  We apply Pauli-Villars regularization and discrete light-cone quantization to
the nonperturbative solution of a (3+1)-dimensional model field theory. The
matrix eigenvalue problem is solved for the lowest-mass state with use of the
complex symmetric Lanczos algorithm. This permits the calculation of each
Fock-sector wave function, and from these we obtain values for various
quantities, such as average multiplicities and average momenta of constituents,
structure functions, and a form factor slope.
