Janaswamy, R2024-04-262024-04-262009-0110.1063/1.3122768https://hdl.handle.net/20.500.14394/21398boundary-value problems, Chebyshev approximation, diffusion, eigenvalues and eigenfunctions, parabolic equations, probability, random processes, Schrodinger equation, space-time configurations, stochastic processes,Transitional probabilities for the four-state random walk on a lattice in the presence of partially reflecting boundariesarticle