1
vote
1answer
258 views
Partial linearization near a hyperbolic fixed point--Classical scattering
I am currently reading the famous article "Universal Properties of Maps on an Interval"
by Collet, Eckmann and Lanford related to the Feigenbaum-Coullet-Tresser universality.
I am …
13
votes
5answers
2k views
What mathematical treatment is there on the renormalization group flow in a space of Lagrangians?
What mathematical treatment is there on the renormalization group flow in a space of Lagrangians?
3
votes
0answers
306 views
Looking for good summer schools on quantum field theory (especially renormalization theory) this summer [closed]
I'm a graduate student and I'm looking for summer schools to attend this summer. Anyone have any suggestions? Thanks!
10
votes
1answer
2k views
Kontsevich’s conjectures on the Grothendieck-Teichmüller group?
Reading Kontsevich's "Operads and Motives in Deformation Quantization", I was wondering about the state of the many conjectures concerning the Grothendieck-Teichmüller group in cha …
4
votes
1answer
456 views
Simple example of renormalization
As far as I understand, the RG theory, or functional RG theory is a mathematical tool for moving in the "scale dimension". The tool can be used for calculation of Feigenbaums const …
14
votes
2answers
1k views
Why don’t existence and uniqueness for the Boltzmann equation imply the same for Navier-Stokes?
As I understand it, Lions and DiPerna demonstrated existence and uniqueness for the Boltzmann equation. Moreover, this paper claims that
Appropriately scaled families of
DiPe …
0
votes
0answers
262 views
What is meant by logarithmic correction? [closed]
is it a way to make a function smooth?
