Supported by the National Natural Science Foundation of China(Grant Nos.11871126 and 12141101);Technology Research Foundation of Chongqing Educational committee(Grant No.KJQN201900530);Chongqing Normal University Science Research Fund(Grant No.17XLB022)。
This paper discusses the sprays of isotropic curvature.We first determine the relationship betweenχ-curvatures of two projectively related sprays.Based on this,we find an approach to construct sprays of isotropic cur...
Supported by Natural Science Foundation of China(Grant Nos.11971490,11901595);Natural Science Foundation of Guangdong Province(Grant No.2018A030313841);Guangdong Province Key Laboratory of Computational Science at the Sun Yat-sen University(Grant No.2020B1212060032);AFOSR(Grant No.FA9550-19-1-0213)through a subcontract from University of California,Los Angeles。
Recently,there has been emerging interest in constructing reproducing kernel Banach spaces(RKBS)for applied and theoretical purposes such as machine learning,sampling reconstruction,sparse approximation and functional...
Supported by National Natural Science Foundation of China(Grant No.61370187)
In this paper, we construct some 1 1/2-designs, which are also known as partial geometric designs, using totally isotropic subspaces of the symplectic space and generalized symplectic graphs. Furthermore, these 1^-des...
supported by the scientific research fund for young teachers of Tianjin Polytechnic University(Grant No.029960);supported by National Natural Science Foundation of China(Grant No.11171015)
For a non-degenerate pair of compact quantum groups, we first construct the quantum double as an algebraic compact quantum group in an algebraic framework. Then by adopting some completion procedure, we give the unive...
Supported by National Natural Science Foundation of China (Grant Nos. 10801104 and 10831002)
Detecting arrays were proposed by Colbourn and McClary in 2008, which are of interest in generating software test suites to cover all t-sets of component interactions and detect interaction faults in component-based s...
Supported by project MTM 2008-03880 of MICINN (Spain) ;by the joint Madrid Region-UAM project TENU3 (CCG08-UAM/ESP-3906)
We use the probabilistic method to prove that for any positive integer g there exists an infinite B2[g] sequence A = {ak} such that ak ≤ k^2+1/g(log k)^1/g+0(1) as k→∞. The exponent 2+1/g improves the previo...