Chen, Huajie http://orcid.org/0000-0002-4915-3142
Lu, Jianfeng http://orcid.org/0000-0001-6255-5165
Ortner, Christoph
Funding for this research was provided by:
Fundamental Research Funds for the Central Universities, China (2017EYT22)
European Research Council (Starting Grant 335120)
Division of Mathematical Sciences (1312659, 1454939)
Article History
Received: 16 August 2016
Accepted: 28 April 2018
First Online: 9 May 2018