We consider a parametric semilinear Dirichlet problem with an unbounded and indefinite potential. In the reaction we have the competing effects of a sublinear (concave) term and of a superlinear (convex) term. Using variational methods coupled with suitable truncation techniques. we prove two multiplicity theorems for small values of the parameter. https://www.roneverhart.com/API-1608-II-Recording-and-Mixing-Console-p17720/