Erratum: Constraint algorithm for singular field theories in the $ k $-cosymplectic framework

The aim of this paper is to develop a constraint algorithm for singular classical field theories in the framework of \begin{document}$ k $\end{document} -cosymplectic geometry. Since these field theories are singular, we need to introduce the notion of \begin{document}$ k $\end{document} -precosymplectic structure, which is a generalization of the \begin{document}$ k $\end{document} -cosymplectic structure. Next \begin{document}$ k $\end{document} -precosymplectic Hamiltonian systems are introduced in order to describe singular field theories, both in Lagrangian and Hamiltonian formalisms. Finally, we develop a constraint algorithm in order to find a submanifold where the existence of solutions of the field equations is ensured. The case of affine Lagrangians is studied as a relevant example.