32 citations · 64 across the 7 of their papers we have counts for
7 papers
On Substochastic Inverse Eigenvalue Problems with the Corresponding Eigenvector Constraints
Yujie Liu, Dacheng Yao, Hanqin Zhang
We consider the inverse eigenvalue problem of constructing a substochastic matrix from the given spectrum parameters with the corresponding eigenvector constraints. This substochas…
Partial Backorder Inventory System: Asymptotic Optimality and Demand Learning
Andrew E. B. Lim, Zhao-Xuan Wei, Hanqin Zhang
We develop a stochastic inventory system which accounts for the limited patience of backlogged customers. While limited patience is a feature that is closer to the nature of unmet…
Impulse Control with Discontinuous Setup Costs: Discounted Cost Criterion
Fen Xu, Dacheng Yao, Hanqin Zhang
This paper studies a continuous-review backlogged inventory model considered by Helmes et al. (2015) but with discontinuous quantity-dependent setup cost for each order. In particu…
Fluid Models of Parallel Service Systems under FCFS
Yuval Nov, Gideon Weiss, Hanqin Zhang
We study deterministic fluid approximations of parallel service systems operating under first come first served policy (FCFS). The condition for complete resource pooling is identi…
Optimal Ordering Policy for Inventory Systems with Quantity-Dependent Setup Costs
Shuangchi He, Dacheng Yao, Hanqin Zhang
We consider a continuous-review inventory system in which the setup cost of each order is a general function of the order quantity and the demand process is modeled as a Brownian m…
A Unified Approach to Diffusion Analysis of Queues with General Patience-time Distributions
Junfei Huang, Hanqin Zhang, Jiheng Zhang
We propose a unified approach to establishing diffusion approximations for queues with impatient customers within a general framework of scaling customer patience time. The approac…