Elastic scattering of pi (+/-) mesons on H-3 and He-3 nuclei at energies ar
ound the Delta (33)(1232) resonance is considered. The amplitudes for singl
e and double scattering are calculated oil the basis of the nonrelativistic
diagram technique. The spin and isospin structure of peon-nucleon amplitud
es is fully taken into account. The resulting theoretical predictions for t
he differential cross sections are compared with available experimental dat
a. (C) 2001 MAIK "Nauka/Interperiodica".