Recent content by Steven Wang

In Landau's Mechanics, if an inertial frame \textit{K} is moving with an infinitesimal velocity \textbf{ε} relative to another inertial frame \textit{K'}, then \textbf{v}'=\textbf{v}+\textbf{ε}. Since the equations of motion must have the same form in every frame, the Lagrangian L(v^2) must be...

I am interesting in symplectic geometry now. But I have only little knowledge about it. Can someone show me some materials or courses to learn or understand this subject. I want to know the classic articles and books about symplectic geometry and who are the experts in this field. Thank you .

Thank you very much. I just know some basic concepts about membrane. In theoretical physics and maths, there are some theory about membrane(in string theory or relative theory, I'm not sure). For example, there exist a surface whose area is the smallest surface that bound with a given space...

I am really interested in both them. I also want to make some connection between the real membrane structure and the crazy theoretical things. Can you make some suggestion. Thank you very much.

Sorry, I mean the membrane structure, like soap-bubble...

I am interested in membrane recently.Can someone show the abc knowledge about membrane. I major in mechanics and I concern about the maths, physics and mechanics of membrane. Can somebody recommend some classic books and articles about this subject. Thanks.:smile:

Thank you !

I have a problem, in Newton's second law F=m*a in inertial frame. In the accelerated frame a mass should be affected by a inertial force, but the force in the original inertial frame don't change, so real force is just like the temperature and will be the same in different frames?