CYLINDRICAL CONFIGURATION BOUNDARY ELEMENT METHOD 1 CONFIGURACION CILINDRICA 1 ECUACIONES DE DIFUSION DE NEUTRONES 1 FINITE ELEMENT METHOD 1 FLUJO DE NEUTRONES 1 GEOMETRIA 1 GEOMETRY 1 HEAT FLUX 1 Heat flow shape factors for circular rods vith regular polygonal concentric inner bore 1 MAPPING 1 METODO DE ELEMENTO DE CONTORNO 1 NEUTRON FLUX 1 NEUTRONS DIFFUSION EQUATIONS 1 Neutron flux within cylindrical air gaps 1 VECTORES 1