Math 7332   (Dr. J. S. Zheng)


Office: Math-Phys 3306
Phone: 478 1338
E-mail: szheng at GeorgiaSouthern


 


                            The essence of knowledge is, to apply it.  (Confucius, 551–478 BC).         
                                            

To know the road ahead, ask those coming back.





   
ElectroMagnetic PDE in QM

\( i\hbar\partial_t \psi=-\frac{\hbar^2}{2m}\nabla_A^2 {\psi}+V_e\psi+\mathcal{N} \psi \)


The universe is written in the language of mathematics (Galileo)

"Imagination is more important than knowledge."

"Do not worry about your difficulties in Mathematics. I can assure you mine are still greater."

"Equations are more important to me, because politics is for the present, but an equation is something for eternity."
(Albert Einstein)




Schedule of the class
Class schedule by chapters/sections [Strauss/Evans/Lecture Notes] (tentative)
PDEs from physics (Chapter 1) 1.1 - 1.6
*Separation of variables, Boundary Problems (Chapter 4) 4.1-4.2,4.3*
Fourier series (Chapter 5) 5.1-5.6
Laplace Equations (Chapter 6) 6.1 - 6.3, 6.4*
Exam 1 Chapter 5 and 6
*Greens functions (Chapter 7) 7.1*-7.4*
Computation of Solutions (Chapter 8) 8.1* - 8.5*
Waves in Space* (Wave, Diffusion, Schrödinger)   9.1*, 9.4*,9.5*
**Boundaries in the plane and in space 10.1*-10.7*
*General Eigenvalue Problems 11.1*-11.6*
Exam 2   Exam 2, Chapters 7, 8 and part of 9, 10
Distributions and Fourier Transforms 12.1-12.4, 12.5**
Weak derivatives and Sobolev spaces (Evans, Chapter 5) 12.1-12.4, 12.5**
Second-order elliptic equations, regularity, maximal principles and Harnack's inequality (Evans, Chapter 6) 12.1-12.4, 12.5**
Nonlinear PDEs, calculus of variations 14.1*-14.5*
Numerical methods**
heat, wave, Schrödinger (lecture notes)



Homework/Project assignments   View on Folio


Office/Zoom hours   Monday and Wednesday 2:30-3:45 or by special appointment


Important Calendar/Dates


Please find update test-related files on Folio

Review   Exam     Date  
Review Exam I    Exam I Feb. 28
Review Exam II Exam II  
Review Exam III    Exam III    
Review Final      Final Exam   May 4, Wedn 12:30-2:30

Green's theorem   2d: $$\int_{\partial R}{\bf F}\cdot {\bf n} ds=\int_R\, \mathrm{div}\, {\bf F}\, dA$$

The divergence theorem in 3d (Gauss' theorem): \begin{align} &\int_{\partial\Omega}{\bf F}\cdot {\bf n} d\omega=\int_\Omega \mathrm{div} {\bf F} dV \end{align}



  Electric outflow on the surface



The relativistic Dirac Equation with \(\frac12\)-spin:   \(i \hbar\partial_t\psi = c{\bf \alpha}\widehat{{\bf p}}\psi +\beta mc^2 \psi\)




The nonlinear Dirac equation in electromagnetic field in \(\mathbb{R}^{1+d}\) \begin{align*}%\label{e:dirac3} i\partial_t\Psi=\Big[-\frac{i}{\varepsilon}\sum_{j=1}^{d}\alpha_j \partial_j+\frac{1}{\varepsilon^2}\beta\Big]\Psi +\Big[V(t,{\bf x})I_4-\sum_{j=1}^{d}A_j(t,{\bf x})\alpha_j\Big]\Psi +\mathbf{\mathscr{U}}(\Psi,\Psi^\dagger)\Psi \quad \end{align*}



Live in the twenty second century    Analytical & Numerical HA-PDE arising in Physics and Geometry


Computing Lab