Mathematics
Linear Time-varying Systems
48%
Time-varying Systems
38%
Operator
37%
Nest Algebra
30%
Infinite-dimensional Systems
25%
Invertible
24%
Hilbert space
21%
Linear Systems
19%
Causality
19%
Invariant
18%
Controller
18%
Invariant Subspace
18%
Time-varying
17%
Gap Metric
17%
Braces
14%
Stabilization
14%
Weak Limit
13%
Perturbation
13%
Coprime
12%
Operator Algebras
12%
Periodic Systems
12%
Nest
11%
Second-order Systems
11%
Infinite Systems
11%
Ball
11%
Asymptotic Behavior
10%
Sufficient Conditions
10%
Robustness
9%
Necessary Conditions
8%
First-order System
8%
Chain
8%
Hubert Space
8%
Discrete-time
8%
Fractional
7%
Isometric
7%
Damped
7%
Physics
7%
Polynomial
7%
Realization Theory
7%
Coprime Factorization
7%
Pole Assignment
7%
Robust Stabilization
7%
Compact Operator
7%
Capacitor
7%
Graph Representation
7%
Stable Rank
7%
Robust Optimization
7%
Covariance Operator
7%
Isomorphism theorems
7%
Continuous Time
7%
Engineering & Materials Science
Time varying systems
100%
Hilbert spaces
42%
Mathematical operators
37%
Linear systems
29%
Algebra
28%
Factorization
21%
Stabilization
20%
Controllers
17%
Banach spaces
15%
Polynomials
9%
Physics
9%
Sampled data control systems
8%
Kinematics
8%
Phonons
8%
Controllability
8%
Cascade connections
8%
Transfer functions
7%
Continuous time systems
7%
Feedback
6%
Costs
6%
Convolution
5%
State feedback
5%