Hermann Minkowski

1. Spacetime Interval

The invariant metric of special relativity combining space and time.

$$ ds^2 = c^2dt^2 - (dx^2 + dy^2 + dz^2) $$

2. Minkowski Inequality

The triangle inequality for \(L^p\) spaces.

$$ \left( \sum |x_i + y_i|^p \right)^{1/p} \le \left( \sum |x_i|^p \right)^{1/p} + \left( \sum |y_i|^p \right)^{1/p} $$