A Structural Model of Dark Mass Evolution

**Changes in Version 2:** – Introduced hypothesis on spiral arm formation via phase resonance. – Refined explanation of the model’s resolution of the central cusp problem. – Adjusted terminology for clarity and consistency. – Added note on AI-assisted translation and structural editing to reduce authorial clumsiness. – Provided contact email for feedback and collaboration.

**Changes in Version 3:** – The article has been restructured for clarity and coherence. Minor errors have been corrected. Several points in the “Explanatory Power of the Concept” section have been revised.  New predictions have been added. A statement has been introduced asserting the mathematical impossibility of naked singularities within the framework of the model.