Tuoc Phan,
Professor

Department of Mathematics

University of Tennessee

403 Circle Drive, Knoxville TN 37996-1320

** Office**: 211 Ayres Hall

** Email** : tphan2 (at) utk dot edu

** Phone**: 865-974-4329

Department of Mathematics

University of Tennessee

403 Circle Drive, Knoxville TN 37996-1320

Welcome to Phan's homepage! I am a professor at the Department of Mathematics, The University of Tennessee-Knoxville. I received the bachelor of science degree majoring in mathematics in 2000 from the University of Science. I did my graduate study in the University of Minnesota (Twin Cities-Minnesota-US) and obtained my Ph.D. degree in 2007. I was a postdoc at The University of British Columbia (2007 - 2010), and The University of Tennessee - Knoxville (2010 - 2012). My research is in partial differential equations. I study existence, uniqueness, and regularity estimates of solutions. I also work on nonlinear dynamics of solutions, and optimal control problems in mathematical biology. The math formula above is an a-priori estimate of the unknown solution \(u\) of a class singular-degenerate coefficient PDEs. This formula appears in my recent work, which is a joint work with Hongjie Dong and published here by the AMS. Additional information about me can be found in this article (in Vietnamese) published by Vietnamnet, and also in an interview video (in Vietnamese) in the #toan0mau series produced by professor H. V. Tran.

*Harnack inequality for singular or degenerate parabolic equations in non-divergence form*(with S. Cho, and J. Fang), (2024), [arXiv:2409.09437].*On linear elliptic equations with drift terms in critical weak spaces*(with H. Kim and T.-P. Tsai), submitted (2023), [arXiv:2312.11215].

*Sobolev estimates for singular-degenerate quasilinear equations beyond the \(A_2\) class*(with H. Dong and Y. Sire), The Journal of Geometric Analysis, Volume 34, article number 286, (2024) [Journal article], [ arXiv:2305.07634].*Nondivergence form degenerate linear parabolic equations on the upper half space*(H. Dong and H. V. Tran), Journal of Functional Analysis (2024), [Journal article], [arXiv:2103.08033].*On stationary Navier-Stokes equations in the upper-half plane*(with Adrian D. Calderon and Van Le), Acta Applicandae Mathematicae (2024), [Journal article], [arXiv:2306.00319].*Weighted mixed-norm \(L_p\)-estimates for equations in non-divergence form with singular coefficients: the Dirichlet problem*(with H. Dong), Journal of Functional Analysis (2023), [Journal article], [arXiv:2103.08033].*Degenerate linear parabolic equations in divergence form on the upper half space*(with H. Dong and H. V. Tran), Transactions of the American Mathematical Society (2023), [Journal article], [arXiv:2107.08033].*On trace theorems for weighted mixed norm Sobolev spaces and applications*, Potentials and Partial Differential Equations: The Legacy of David R. Adams, Vol 8, Advances in Analysis and Geometry (2023), [arXiv:2205.04941].*A boundary layer problem in non-flat domains with measurable viscous coefficients*(with Dario V. Castillo), Studies in Applied Mathematics, (2022), [Journal article].*On parabolic and elliptic equations with singular or degenerate coefficients*(with H. Dong), Indiana University Mathematics Journal, accepted, [arXiv].*Boundary Lebesgue mixed-norm estimates for non-stationary Stokes systems with VMO coefficients*(with H. Dong and D. Kim), Communications in Partial Differential Equations, https://doi.org/10.1080/03605302.2022.2084627, arXiv:1910.00380, [arXiv].

- Associate Editor: Evolution Equations and Control Theory (since 06/2021).
- Member of Editorial Board: Electronic Journal of Differential Equations (since 07/2021).
- Editor (member): Nonlinear Dispersive Waves and Fluids, Contemporary Mathematics, Volume: 725, 2019.

- My interview (inVietnamese) with Vietnamnet about virtual teaching is here.
- An article about me (in Vietnamese) in Vietnamnet.
- Phan's interview (in Vietnamese) in #toan0mau series.
- My lecture in Diễn Giải Toán Học 2020: video (in Vietnamese) and lecture notes.