This paper is devoted to studying symmetries of certain kinds of k-cosymplectic
Hamiltonian systems in first-order classical field theories. Thus, we introduce a
particular class of symmetries and study the problem of associating conservation
laws to them by means of a suitable generalization of Noether’s theorem.
Marrero, J. [et al.]. On a kind of Noether symmetries and conservation laws in k-cosymplectic field theory. "Journal of mathematical physics", Febrer 2011, vol. 52, núm. 2, p. 1-20.