Murphy G J

Publications in Math-Net.Ru

1. 2.2. The spectral radius formula in quotient algebras
   
   Zap. Nauchn. Sem. LOMI, 81 (1978),  41
2. 1.2. The vanishing interior of the spectrum
   
   Zap. Nauchn. Sem. LOMI, 81 (1978),  39–40