Mathematik
Dirac Operator
100%
Interaction
60%
Shell
39%
Electrostatics
38%
Zigzag
34%
Boundary Integral
30%
Eigenvalue
27%
Dirichlet Laplacian
26%
Spectral Properties
26%
Scalar
25%
Spectrality
24%
Operator
23%
Resolvent
21%
Limiting Absorption Principle
19%
Extension Theory
18%
Integral Operator
18%
Hypersurface
17%
Scattering Matrix
16%
Differential operator
16%
Wave Operator
16%
Symmetric Operator
15%
Representation Formula
15%
Closed curve
14%
Self-adjointness
14%
Boundary Element Method
14%
Landau Levels
13%
Tube
13%
Straight Line
13%
Self-adjoint Operator
13%
Boundary conditions
12%
Numerical Approximation
12%
Elliptic Operator
12%
Three-dimensional
12%
Qualitative Properties
12%
Scattering
12%
Eigenvalue Problem
11%
Completeness
11%
Perturbation
10%
Formulation
8%
Interface Conditions
8%
Family
8%
Differential Expression
8%
Curve
8%
Continuous Spectrum
7%
Trace Formula
7%
Spectral Gap
7%
Essential Spectrum
7%
Exterior Domain
7%
Term
7%
Measurable function
6%
Physik & Astronomy
operators
40%
eigenvalues
16%
S matrix theory
14%
scalars
14%
interactions
12%
tubes
9%
perturbation
8%
completeness
7%
curves
7%
smear
6%
electrostatics
5%