Zhi-Qiang Wang Ph.D.

Mathematics and Statistics

Professor


Zhi Qiang Wang

Contact Information

Office Location: Animal Science (ANSC) 205
Phone: (435) 797-3529
Email: zhi-qiang.wang@usu.edu
Additional Information:

Educational Background

PhD, Institute of Mathematics, Chinese Academy of Sciences, 1986
MS, Institute of Mathematics, Chinese Academy of Sciences., 1984
BS, Jilin University, 1982

Biography

Z.-Q. Wang graduated in 1982 from Jilin University China majoring in mathematics, and received his MS degree and PhD degree in mathematics from the Chinese Academy of Sciences, in 1984 and 1986, respectively. After post-doctoral training in Peking University and Courant Institute of New York University, and holding visiting positions at University of Utah and University of Wisconsin, he joined Utah State University in 1991 as an assistant professor. He was promoted to associated professor with tenure in 1994 and to full professor in 1998. He served from 1994-1997 as Director of Graduate Studies in Mathematics and Statistics at Utah State University. In 1998 and 2020 he was awarded Researcher of The Year in the College of Sciences at Utah State University. In 2020 he was awarded Utah State University Robins Award - the 2020 Faculty Researcher of the Year. He was elected a Fellow of American Mathematical Society 2015.

Teaching Interests

courses in calculus, real analysis, functional analysis, ordinary differential equations, partial differential equations, applied mathematics

Research Interests

Citations at AMS-MathSciNet:
https://mathscinet.ams.org/mathscinet/2006/mathscinet/search/author.html?mrauthid=239651

Citations at Google Scholar:
https://scholar.google.com/citations?hl=en&user=0F1CTOMAAAAJ


Nonlinear Functional Analysis
the calculus of variations
topological methods andbifurcations
critical point theory,
minimax methods and Morse theory
the best constants and extremal functions of Hardy-Sobolev typeinequalities

Nonlinear Partial Differential Equations
boundary value problems of nonlinear elliptic PDEs
the best constants and extremal functions of Hardy-Sobolev typeinequalities
nonlinear Schr\"odinger type equations from mathematical physics
qualitative properties of solutions such as symmetry, nodal and geometric properties
existence and stability of solitary waves
pattern formationsand phase transitionsin mathematical models
nonlinear ellipticequations from geometry

Lagrangian and Hamiltonian Systems of Ordinary DifferentialEquations
periodic orbits, connectingorbits, and invariant sets of flows

Numerical Algorithms for SolvingMultiple Saddle Type Solutions

Awards

Fellow of American Mathematical Society , 2015

American Mathematical Society

USU Robins Award - the 2020 Faculty Researcher of the Year, 2020

Utah State University

USU College of Science Researcher of the Year, 2020, 2020

College of Science, USU

USU Department of Mathematics and Statistics Researcher of the Year,, 2020

USU Department of Mathematics and Statistics

Highly Cited Researcher List, Clarivate Analytics, 2019, 2019

clarivate.com

Highly Cited Researcher List, Clarivate Analytics, 2018, 2018

clarivate.com

DAAD Guest Professorship, 2005

DAAD Germany

New Direction Visiting Professorship , 2004

Institute of Mathematics and Applications, University of Minnesota

Professor/Faculty of the Year, 2003

Utah State University Greek Council

DFG Visiting Professorship , 1998

DFG Germany

Researcher of The Year, 1998

Utah State University College of Sciences

Researcher of the year, 1998

Utah State University Dept of Math and Stat

Researcher of the year, 1995

Utah State University Dept of Math and Stat


Publications | Journal Articles

Academic Journal

  • Liu, C., Nguyen, N.V, Tian, R., Wang, Z.Q, (2025). On the stability of solitary-wave and ground-state solutions for the generalized BBM equation. Physica Scripta, doi: 10.1088/1402-4896/ae3260
  • Wang, Z.Q, Zhang, C., Zhang, Z., (2023). Multiple bump solutions to logarithmic scalar field equations.
  • Zhang, L., Chen, J., Wang, Z.Q, (2023). Ground states for a quasilinear Schrdinger equation: mass critical and supercritical cases.
  • Peng, S., Peng, Y., Wang, Z.Q, (2016). On elliptic systems with Sobolev critical growth.
  • Byeon, J., Sato, Y., Wang, Z.Q, (2016). Pattern formation via mixed attractive and repulsive interactions for nonlinear Schrödinger systems.
  • Liu, J., Liu, X., Wang, Z.Q, (2016). Sign-changing solutions for coupled nonlinear Schrödinger equations with critical growth.
  • Chen, G., Ma, S., Wang, Z.Q, (2016). Standing waves for discrete Schrödinger equations in infinite lattices with saturable nonlinearities.
  • L., Nguyen, N.V, Wang, Z.Q, (2016). Orbital stability of spatially synchronized solitary waves of an m-coupled nonlinear Schrodinger system. Journal of Mathematical Physics
  • Nguyen, N.V, Wang, Z.Q, (2016). Existence and stability of a two-parameter family of solitary waves for a 2-coupled nonlinear Schrodinger system. Discrete and Continuous Dynamical System A., 36:2, 1005-1021. doi: doi: 10.3934/dcds.2016.36.1005.
  • L., Nguyen, N.V, Wang, Z.Q, (2016). Existence and stability of solitary waves of an m-coupled nonlinear Schrodinger system. Journal of Mathematical Study, 49:2, 132-148. doi: doi: 10.4208/jms.v49n2.16.03
  • Wang, Z.Q, (2015). Diagonals of Green's functions and applications.
  • Wang, Z.Q, (2015). Ground states for nonlinear Schrodinger equations with a sign-changing potential well. Adv. Nonlinear Stud.
  • Wang, Z.Q, (2015). Multiple positive solutions for Schrodinger systems with mixed couplings. Calc. Var. Partial Differential Equations
  • Wang, Z.Q, (2015). Bifurcations for a coupled Schr\"odinger system with multiple components. Zeitschrift f\"ur Angewandte Mathematik und Physik
  • Wang, Z.Q, (2015). Existence and stability of standing waves for coupled derivative Schrodinger equations. Journal of Mathematical Physics
  • Wang, Z.Q, (2015). Multiple mixed states of nodal solutions for nonlinear Schr\"odinger systems.
  • Wang, Z.Q, (2015). Multiple normalized solutions for quasi-linear Schrodinger equations. J. Differential Equations
  • Wang, Z.Q, (2015). On Clark's theorem and its applications to partially sublinear problems. Ann. Inst. H. Poincar\'e Anal. Non Lin\'eaire
  • Wang, Z.Q, (2015). Existence and multiple solutions for a critical quasilinear equation with singular potentials. NoDEA Nonlinear Differential Equations Appl.
  • Wang, Z.Q, (2015). On the least energy sign-changing solutions for a nonlinear elliptic system.
  • Wang, Z.Q, (2015). Least energy solutions for nonlinear Schrodinger systems with mixed attractive and repulsive couplings.
  • Wang, Z.Q, (2014). Multiple solutions for quasilinear elliptic equations with a finite potential well.
  • Nguyen, N.V, Wang, Z.Q, Tian, R., (2014). Stability of traveling-wave solutions for a Schrodinger system with power-type nonlinearities. . Electronic Journal of Differential Equations, 2014:217, 1-16.
  • Wang, Z.Q, (2014). Nodal and multiple solutions of nonlinear problems involving the fractional Laplacian.
  • Wang, Z.Q, (2014). Multiple sign-changing solutions for quasilinear elliptic equations via perturbation method.
  • Wang, Z.Q, W., (2014). Partial Symmetry Of Vector Solutions For Elliptic Systems.
  • Wang, Z.Q, (2013). Multibump solutions for discrete periodic nonlinear Schrödinger equations.. Z. Angew. Math. Phys., 64
  • Wang, Z.Q, Q., J., (2013). Ground states for quasilinear Schrödinger equations with critical growth..
  • Wang, Z.Q, S., (2013). Multibump solutions for discrete periodic nonlinear Schro ̈dinger equations.
  • R., Wang, Z.Q, (2013). Bifurcation results of positive solutions for an indefinite nonlinear elliptic system II..
  • Wang, Z.Q, Y., (2013). On the multiple existence of semi-positive solutions for a nonlinear Schrödinger system. .
  • Wang, Z.Q, X., J., (2013). Quasilinear equations via elliptic regularization method. Advanced Nonlinear Studies, 517-531.
  • Nguyen, N.V, Wang, Z.Q, (2013). Orbital stability of solitary waves of a 3-coupled nonlinear Schrodinger system. Journal of Nonlinear Analysis Series A: Theory, Methods & Applications. , 90, 1-26. doi: 10.1016/j.na.2013.05.027.
  • R., Wang, Z.Q, (2013). Bifurcation results on positive solutions of an indefinite nonlinear elliptic system..
  • Wang, Z.Q, A., J., (2013). Finding multiple solutions to elliptic PDE with nonlinear boundary conditions.. Journal of Scientific Computing , 591-615.
  • K., J., Wang, Z.Q, (2013). Note on periodic solutions of relativistic pendulum type systems.
  • Wang, Z.Q, S., (2013). Segregated and synchronized vector solutions for nonlinear Schrödinger systems..
  • Wang, Z.Q, X., (2013). Ground state of scalar field equations involving a fractional Laplacian with general nonlinearity..
  • Wang, Z.Q, J., Q., (2013). Quasilinear elliptic equations with critical growth via perturbation method. .
  • Wang, Z.Q, X., J., (2013). Quasilinear elliptic equations via perturbation method..
  • Wang, Z.Q, J., Y., (2012). Multibump solutions for quasilinear elliptic equations.. , 4040-4102.
  • Wang, Z.Q, K., (2012). Multiple non semi-trivial solutions for elliptic systems..
  • Wang, Z.Q, J., Y., (2012). Stability of standing waves for a class of quasilinear Schrödinger equations. .
  • Wang, Z.Q, C., C., (2011). Asymptotic symmetry and local behaviors of solutions to a class of anisotropic elliptic equations. .
  • Wang, Z.Q, Y., (2011). Bound states of nonlinear Schrödinger equations with magnetic fields..
  • Wang, Z.Q, Tian, R., (2011). Multiple solitary waves of nonlinear Schr\"odinger systems. Topological Methods in Nonlinear Analysis, 37
  • Nguyen, N.V, Wang, Z.Q, (2011). Orbital Stability of Solitary Waves for a Nonlinear Schrodinger System. Advances in Differential Equations, 16:9-10, 977-1000.
  • Wang, Z.Q, J., (2010). Sobolev type embedding and quasilinear elliptic equations with radial potentials..
  • Wang, Z.Q, T., N., (2010). A Liouville theorem, a-priori bounds, and bifurcating branches of positive solutions for a nonlinear elliptic system. .

Professional Journal

  • Haracz, J.L, Tschanz, J.T, Wang, Z.Q, Griffith, K.E, Rebec, G.V, (1998). Amphetamine effects on striatal neurons: implications for models of dopamine function. Neuroscience and Biobehavioral Reviews, 22, 613-622.
  • Haracz, J.L, Tschanz, J.T, Wang, Z.Q, Griffith, K.E, Rebec, G.V, (1998). Amphetamine effects on striatal neurons: implications for models of dopamine function. Neuroscience and Biobehavioral Reviews, 22, 613-622.
  • Haracz, J.L, Tschanz, J.T, Wang, Z.Q, White, I.M, Rebec, G.V, (1993). Striatal single-unit responses to amphetamine and neuroleptics in freely moving rats. Neuroscience & Biobehavioral Reviews, 1993:17, 1-12.

An asterisk (*) at the end of a publication indicates that it has not been peer-reviewed.

Publications | Other

Other

    An asterisk (*) at the end of a publication indicates that it has not been peer-reviewed.

    Teaching

    MATH 5210 - Introduction to Analysis I, Fall 2025
    MATH 5220 - Introduction to Analysis II, Spring 2025
    MATH 2210 - Multivariable Calculus (QI), Spring 2025
    MATH 5210 - Introduction to Analysis I, Fall 2024
    MATH 5220 - Introduction to Analysis II, Spring 2024
    MATH 2210 - Multivariable Calculus, Spring 2024
    MATH 6220 - Real Analysis, Fall 2022
    MATH 1220 - Calculus II, Spring 2022
    MATH 5220 - Introduction to Analysis II, Spring 2022
    MATH 2210 - Multivariable Calculus, Fall 2021
    MATH 2210 - , 2021
    MATH - , 2021
    MATH 2210 - Multivariable Calculus, Fall 2020
    MATH 6210 - Real Analysis, Fall 2020
    MATH 5210 - Introduction to Analysis I, Fall 2019
    MATH 6210 - Real Analysis, Fall 2019
    Math 2210, Fall 2018
    Math 5470, Fall 2018
    MATH 2210 - Multivariable Calculus, Fall 2018
    MATH 6910 - Directed Reading and Conference, Fall 2017
    MATH 6210, 7210 - Real Analysis, Fall 2017
    MATH 2210 - Multivariable Calculus, Fall 2016
    MATH 6210 - Real Analysis, Fall 2016
    MATH 6210 - Real Analysis, Fall 2015
    MATH 2280 - Ordinary Differential Equations, Fall 2014
    MATH 6410 - Ordinary Differential Equations I, Fall 2014
    MATH 4200 - Foundations of Analysis, 2014
    MATH 2280 - Ordinary Differential Equations, 2014
    MATH 6210,7210 - Real Analysis, Fall 2012
    MATH 1100 - Calculus Techniques, Fall 2010
    MATH 7410 - Differential Equations (Topic), Fall 2010

    Graduate Students Mentored

    Quazi Haque, , October 2019
    Ju Ji,
    Don Russell Sadler,
    Kazuya Hata, 2015
    Rushun Tian, 2013
    Charlie Miller, Mathematics & Statistics, September 2001 2007
    David Buhanan, 2005
    Weijie Zhang, 2004
    Francois van Heerden, Mathematics & Statistics 2004
    K Platt, 2002
    Zenwen Zhu, 2002
    Florin Catrina, Mathematics & Statistics 2000
    Ning Qiao, 1999
    Andrea Woodhouse, 1997
    Ye Duan, 1996
    Tan Zhang, 1994