YINGFEI YI

School of Mathematics
Georgia Institute of Technology
Atlanta, GA 30332-0160
Phone: (404) 894-4568
Fax: (404) 894-4409
Email: yi@math.gatech.edu
Office: Skiles 237B

J. Dynam. Differential Equations J. Differential Equations Taiwanese J. Math. SIAM DSweb Magazine

An interview with Jack K. Hale

PREPRINTS

Almost periodically forced circle flows (with W. Huang)

Quasi-periodic breathers in Hamiltonian networks of long-range coupling (with J. Geng and J. Viveros)

First integrals and normal forms for germs of analytic vector fields (with J. Chen and X. Zhang)

Planar analytic nilpotent germs via analytic first intergrals (with X. Zhang)

PUBLICATIONS

A local variational principle of pressures and its applications to equilibrium states (with W. Huang), Israel J. Math., to appear

A KAM theorem for Hamiltonian networks with long ranged couplings (with J. Geng), Nonlinearity, Vol 20 No 6 (2007), 1313-1342

Quasiperiodic dynamics in Bose-Einstein condensates in periodic lattices and superlattices (with M. van Noort, M. A. Porter, and S.-N. Chow), J. Nonl. Sci., Vol 17 No 1 (2007), 59-83

Quasi-periodic solutions in a nonlinear Schr\"odinger equation (with J. Geng), J. Differential Equations, Vol 233 No 2 (2007), 512-542

Spreading speeds and travelling waves for periodic evolution systems (with X. Liang and X. Zhao), J. Differential Equations, Vol 231 No 1 (2006), 57-77

Nekhoroshev and KAM stabilities in generalized Hamiltonian systems (with Y. Li), J. Dynam. Differential Equations, Vol 18 No 3 (2006), 577-614

On exact Poisson structures (with X. Zhang), Fields Inst. Commun., Vol 48 (2006), 291-311

Degenerate lower dimensional tori in Hamiltonian systems (with Y. Han and Y. Li), J. Differential Equations, Vol 227 (2006), 670-691

Persistence of lower dimensional tori of general types in Hamiltonian systems (with Y. Li), Trans. Amer. Math. Soc., Vol 357 (2005), 1565-1600

Persistence of hyperbolic tori in Hamiltonian systems (with Y. Li), J. Differential Equations, Vol 208 (2005), 344-387

Quasiperiodic dynamics in Hamiltonian $1{1\over 2}$ degree of freedom systems away from integrability (with S.-N. Chow and M. van Noort), J. Differential Equations, Vol 212 (2005), 366-393

On Poincar\'e - Treshchev tori in Hamiltonian systems (with Y. Li), Proc. Equadiff2003, Dumortier et al (Ed.), World Scientific, 2005, 136-151

On almost automorphic oscillations, Fields Inst. Commun., Vol 42 (2004), 75-99

On almost automorphic dynamics in symbolic lattices (with A. Berger and S. Siegmund), Ergod. Th. & Dynam. Sys., Vol 24 No 3 (2004), 677-696

Malaria epidemics and the sickle-cell gene dynamics (with Z. Feng and H. Zhu), J. Dynam. Differentail Equations, Vol 16 No 4 (2004), 869-896

A metapopulation model with explicit local population dynamics (with Z. Feng, R. Swihart and H. Zhu), J. Math. Biosci. Eng., Vol 1 No 1 (2004) 131-145

A quasi-periodic Poincare's Theorem (with Y. Li), Math. Annalen, Vol 326 (2003), 649-690

Relaxation oscillations in a class of predator-prey systems (with W. Liu and D. Xiao), J. Differential Equations, Vol 188 (2003), 306-331

Travelling wave solutions in a tissue interaction model (with S. Ai and S.-N. Chow), J. Dynam. Differential Equations, Vol 15 No 2/3 (2003), 517-534

Metapopulation dynamics with migration and local competition (with Z. Feng and H. Zhu), Fields Inst. Commun., Vol 36 (2003), 119-133

Persistence of invariant tori in generalized Hamiltonian systems (with Y. Li), Ergod. Th. & Dynam. Sys., Vol 22 (2002), 1233-1261

The cyclicity of period annulus of degenerate quadratic Hamiltonian system with elliptic segment (with S.-N. Chow and C. Li), Ergod. Th. & Dynam. Sys., Vol 22 (2002), 349-374

Persistence of invariant tori on submanifolds in Hamiltonian systems (with S-N. Chow and Y. Li), J. Nonl. Sci., Vol 12, No 6 (2002), 585-617

Center manifolds for invariant sets of flows (with S.-N. Chow and W. Liu), J. Differential Equations, Vol 168 No 2 (2000), 355-385

Center manifolds of invariant manifolds (with S.-N. Chow and W. Liu), Trans. Amer. Math. Soc., Vol 352 No 11 (2000), 5179-5211

Almost automorphic and almost periodic dynamics in skew-product semiflows, Part I: Almost automorphy and almost periodicity; Part II (with W. Shen): Skew-product semiflows; Part III (with W. Shen): Applications to differential equations, Memoirs Amer. Math. Soc., Vol 136 No 647 (1998), 1-93

Convergence in almost periodic Fisher and Kolmogorov models (with W. Shen), J. Math. Bio., Vol 37 (1998), 84-102

A variational problem related to phase transition of liquid crystals (with X. Pan), Commun. Appl. Nonl. Anal., Vol 5 No 1 (1998), 1-31

Topological dynamics and differential equations (with G. R. Sell and W. Shen), Contemp. Math., Vol 215 (1997), 279-297

Ergodicity of minimal sets in scalar parabolic equations (with W. Shen), J. Dynam. Differentail Equations, Vol 8 No 2 (1996), 299-323

On minimal sets of scalar parabolic equations with skew-product structure (with W. Shen), Trans. Amer. Math. Soc., Vol 347 No 11 (1995), 4413-4431

Dynamics of almost periodic scalar parabolic equations (with W. Shen), J. Differential Equations, Vol 122 No 1 (1995), 114-136

Asymptotic almost periodicity of scalar parabolic equations with almost periodic time dependence (with W. Shen), J. Differential Equations, Vol 122 No 2 (1995), 373-397

Center manifolds and stability for skew-product flows (with S.-N. Chow), J. Dynam. Differential Equations, Vol 6 No 4 (1994), 543-582

Hopf bifurcation from non-periodic solutions of differential equations II (with R. A. Johnson), J. Differential Equations, Vol 107 No 2 (1994), 310-340

The Melnikov method and elliptic equations with critical exponent (with R. A. Johnson and X. Pan), Indiana Univ. Math. J., Vol 43 No 3 (1994), 1045-1077

Singular solutions of elliptic equation $\Delta u - u + u^p = 0$ (with R. A. Johnson and X. Pan), Annali di Matematic\'a prera ed Appli\'cata (IV), Vol CLXVI (1994), 203-225

Generalized integral manifold theorem, J. Differential Equations, Vol 102 No 1 (1993), 153-187

Stability of integral manifold and orbital attraction of quasi-periodic motion, J. Differential Equations, Vol 102 No 2 (1993), 278-322

Positive solutions of super-critical elliptic equations and asymptotics (with R. A. Johnson and X. Pan), Commun. Partial Differential Equations, Vol 18 (5&6) (1993), 977-1019

Singular ground states of semi-linear elliptic equations via invariant manifolds theory (with R. A. Johnson and X. Pan), Nonlear Analysis, TMA, Vol 20 (1993), 1279-1302