supported by National Natural Science Foundation of China(Grant Nos.11401432 and11571172);the second author is supported by National Natural Science Foundation of China(Grant No.11371035)
In this paper,we try to describe the relationship between the differentiability of a quasisymmetric homeomorphism and the local Hausdorff dimension of the quasiline at a point.
Supported by National Natural Science Foundation of China(Grant Nos.11201222,11171146);National Basic Research Program of China(973 Program,2013CB834100);a program PAPD of Jiangsu Province,China
With the variational method introduced by Mather,we construct a mechanical Hamiltonian system whose α function has a flat F and is non-differentiable at the boundary F.In the case of two degrees of freedom,we prove t...
supported by CAPES-Brasil;supported by FAPESP-Brasil(Grant No.2010/19734-6)
This contribution gives results on the action of the Laplace-Beltrami derivative on suffi- ciently smooth kernels on the sphere, those defined by absolutely and uniformly expansions generated by a family of at least c...
Supported by the National Natural Science Foundation of China
The differentiability of a norm of a Banach space may be characterized by its unit sphere.This paper generalizes these geometric conditions of norm’s differentiability to the case of a regular locally Lipschitz funct...