2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/94333The applicability of the so-called isotropic and anisotropic complete photonic-band-gap (CPBG) models [S. John and J. Wang, Phys. Rev. Lett. {\bf 64}, 2418 (1990)] to capture essential features of the spontaneous emission (SE) of a fluorescent atom or molecule near a band-gap-edge of a CPBG structure is discussed.3 pages, plain latex. $η$ in the LDOS asymptotics near a band-edge is universal in one dimension. For more info on this subject see http://www.amolf.nl/research/photonic_materials_theory/moroz/moroz.htmlQuantum Physicstext