%0 Journal Article %T Constraints in polysymplectic (covariant) Hamiltonian formalism %A G. Sardanashvily %J Physics %D 2000 %I arXiv %X In the framework of polysymplectic Hamiltonian formalism, degenerate Lagrangian field systems are described as multi-Hamiltonian systems with Lagrangian constraints. The physically relevant case of degenerate quadratic Lagrangians is analized in detail, and the Koszul--Tate resolution of Lagrangian constraints is constructed in an explicit form. The particular case of Hamiltonian mechanics with time-dependent constraints is studied. %U http://arxiv.org/abs/math-ph/0008024v2