A Curvy Math to Salvation
Norbert Schwarzer · 2022
This chapter shows how various extensions and generalizations lead to a great variety of metric options of which all are treatable with sums of Laplace, respectively Klein–Gordon equations. This multitude of degrees of freedom and the corresponding duality of metric and wave functions gives the impression of body-soul-structures. the occurrence of complex numbers in connection with the scale factors or scale functions must have a deeper meaning than just the one of an intermediate by-product. After all, negative numbers can be seen as borrowed length elements, complex numbers as borrowed surfaces, and so on. Classically the inner Schwarzschild solution has been assumed to have a matter-core of a perfect fluid. Therefore, Schwarzschild had to introduce certain terms for the energy momentum tensor into the classical Einstein field equations.