Xuwen Chen

Brown Univ. Math. Dept.
Box 1917
151 Thayer Street
Providence, RI 02912

 

Email:
Office: 117 Kassar-Gould House
Phone: (401) 863-
7959
Fax: (401) 863-9013

 

I am a Tamarkin Assistant Professor in the Department of Mathematics at Brown University.

Current Courses

·        Spring 2013, MATH 180, Intermediate Calculus, MWF 12:00-12:50.

·        Fall 2012, MATH 180, Intermediate Calculus, MWF 10:00-10:50, 1:00-1:50.

Research Papers and Preprints

8.     (with Justin Holmer) On the Rigorous Derivation of the 2D Cubic Nonlinear Schrödinger Equation from 3D Quantum Many-Body Dynamics, 41pp, submitted, arXiv:1212.0787.

7.     On the Rigorous Derivation of the 3D Cubic Nonlinear Schrödinger Equation with A Quadratic Trap, 30pp, submitted, arXiv:1204.0125.

6.     Collapsing Estimates and the Rigorous Derivation of the 2d Cubic Nonlinear Schrödinger Equation with Anisotropic Switchable Quadratic Traps, Journal de Mathématiques Pures et Appliquées 98 (2012), no. 5, 450-478. DOI: 10.1016/j.matpur.2012.02.003. (arXiv:1102.0593)

5.     Ph.D. Thesis, University of Maryland - College Park, 2012. Methods of Harmonic Analysis Applied to Bose-Einstein Condensation. pdf 

4.     Second Order Corrections to Mean Field Evolution for Weakly Interacting Bosons in the Case of Three-body Interactions, Archive for Rational Mechanics and Analysis 203 (2012), no. 2, 455-497. DOI: 10.1007/s00205-011-0453-8. MR2885567. (arXiv:1011.5997)

3.     Elementary Proofs for Kato Smoothing Estimates of Schrödinger-Like Dispersive Equations, Contemporary Mathematics 581 (2012), 63-68. DOI: 10.1090/conm/581/11487. (arXiv:1007.1491)

2.     Classical Proofs of Kato Type Smoothing Estimates for the Schrödinger Equation with Quadratic Potential in Rⁿ¹ with Application, Differential and Integral Equations 24 (2011), no. 3-4, 209-230. MR2757458 (2011m:35303). pdf (arXiv:1003.4330)

1.     (with Yan-Ping Xiao, Mei-Mei Lai, Ji-Xuan Hou, and Quan-Hui Liu) A Secondary Operator Ordering Problem for a Charged Rigid Planar Rotator in Uniform Magnetic Field, Communication of Theoretical Physics, 44 (2005), No. 1, 49-50. DOI: 10.1088/6102/44/1/49.

Invited Talks

11.   Feb. 6th, 2013: On the Rigorous Derivation of the 3D Cubic Nonlinear Schroedinger Equation with A Quadratic Trap, Mathematical Physics & Probability Seminar, University of California, Davis, CA.

10.   Feb. 4th, 2013: On the Rigorous Derivation of the 2D Cubic Nonlinear Schroedinger Equation from 3D Quantum Many-Body Dynamics, PDE/Analysis Seminar, University of California, Berkeley, CA.

9.     Feb. 1th, 2013: On the Rigorous Derivation of the 2D Cubic Nonlinear Schroedinger Equation from 3D Quantum Many-Body Dynamics, PDE Seminar, Brown University, Providence, RI.

8.     Oct. 23rd, 2012: On the Rigorous Derivation of the 3D Cubic Nonlinear Schroedinger Equation with A Quadratic Trap, BU/Brown PDE Seminar, Brown University, Providence, RI.

7.     May 23rd, 2012: On the Rigorous Derivation of the 3D Cubic Nonlinear Schroedinger Equation with A Switchable Quadratic Trap, PDE Seminar, Tsinghua University, Beijing, China.

6.     Mar. 18th, 2012: The Rigorous Derivation of the 2d Cubic NLS with Anisotropic Switchable Quadratic Traps, 2012 Spring Eastern AMS Sectional Meeting, George Washington University, Washington, DC.

5.     Jan. 17th, 2012: The Rigorous Derivation of the 2d Cubic Nonlinear Schrödinger Equation with Anisotropic Switchable Quadratic Traps, Harmonic Analysis and Differential Equations Seminar, University of Illinois, Urbana, IL.

4.     Nov. 30th, 2011: The Rigorous Derivation of the 2d Cubic Nonlinear Schrödinger Equation with Anisotropic Switchable Quadratic Traps, Analysis Seminar, University of Texas, Austin, TX.

3.     May 5th, 2011: Second Order Corrections to Mean Field Evolution for Weakly Interacting Bosons in The Case of 3-body Interactions, PDE/Applied Math Seminar, University of Maryland, College Park, MD.

2.     March 14th, 2011: On the Uniqueness of Solutions to the Gross-Pitaevskii Hierarchy with A Switchable Quadratic Trap, Applied PDE RIT, University of Maryland, College Park, MD.

1.     May 21st, 2010: Classical Proofs of Kato Type Smoothing Estimates for the Schrödinger Equation with Quadratic Potential in Rⁿ¹ with Application, Analysis Seminar, SUNY Stony Brook, Stony Brook, NY.