Major Obstacles
Gauge Conditions (Coordinate Conditions).
- Examples of Gauge Conditions
- Maximal slicing
- Minimal Distortion Shift
- These equations are elliptic! (boundary conditions)
We want to construct the Lapse and shift that:
- Minimize grid stretching; Help causal differencing
- Not too expensive to compute
- adapt to outer boundary
Questions: Hyperbolic Formalisms, other ADM formalisms, GAUGE conditions!!!!!!!!!
Blending energy from normal deflection