Photon Trajectories and Wavefront Structure Near a Black Hole

This record represents the Master Version (V3) of the research line on photon trajectories and wavefront structure near a black hole.

This version consolidates and supersedes previous versions and related records. The theoretical framework focuses on photon propagation in strong gravitational fields, including null geodesic structure, photon sphere dynamics, and wavefront deformation near the critical impact parameter. The work provides a unified interpretation of photon trajectory behavior and observable optical signatures near black holes within the standard framework of general relativity.

Official continuation of this research topic (including Part II and subsequent theoretical development) is reserved exclusively for the author. Independent works inspired by earlier versions do not constitute official continuation of this research line.

Related earlier versions:
V1: Photon Trajectories and Wavefront Propagation Near a Black Hole  
V2: Photon Trajectories and Wavefront Structure Near a Black Hole