Yushchenko A. V.
          The forms and representations of the Lie algebra sl2(Z)
        We study the structure of integral p-adic forms of the splitting 
          three-dimensional simple Lie algebra over the field of p-adic 
          numbers. We discuss the questions of diagonalizability of such forms 
          and description for maximal diagonal ideals. We consider torsion-free 
          finite-dimensional modules over the splitting three-dimensional simple 
          Lie algebra with integral and p-adic integral coefficients. 
          We describe diagonal modules, demonstrate finiteness of the number of 
          modules in each dimension, and prove a local-global principle for irreducible 
          modules.