# Visiting Scholars

2018 - 2019

**Liling Sun**, College of Mathematics, Taiyuan University, China, 8/1/18 - 8/1/19, sunliling@yeah.net

2017 - 2018

**Wei Zhao**, Department of Mathematics, East China University of Science and Technology, China, szhao_wei@yahoo.com

**Libing Huang**, School of Mathematical Sciences, Nankai University, China, huanglb@nankai.edu.cn

**Qiong Xue**, Department of Mathematics, Wuhan University of Technology, China, xueqion@iu.edu

**Daxiao Zheng**, Anhui Normal University, China, 15556358915@163.com

**Weiying Ping**, Economic Statistics Department, Jiangxi University of Finance and Economics, China, pingweiying815@aliyun.com

2016 - 2017

**Danxia Wang**, School of Mathematics, Taiyuan University of Technology, China, 2621259544@qq.com

**Sonja Stimac**, Department of Mathematics, University of Zagreb, stimacs@iupui.edu

**Yuqi Li**, School of Computer Science and Software Engineering, East China Normal University, 9/1/16 - 9/1/17, yqli@sei.ecnu.cn

**Tomasz Downarowicz**, Wroclaw University of Science and Technology, Poland, 11/1/16 - 11/30/16

2015 - 2016

**Sonja Stimac**, Department of Mathematics, University of Zagreb, stimacs@iupui.edu

**Saran Maiti**, Mathematical Sciences, maitis@iupui.edu

2014 - 2015

**Sonja Stimac**, Department of Mathematics, University of Zagreb, stimacs@iupui.edu

**Saran Maiti**, Mathematical Sciences, maitis@iupui.edu

**Alexander ****Aptekarv**e, Keldysh Institute for Applied Mathematics, 9/15/14 - 10/15/14, aptekaa@keldysh.ru

**Bikas Sinha**, Indian Statistical Institute, 4/1/15 - 4/30/15

**Dimitri Gourevitch**, Laboratoire de Mathematiques et leurs, 4/10/15 - 5/1/15, dimitri.gurevich@gmail.com. Dr. Dimitri Gourevitch is an expert in quantum integrable models and quantum groups. He will work with our faculty in the area of different calculus on quantum groups and its applications to integrable models and noncommutative geometry.

**Oleg Lisovyi**, Laboratoire de Mathematiques et Physique Theorique, 9/26/14 - 11/2/14, lisovyi@lmpt.uiv-tours.fr

**Vladimir Sukhanov**, St. Petersburg State University, Russia, 8/1/14 - 8/31/14, vvsukhanov@gmail.ru. Professor Sukhanov is a recognized expert in spectral theory of different operators and its application to integrable systems. He is world known for his pioneering works on the asymptotic analysis of the integrable PDEs of KdV type.

**Hui Wang**, Nanjing University of Posts and Telecommunications, 8/14/14 - 3/3/15, leany0801@126.com

**Bingye Wu**, Minjiang University, 7/1/14 - 8/17/14

**Qiaoling Xia**, Zhejiang University, 7/1/14 - 8/17/14

**Denis Zakharov**, Institute of Applied Physics, Russian Academy of Science, 6/20/15 - 7/3/15, zakharov@neuron.appl.sci-nnov.ru. Dr. Zakharov develops and analyzes models of neurons. Research interests of Dr. Zakharov, along with biomathematics, include dynamical systems, in particular Bifurcation Theory.

2013 - 2014

**Oleg Lisovyi**, Laboratoire de Mathematiques et Physique Theorique, 9/26/13 - 10/29/13, lisovyi@lmpt.uiv-tours.fr

**Sengelen Sevin**, Istanbul Bilgi University, 7/1/13 - 7/30/13

**Semail Ulgen Yildirim**, Antalya International University, 6/25/13 - 8/15/13

2010 - 2011

**Yongguang Cheng**, Wuhan University, 5/1/11 - 5/31/11, chengyg2000@yahoo.com.cn. Dr. Yongguang Cheng has been working on fluid mechanics and its applications to hydraulic, environmental, and biological engineering sciences for fifteen years. His recent research interests include numerical algorithms of fluid-structure interaction based on the coupling of the immersed boundary method and the lattice Boltzmann method, which was supported by three National Natural Science Foundation of China (NFSC) projects since 2003. Successful simulations of cardiovascular fluid dynamics by these methods, e.g. ventricular, arterial, and mitral valve flows, have demonstrated the huge potential of the hybrid approach he has been developing.

**Valentin Zagrebnov**, Universite Aix-Mareseille II, 4/3/11 - 5/2/11, Valentin.Zagrebnov@ctp.univ-mrs.fr. Dr. Valentin Zagrebnov research interests include three areas: 1) Functional analysis and semi-group theory: Trotter-Kato product formula and semi-group approximations, non-autonomous Cauchy problem and evolution operators, and theory of the Quasi-Sectoral contractions and of the Gibbs semi-groups; 2) Quantum Many-Body Problems and Dynamics: Boson systems and Bose-Einstein condensation, quantum many-body dynamics and non-equilibrium steady states, Laplace transport, Dirichet-to-Neumann operators and (geometric) inverse problems; and 3) Statistical Mechanics and Probability: Random point processes, disordered systems, (quantum) phase transitions.

**Dimitri Yafaev**, University of Rennes, 4/1/11 - 5/1/11, Dimitri.yafaev@univ-rennes1.fr. Professor Dimitri Yafaev is a world renowned expert in Spectral Theory. He has made several major contributions to the development of this field. In particular, he has done pioneering works on the study of point spectrum of the three quantum particles and on the development of non-stationary approach in mathematical scattering theory. Yafaev's most recent research is concerned with studying of spectral determinants and special properties of discontinuous functions of Hermitian operators. These areas overlap with the research carrying out in the mathematical physics groups of the department.

**Valentin Afraimovich**, Universidad Autonoma, 10/1/10 - 10/10/10. Professor Valentin Afraimovich's areas of specialization include dynamical systems, qualitative theory of ordinary differential equations, bifurcation theory, strange attractors, space-time chaos, mathematical models of nonequilibrium media and biological systems, traveling waves in lattice models, complexity of orbits and dimension-like characteristics in dynamical systems.

**Denis Zakharov**, Russian Academy of Sciences, 9/1/10 - 9/30/10, zakharov@neuron.appl.sci-nnov.ru. Dr. Zakharov has eight years of experience modeling biological oscillations, in particular for neuroscience applications. He has published six papers on this subject in peer-reviewed international and Russian journals. Dr. Zakharov and Dr. Kuznetsov have worked together for the past six months on the project, Dynamical Mechanisms for High-Frequency Firing of the Dopaminergic Neuron, and will continue their work during his visit.

**Lili Zhao**, Shanghai Jiao Tong University, 8/1/10 - 7/31/11, zhaolili@sjtu.edu.cn. Professor Zhao is working in the area of Finsler geometry. Her recent works discuss the sufficient and necessary condition for a kind of polynomial Finsler metrics to be locally projectively flat and presented non-trivial special solution. She is also interested in the behaviors of the flag curvature which is the most important geometric quantity in the Finslerian realm.

**Shaul Bar-Lev**, University of Haifa, Israel, 8/2/10 - 9/27/10, barlev@stat.haifa.ac.il. Dr. Shaul Bar-Lev is a Professor at the Department of Statistics, University of Haifa, Israel. His research interests includes: Mathematical Statistics, Statistical Modeling, Asymptotic Theory, Characterizations, Exponential Families, Exponential Dispersion Models, Sampling, Randomized Response Models, Applied Stochastic Models and Optimization, Group Testing and Marketing Surveys. He has published numerous articles in leading statistical journals.

**Esra Sengelen**, Bilgi University, Istanbul, Turkey, 7/1/10 - 6/30/11, esengelen@bilgi.edu.tr. Dr. Sengelen's research interests include: complex and almost complex structures on manifolds, quaternionic and almost quaternionic structures on manifolds, Kaehlerian structures in Weyl spaces, semi-symmetric metric F-connection spaces, and infinitesimal pseudo homothetic motions on some special Riemannian spaces.

**Fatma Ozdemir**, Istanbul Technical University, Maslak, Istanbul, Turkey, 7/1/10 - 6/30/11, fozdemir@itu.edu.tr. Dr. Ozdemir's research interests include: complex and almost complex structures on manifolds, quaternionic and almost quaternionic structures on manifolds, Kaehlerian structures in Weyl spaces, semi-symmetric metric F-connection spaces, and infinitesimal pseudo homothetic motions on weakly Ricci symmetric spaces.

**Chao-Nien Chen**, National Changhua University of Education, Taiwan, 6/22/10 - 7/5/10, cn5chen@yahoo.com. Professor Chen has been working on calculus of variations and its applications to differential equations. In particular, he is interested in Hamiltonian systems, reaction-diffusion systems, nonlinear Sturm-Liouville equations, periodic orbits and connecting orbits and connecting orbits of differential equations, and Ginzburg-Landau systems.

2009 - 2010

**Guowei He**, Visiting Professor, 6/1/10 - 6/30/10, hgw@lnm.imech.ac.cn. Professor He has a diverse background in fluid mechanics, statistic physics and computational mathematics. His major research area is the last-untaken-castle of the classic physics--the turbulence. His specific expertise includes turbulence statistical theory and computational modeling, large-eddy simulation of turbulent flows. He also works in the area of nonlinear dynamics and chaos, and multi-scale modeling and simulation for micro and nano fluidics.

**Evgeni Feigin**, Imperial College, London, England, 5/1/10 - 5/28/10. Evgeny Feigin is an expert in representation theory and vertex operator algebras. His research focuses on the representation and structure theory of semisimple and affine Kac-Moody algebras with applications to various fields of mathematics, such as algebraic geometry, combinatorics, conformal field theory and quantum integrable systems. Evgeny Feigin is a senior researcher at the Theoretical Department of the Lebedev Physics Institute, Moscow, Russha. He is a recipient of several grants and fellowships, including the Russian President Grant, Alexander von Humboldt Fellowship, and Pierre Deligne Fellowship.

**John Elgin**, Imperial College, London, England, 4/3/10 - 5/2/10. Professor John Elgin is one of the top persons in applications of integrable systems to nonlinear optics.

**Sergii Koliada**, Mathematical Institute of the Ukrainian Academy of Sciences, Kiev, Ukraine, 3/15/10 - 4/30/10, skolyada@googlemail.com. Sergii Koliada is one of the top specialists in Topological Dynamics. He received his PhD in 1987 and his advisor was A.H. Sharkovsky (famous for his theorem on periods of cycles of interval maps). Currently, Koliada is working as a Leading Scientific Researcher (a position corresponding to a Full Professor) in the Mathematical Institute of the Ukrainian Academy of Sciences in Kiev, Ukraine. Sergii Koliada is an author of over 30 papers, co-author of a book and an editor of several books. MathSciNet Citation Index shows his papers cited 222 times by 142 authors (with only 27 of those citations coming from the book). This proves that his results are considered important and are widely known.

**Senya Shlosman**, Centre de Physique Theorique, France, 3/1/10 - 3/31/10, shlosman@cpt.univ-mrs.fr. Algebraic topology, mathematical physics, probability theory, combinatorics.

**Behroz Bidabad**, Polytechnic, Amirkabir University of Technology, Tehran, Iran, 1/1/10 - 9/15/10, bidabad@aut.ac.ir. Dr. Bidabad's main research interest is in Finsler Geometry. He is on his sabbatical leave at our university to work with Dr. Shen.

**Michael Semenov-Tian-Shansky**, University of Burgundy, Dijon, France, 11/1/09 - 11/30/09, semenov@u-bourgogne.fr. Professor Semenov-Tian-Shansky is a leading expert in the algebraic and geometric aspects of integrable systems. His research is concerned with quantum and classical Yang-Baxter equations, representation theory of semisimple Lie groups, representation of quantum groups, Poisson geometry and differential Galois theory. Professor Semenov-Tian-Shansky's visit is a part of the faculty and student exchange program between IUPUI and University of Burgundy. Professor Semenov-Tian-Shansky is a member of the joint IUPUI-University of Burgundy Committee for Mr. David Niles's PhD thesis defense, which took place in November 2009.