- #1
BookWei
- 13
- 0
Hi, my classmate asks me an interesting question: For a finite 4D volume in spacetime, its boundary is a 3D close surface. If the 4D volume is a 4D rectangular, the boundary consists of eight 3D surfaces. The boundary condition is specified on these eight 3D surface. Please explain the physical meaning of the boundary conditions on each of these eight 3D surface. We do not know how to explain this question in physics or mathematics. Can someone help us to attack this problem?
Thanks for all responses.
Thanks for all responses.