[MST-EUT Theory Series #17] Rigorous Variational and Geometric Derivation of Maxwell Equations - Maxwell方程的嚴格變分與幾何推導 (v1.0-zh)

This work presents a variational and geometric derivation of Maxwell’s equations within the framework of the Mass–Space–Time Entanglement Unified Theory (MST-EUT). Starting from a relativistic spacetime formulation and an entropic field perspective, the electromagnetic field equations are obtained as natural consequences of an underlying action principle. The focus of this document is on structural consistency and conceptual clarity rather than detailed phenomenological fitting. 本文於 MST-EUT(質量–空間–時間糾纏統一理論)框架下,提出一套 Maxwell 方程的變分與幾何推導方式。 藉由相對論時空結構與熵場觀點,電磁場方程可自然地由作用量原理導出。 本文著重於理論結構的一致性與概念層次的釐清,而非詳細的現象學擬合或數值推導。