Infinite number of conservation laws in two-dimensional superconformal models

Superconformal theories in two-dimensional space-time are considered. Noether's theorem and the Belinfante improvement procedure are extended to superspace where they are used to construct the supercurrent. With its aid, an infinite number of classical conservation laws are derived. These laws are shown to survive quantization in the supersymmetric, non-linear, O(N) sigma model. (orig.)