2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/217498We consider the minimal conformal model describing the tricritical Ising model on the disk and on the upper half plane. Using the coulomb-gas formalism we determine its consistents boundary states as well as its 1-point and 2-point correlation functions.20 pages, no figure. Version 2:A paragraph for the calculation of the 2-point correlators was added. Some typos and garammatical errors were corrected.Version 3: Equations 24 are modified. Version 4 : new introduction and minor correctionsHigh Energy Physics - TheoryStatistical Mechanicstext