How to transition from Schrödinger equations to relativistic equations

The transition from the Schrödinger equation to relativistic equations is a generalization aimed at adhering to the principles of relativistic invariance, incorporating spin and quantum-field effects. This is realized in the Klein-Gordon and Dirac equations, and in the new paradigm — through discrete quantum-digital operators with extended logic and topology. This represents a synthesis of classical and new approaches for a complete description of elementary particles and their interactions.