activity
20192025
collaborators

14 papers

math.OC2025

Time-inconsistent reinsurance and investment optimization problem with delay under random risk aversion

Jian-hao Kang, Zhun Gou, Nan-jing Huang

This paper considers a newly delayed reinsurance and investment optimization problem incorporating random risk aversion, in which an insurer pursues maximization of the expected ce…

math.OC2025

Nash Equilibria of Noncooperative/Mixed Differential Games with Density Constraints in Infinite Dimensions

Zhun Gou, Nan-Jing Huang, Jian-Hao Kang +1

Motivated by Cournot models, this paper proposes novel models of the noncooperative and cooperative differential games with density constraints in infinite dimensions, where market…

math.OC2025

Linear-quadratic stochastic nonzero-sum differential games between graphon teams

De-xuan Xu, Zhun Gou, Nan-jing Huang

We study a class of nonzero-sum stochastic differential games between two teams with agents in each team interacting through graphon aggregates. On the one hand, in each large popu…

math.OC2025

Equilibrium reinsurance and investment strategies for insurers with random risk aversion under Heston's SV model

Jian-hao Kang, Zhun Gou, Nan-jing Huang

This study employs expected certainty equivalents to explore the reinsurance and investment issue pertaining to an insurer that aims to maximize the expected utility while being su…

math.OC2024

Social Optima in Linear Quadratic Graphon Field Control: Analysis via Infinite Dimensional Approach

De-xuan Xu, Zhun Gou, Nan-jing Huang

This paper is concerned with linear quadratic graphon field social control problem where the noises of individual agents are correlated. Compared with the well-studied mean field s…

math.OC2024

Linear-quadratic Stochastic Stackelberg Differential Games with Affine Constraints

Zhun Gou, Nan-Jing Huang, Xian-Jun Long +1

This paper investigates the non-zero-sum linear-quadratic stochastic Stackelberg differential games with affine constraints, which depend on both the follower's response and the le…

math.OC2024

Linear-Quadratic Graphon Mean Field Games with Common Noise

De-xuan Xu, Zhun Gou, Nan-jing Huang +1

This paper studies linear quadratic graphon mean field games (LQ-GMFGs) with common noise, in which a large number of agents are coupled via a weighted undirected graph. One specia…

math.OC2023

Consumption and portfolio optimization solvable problems with recursive preferences

Jian-hao Kang, Zhun Gou, Nan-jing Huang

This paper considers consumption and portfolio optimization problems with recursive preferences in both infinite and finite time regions. Specially, the financial market consists o…

math.OC2022

Stochastic Linear-quadratic Control Problems with Affine Constraints

Zhun Gou, Nan-jing Huang, Xian-jun Long +1

This paper investigates the stochastic linear-quadratic control problems with affine constraints, in which both equality and inequality constraints are involved. With the help of t…

math.OC2021

A Linear-quadratic Mean-Field Stochastic Stackelberg Differential Game with Random Exit Time

Zhun Gou, Nan-jing Huang, Ming-hui Wang

In this paper, we investigate a new model of a linear-quadratic mean-field stochastic Stackelberg differential game with one leader and two followers, in which the leader is allowe…

math.PR2021

Set-valued Ito's formula with an application to the general set-valued backward stochastic differential equation

Yao-jia Zhang, Zhun Gou, Nan-jing Huang

The overarching goal of this paper is to establish a set-valued Itô's formula. As an application, we obtain the existence and uniqueness of solutions for the general set-valued bac…

math.OC2020

Optimal Control Problems Governed by MFSDEs with multi-defaults

Zhun Gou, Nan-jing Huang, Ming-hui Wang +1

In this paper, we solve an optimal control problem governed by a system of mean-field stochastic differential equations with multiple defaults (MMFSDEs). We transform the global op…

math.OC2020

A stochastic optimal control problem governed by SPDEs via a spatial-temporal interaction operator

Zhun Gou, Nan-jing Huang, Ming-hui Wang +1

In this paper, we first introduce a new spatial-temporal interaction operator to describe the space-time dependent phenomena. Then we consider the stochastic optimal control of a n…

math.PR2019

Strong solutions for jump-type stochastic differential equations with non-Lipschitz coefficients

Zhun Gou, Ming-hui Wang, Nan-jing Huang

In this paper, the existence and pathwise uniqueness of strong solutions for jump-type stochastic differential equations are investigated under non-Lipschitz conditions. A sufficie…