Oscillation criteria for linear matrix Hamiltonian systems
G. A. Grigorian · Proceedings of the American Mathematical Society · 2020
The Riccati equation method is used to establish two new oscillation criteria for linear matrix Hamiltonian systems in a new direction, which is to break the positive definiteness restriction imposed on one of the coefficients of the Hamiltonian system. The obtained results are compared with some known oscillatory criteria.