bio | website | math.stanford.edu/~rmbellov |
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location | ||
age | ||
visits | member for | 4 years, 6 months |
seen | 10 hours ago | |
stats | profile views | 1,753 |
Dec 24 |
comment |
Shape of snowflakes
I don't like your random model: it seems much more reasonable to fix a probability p and at time t, attach a new hexagon at every available lattice point with probability p. Assuming a fair amount of water in the air, water crystallizing at one vertex should be independent of water crystallizing at other vertices (to a first approximation). |
Oct 8 |
awarded | Yearling |
Mar 18 |
awarded | Good Answer |
Mar 18 |
awarded | Nice Answer |
Mar 18 |
awarded | Nice Question |
Nov 2 |
awarded | Nice Answer |
Oct 8 |
awarded | Yearling |
May 11 |
awarded | Popular Question |
May 8 |
awarded | Commentator |
May 8 |
comment |
What's the difference between a real manifold and a smooth variety?
Don't these all illustrate the differences between real and complex manifolds, rather than between real manifolds and smooth complex varieties? |
Apr 25 |
awarded | Organizer |
Apr 25 |
revised |
triangulations of torus, general, and Euler number. (Hopefully more interesting/relevant)
edited tags |
Mar 21 |
comment |
Chinese Remainder Theorem for rings: why not for modules?
Tensor the map $R/(I_1...I_n)\rightarrow R/I_1\times...\times R_I_n$ over $R$ with $A$. |
Feb 23 |
awarded | Fanatic |
Feb 15 |
comment |
visualizing what's going on in based homotopy theory, et al.
For c), have you looked at chapter 4 of Hatcher's book? Everything there is very geometric. |
Feb 14 |
answered | Homeomorphism onto a closed subset of a scheme that isn't a closed immersion |
Jan 24 |
awarded | Nice Answer |
Jan 24 |
answered | Why does the group law commute with morphisms of elliptic curves? |
Dec 6 |
awarded | Enthusiast |
Dec 4 |
comment |
Why is Riemann-Roch an Index Problem?
A lot is brushed under the rug, like carrying out all of these steps on more than a formal level. Also, things like metrics on line bundles are hidden in the definition of the adjoint and the defintion of c_1. |