15 citations · 21 across the 7 of their papers we have counts for
7 papers
Independent wavefront tailoring in full polarization channels by helicity-decoupled metasurface
Guowen Ding, Ke Chen, Na Zhang +3
Controlling the polarization and wavefront of light is essential for compact photonic systems in modern science and technology. This may be achieved by metasurfaces, a new platform…
Capped Lp approximations for the composite L0 regularization problem
Qia Li, Na Zhang
The composite L0 function serves as a sparse regularizer in many applications. The algorithmic difficulty caused by the composite L0 regularization (the L0 norm composed with a lin…
On optimal solutions of the constrained regularization and its penalty problem
Na Zhang, Qia Li
The constrained regularization plays an important role in sparse reconstruction. A widely used approach for solving this problem is the penalty method, of which the least…
Optimal stopping problems with regime switching: a viscosity solution method
Yong-Chao Zhang, Na Zhang
We employ the viscosity solution technique to analyze optimal stopping problems with regime switching. Specifically, we obtain the viscosity property of value functions, the unique…
A study of gravity-linked metapopulation models for the spatial spread of dengue fever
Marta Sarzynska, Oyita Udiani, Na Zhang
Metapopulation (multipatch) models are widely used to study the patterns of spatial spread of epidemics. In this paper we study the impact of inter-patch connection weights on the…
New Proofs for Several Properties of Capacities
Guangyan Jia, Na Zhang
In this note, we find a new way to prove several properties of 2-alternating capacities.
Invariant representation for stochastic differential operator by BSDEs with uniformly continuous coefficients and its applications
Na Zhang, Guangyan Jia
In this paper, we prove that a kind of second order stochastic differential operator can be represented by the limit of solutions of BSDEs with uniformly continuous coefficients. T…