab was right, but the Idea-section was wrong. I have fixed it now.
Sep
25
awarded  Announcer
Sep
24
awarded  Autobiographer
Sep
10
comment Is computer science a branch of mathematics?
ncatlab.org/nlab/show/computational+trinitarianism
Jun
2
comment Characteristic cohomology class of 4-manifold with boundary
Just to amplify the point of Henry Horton's reply below: a characteristic element is something defined for a bilinear form (ncatlab.org/nlab/show/characteristic+element+of+a+bilinear+form). So for every choice of bilinear form on cohomology that you come up with, there is a concept of characteristic cohomology class. The intersection in cohomology-relative-boundary that Henry Horton gives is the most obvious choice, but depending on your applications there might be a different one.
May
22
comment Is every complex (smooth) manifold a scheme?
This question is GAGA ncatlab.org/nlab/show/GAGA Check out ncatlab.org/nlab/show/analytification#Existence .
Apr
3
comment Why are the algebras of the associative operad unital?
Thanks for catching that. Indeed, somebody edited carelessly. I have briefly fixed it now. But of course the entry is still stubby and looking for somebody to expand it further. If you have time and energy, feel invited.
Jun
30
comment A example of a monoidal non symmetric category of $R$-bimodules
Buschi Sergio, it seems that in your second edit you are thinking that bialgebras naturally come with bimodules. This is not so, the "bi" refers to something different in both cases.
Apr
25
comment What is the homotopy colimit of the Cech nerve as a bi-simplical set?
Akhil gave excellent replies. As to where to find this in Lurie's book: around 7.2.1.14, 7.2.1.15. A digest is here: ncatlab.org/nlab/show/…
Jan
16
awarded  Supporter