We apply Pauli-Villars regularization and discrete light-cone quantization to the nonperturbative solution of a $\mathrm{}(3+1)\mathrm{}$-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.

• Received 18 March 1999

DOI:https://doi.org/10.1103/PhysRevD.60.054506