Virginia TechBowden, Robert L.Sancaktar, SelimZweifel, Paul F.2014-04-092014-04-091976-01Bowden, R. L.; Sancaktar, S.; Zweifel, P. F., "Multigroup neutron transport. I. Full range," J. Math. Phys. 17, 76 (1976); http://dx.doi.org/10.1063/1.5227880022-2488http://hdl.handle.net/10919/47062A functional analytic approach to the N_group, isotropic scattering, particle transport problem is presented. A full_range eigenfunction expansion is found in a particularly compact way, and the stage is set for the determination of the half_range expansion, which is discussed in a companion paper. The method is an extension of the work of Larsen and Habetler for the one_group case.en-USIn Copyrightneutron transportparticle scatteringArticle - Refereedhttp://scitation.aip.org/content/aip/journal/jmp/17/1/10.1063/1.522788https://doi.org/10.1063/1.522788