Multiple periodic solutions of differential delay equations via Hamiltonian systems (II)

Mathematics

• Differential Delay Equations 100%
• Hamiltonian Systems 64%
• Periodic Solution 55%
• Formulation 44%
• Group Action 22%
• Index Theory 20%
• Critical point 19%
• Compact Group 17%
• Odd 15%
• Equivariant 15%
• Subspace 11%
• Denote 10%
• Invariant 9%
• Integer 8%
• Gradient vector 7%
• Skew symmetric matrix 7%
• Galerkin Approximation 6%
• Well-defined 5%
• Continue 4%
• Vector Field 4%
• Hilbert space 3%
• Symmetry 3%
• Theorem 2%

Engineering & Materials Science

• Hamiltonians 84%
• Hilbert spaces 23%