Mathematics
Hamiltonian Systems
73%
Periodic Solution
57%
Minimal Period
44%
Differential Delay Equations
32%
Index Theory
25%
Palais-Smale Condition
21%
Second Order Hamiltonian System
20%
Asymptotically Linear
19%
Critical Point Theory
17%
Galerkin Approximation
14%
Formulation
13%
Type Theory
12%
Variational Methods
10%
Linking Theorem
10%
Homoclinic Orbit
8%
Sign Change
8%
Linear Systems
8%
Denote
7%
Group Action
7%
Scalar, inner or dot product
7%
Estimate
7%
Integer
6%
Convexity
6%
Strong Resonance
6%
Critical point
5%
Gradient
5%
Potential Function
5%
Conley Index
5%
Compact Group
5%
Odd
5%
Engineering & Materials Science
Hamiltonians
100%
Hilbert spaces
7%
Orbits
6%
