-
Brunn-Minkowski inequality
In this short note, I posed a conjecture on Brunn-Minkwoski inequality and expla…
-
Pesudo differential opertor and singular integral
I already understand this material 3days ago but it is a little difficult for me…
-
Symplectic geometry
1. Introduction This is the first note of a series of notes concert on semiclass…
-
Some interesting problems
There are some interesting problem, I post them at there in case I forget them. …
-
A glimpse to the general theory
1. Introduction We have talked about a very basic result in singular integral, i…
-
Periodic orbits and Sturm–Liouville theory
I thinks there is some problem related to the solution of a 2 order differential…
-
Calderon-Zygmund theory of singular integrals.
1. Calderon-Zygmund decomposition The Calderon-Zygmund decomposition is a key st…
-
The large sieve and the Bombieri-Vinogradov theorem
-1.Motivation- Large sieve a philosophy reflect as a large group of inequalities…
-
Linear metric on F2, free group with two generator.
I may have made a stupid mistake, but if not, we could construct a metric by pul…
-
Almost orthogonality
Motivation and Cotlar’s lemma We always need to consider a transform $lat…