Nanjing University of Finance and Economics

output

20072025

most citedCo-contributorship Network and Division of Labor in Individual Scientific Collaborations

23 citations

researchers with a paper here

Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.

collaborating institutions

30 papers

cs.CR2025

Supply Chain Network Security Investment Strategies Based on Nonlinear Budget Constraints: The Moderating Roles of Market Share and Attack Risk

Jiajie Cheng, Jiaxin Wang, Caijiao Li +4

In the context of the rapid development of digital supply chain networks, dealing with the increasing cybersecurity threats and formulating effective security investment strategies…

math.NT2023

On finite field analogues of determinants involving the Beta function

Hai-Liang Wu, Li-Yuan Wang, Hao Pan

Motivated by the works of L. Carlitz, R. Chapman and Z.-W. Sun on cyclotomic matrices, in this paper, we investigate certain cyclotomic matrices concerning the Jacobi sums over fin…

astro-ph.IM2021★ 9 cited

Nii: a Bayesian orbit retrieval code applied to differential astrometry

Sheng Jin, Xiaojian Ding, Su Wang +2

Here we present an open source Python-based Bayesian orbit retrieval code (Nii) that implements an automatic parallel tempering Markov chain Monte Carlo (APT-MCMC) strategy. Nii pr…

cond-mat.stat-mech2021★ 4 cited

Average trapping time on a type of horizontally segmented 3 dimensional Sierpinski gasket network with two types of locally self-similar structures

Zhizhuo Zhang, Bo Wu

As a classic self-similar network model, Sierpinski gasket network has been used many times to study the characteristics of self-similar structure and its influence on the dynamic…

cond-mat.stat-mech2021★ 1 cited

Average Trapping time on the 3-dimensional 3-level Sierpinski gasket network with a set of trap nodes

Zhizhuo Zhang, Bo Wu

As a basic dynamic feature on complex networks, the property of random walk has received a lot of attention in recent years. In this paper, we first studied the analytical expressi…

cs.CV2020★ 2 cited

SPOC learner's final grade prediction based on a novel sampling batch normalization embedded neural network method

Zhuonan Liang, Ziheng Liu, Huaze Shi +7

Recent years have witnessed the rapid growth of Small Private Online Courses (SPOC) which is able to highly customized and personalized to adapt variable educational requests, in w…

math.GN2020

C-Minimal topological groups

Wenfei Xi, Menachem Shlossberg

We study topological groups having all closed subgroups (totally) minimal and we call such groups c-(totally) minimal. We show that a locally compact c-minimal connected group is c…

econ.GN2020★ 1 cited

Competition among Large and Heterogeneous Small Firms

Lijun Pan, Yongjin Wang

We extend the model of Parenti (2018) on large and small firms by introducing cost heterogeneity among small firms. We propose a novel necessary and sufficient condition for the ex…

q-fin.TR2019

Predicting intraday jumps in stock prices using liquidity measures and technical indicators

Ao Kong, Hongliang Zhu, Robert Azencott

Predicting the intraday stock jumps is a significant but challenging problem in finance. Due to the instantaneity and imperceptibility characteristics of intraday stock jumps, rele…

cs.SI2019★ 23 cited

Co-contributorship Network and Division of Labor in Individual Scientific Collaborations

Chao Lu, Yingyi Zhang, Yong-Yeol Ahn +3

Collaborations are pervasive in current science. Collaborations have been studied and encouraged in many disciplines. However, little is known how a team really functions from the…

math.PR2019

Large Deviations for Stochastic Porous Media Equation on General Measure Spaces

Weina Wu, Jianliang Zhai

In this paper, we establish the large deviation principles for stochastic porous media equations driven by time-dependent multiplicative noise on $σ$ -finite measure space $(E,\math…

math.DS2019★ 1 cited

Algebraic entropy on topologically quasihamiltonian groups

Wenfei Xi, Menachem Shlossberg, Daniele Toller

We study the algebraic entropy of continuous endomorphisms of compactly covered, locally compact, topologically quasihamiltonian groups. We provide a Limit-free formula which helps…

math.CO2019

A $q$ -analogue of Wilson's congruence

Hao Pan, Yu-Chen Sun

Let $C_{n}$ be the set of all permutation cycles of length $n$ over ${1, 2, \dots, n}$ . Let $f_{n} (q) := σ \in C_{n + 1} \sum q^{m aj σ}$ be a…

math.NT2018

Some permutations over $F_{p}$ concerning primitive roots

Li-Yuan Wang, Hao Pan

Let $p$ be an odd prime and let $F_{p}$ denote the finite field with $p$ elements. Suppose that $g$ is a primitive root of $F_{p}$ . Define the permutation $τ_g:\,{\…

econ.EM2018

Using generalized estimating equations to estimate nonlinear models with spatial data

Cuicui Lu, Weining Wang, Jeffrey M. Wooldridge

In this paper, we study estimation of nonlinear models with cross sectional data using two-step generalized estimating equations (GEE) in the quasi-maximum likelihood estimation (Q…

math.GN2018★ 1 cited

Densely locally minimal groups

Wenfei Xi, Dikran Dikranjan, Menachem Shlossberg +1

We study locally compact groups having all dense subgroups (locally) minimal. We call such groups densely (locally) minimal. In 1972 Prodanov proved that the infinite compact abeli…

stat.ME2018★ 4 cited

VIMCO: Variational Inference for Multiple Correlated Outcomes in Genome-wide Association Studies

Xingjie Shi, Yuling Jiao, Yi Yang +4

In Genome-Wide Association Studies (GWAS) where multiple correlated traits have been measured on participants, a joint analysis strategy, whereby the traits are analyzed jointly, c…

math.NT2018★ 6 cited

Supercongruences concerning truncated hypergeometric series

Chen Wang, Hao Pan

Let $n \geq 3$ be an integer and $p$ be a prime with $p \equiv 1 (mod n)$ . In this paper, we show that $${}_nF_{n-1}\bigg[\begin{matrix} \frac{n-1}{n}&\frac{n-1}{n}&\ldots&\frac{n-1}…

math.NT2018

On the sums of three generalized polygonal numbers

Hai-Liang Wu, Hao Pan

For each natural number $m \geq 3$ , let $P_{m} (x)$ denote the generalized $m$ -gonal number $\frac{( m - 2 ) x ^{2} - ( m - 4 ) x}{2}$ with $x \in Z$ . In this paper, with the help of the congru…

math.NT2018

On the almost universality of $⌊ x^{2} / a ⌋ + ⌊ y^{2} / b ⌋ + ⌊ z^{2} / c ⌋$

Hai-Liang Wu, He-Xia Ni, Hao Pan

In 2013, Farhi conjectured that for each $m \geq 3$ , every natural number $n$ can be represented as $⌊ x^{2} / m ⌋ + ⌊ y^{2} / m ⌋ + ⌊ z^{2} / m ⌋$ with $x,y,z\in\Z…

math.AP2016★ 4 cited

Well-posedness of a porous medium flow with fractional pressure in Sobolev spaces

Xuhuan Zhou, Weiliang Xiao

The nonnegative solution for a linear degenerate diffusion transport eqution is proved. As a result, we show the existence and uniqueness of the solution for the fractional porous…

math.NT2016

Small gaps between the Piatetski-Shapiro primes

Hongze Li, Hao Pan

Suppose that $1 < c < 9/8$ . For any $m \geq 1$ , there exist infinitely many $n$ such that ${[n^{c}], [(n + 1)^{c}], \dots, [(n + k_{0})^{c}]}$ contains at least $m + 1$ primes, if $k_{0}$ is…

math.AP2015

Analysis of a non-autonomous mutualism model driven by Levy jumps

Mei Li, Hongjun Gao, Binjun Wang

This article is concerned with a mutualism ecological model with Levy noise. The local existence and uniqueness of a positive solution are obtained with positive initial value, and…

math.AP2015★ 8 cited

Long time behavior of solutions of Fisher-KPP equation with advection and free boundaries

Hong Gu, Bendong Lou, Maolin Zhou

We consider Fisher-KPP equation with advection: $u_{t} = u_{xx} - β u_{x} + f (u)$ for $x \in (g (t), h (t))$ , where $g (t)$ and $h (t)$ are two free boundaries satisfying Stefan conditions. This eq…

Supply Chain Network Security Investment Strategies Based on Nonlinear Budget Constraints: The Moderating Roles of Market Share and Attack Risk

On finite field analogues of determinants involving the Beta function

Nii: a Bayesian orbit retrieval code applied to differential astrometry

Average trapping time on a type of horizontally segmented 3 dimensional Sierpinski gasket network with two types of locally self-similar structures

Average Trapping time on the 3-dimensional 3-level Sierpinski gasket network with a set of trap nodes

SPOC learner's final grade prediction based on a novel sampling batch normalization embedded neural network method

C-Minimal topological groups

Competition among Large and Heterogeneous Small Firms

Predicting intraday jumps in stock prices using liquidity measures and technical indicators

Co-contributorship Network and Division of Labor in Individual Scientific Collaborations

Large Deviations for Stochastic Porous Media Equation on General Measure Spaces

Algebraic entropy on topologically quasihamiltonian groups

A q-analogue of Wilson's congruence

Some permutations over Fp​ concerning primitive roots

Using generalized estimating equations to estimate nonlinear models with spatial data

Densely locally minimal groups

VIMCO: Variational Inference for Multiple Correlated Outcomes in Genome-wide Association Studies

Supercongruences concerning truncated hypergeometric series

On the sums of three generalized polygonal numbers

On the almost universality of ⌊x2/a⌋+⌊y2/b⌋+⌊z2/c⌋

Well-posedness of a porous medium flow with fractional pressure in Sobolev spaces

Small gaps between the Piatetski-Shapiro primes

Analysis of a non-autonomous mutualism model driven by Levy jumps

Long time behavior of solutions of Fisher-KPP equation with advection and free boundaries

A $q$ -analogue of Wilson's congruence

Some permutations over $F_{p}$ concerning primitive roots

On the almost universality of $⌊ x^{2} / a ⌋ + ⌊ y^{2} / b ⌋ + ⌊ z^{2} / c ⌋$