Mathematics
Harmonic Oscillator
85%
Askey-Wilson Polynomials
68%
Classical Orthogonal Polynomials
57%
Analogue
50%
Orthogonality Relations
49%
Fourier Transformation
44%
Discrete Variables
43%
Elementary Functions
40%
Hahn Polynomials
37%
Q-orthogonal Polynomials
35%
Polynomial
34%
Orthogonality
32%
Explicit Solution
30%
Separation of Variables
30%
Photon
30%
Coherent States
29%
Quantization
28%
Standards
28%
Annihilation
27%
Transform
25%
Operator
25%
Form
24%
Quantum Mechanics
24%
Initial Value Problem
24%
Wave equation
24%
Computer Algebra
24%
Quantum Electrodynamics
24%
Special Functions
23%
kernel
23%
Nonlinear Equations
23%
Meixner Polynomials
22%
Invariance
21%
Model
21%
Wave Function
21%
Cauchy Problem
21%
Rational function
20%
Berry Phase
19%
Physics
19%
Summation Formula
18%
Propagator
18%
Grid
18%
Maxwell's equations
18%
Neutrinos
18%
Integral Representation
18%
Energy-momentum Tensor
17%
Charlier Polynomials
17%
Hypergeometric Functions
16%
Ramanujan
16%
Invariant
16%
Physics & Astronomy
harmonic oscillators
100%
polynomials
81%
operators
55%
algebra
44%
analogs
42%
quantum mechanics
39%
boundary value problems
37%
Clebsch-Gordan coefficients
36%
rational functions
32%
oscillators
32%
Cauchy problem
30%
orthogonality
30%
nonlinear equations
29%
wave functions
28%
Fourier transformation
27%
compressing
26%
invariance
21%
Racah coefficient
20%
charged particles
19%
particle beams
19%
electromagnetic fields
19%
photons
19%
matrices
19%
parametric amplifiers
18%
wave packets
17%
light beams
17%
addition theorem
17%
Green's functions
16%
propagation
16%
harmonic oscillation
15%
brackets
15%
radiation distribution
15%
draft
15%
hypergeometric functions
15%
neutrinos
14%
exponential functions
13%
readers
13%
laser modes
13%
grids
12%
laser beams
12%
optics
12%
statistics
12%
atoms
11%
electrodynamics
11%
waveguides
11%
Maxwell equation
11%
physics
11%
single crystals
10%
cavities
10%
Engineering & Materials Science
Hamiltonians
81%
Nonlinear equations
56%
Polynomials
49%
Wave functions
48%
Parametric oscillators
33%
Initial value problems
32%
Algebra
28%
Schrodinger equation
27%
Photons
27%
Wave packets
18%
Fokker Planck equation
17%
Statistics
17%
Orthogonal functions
17%
Bessel functions
16%
Solitons
16%
Rational functions
15%
Wave equations
14%
Difference equations
14%
Exponential functions
14%
Mathematical operators
14%
Fourier series
13%
Finance
13%
Physics
13%
Eigenvalues and eigenfunctions
12%
Amplification
11%
Scattering
11%
Uncertainty
10%
Nonlinear systems
9%
Particle beams
9%
Computational complexity
9%
Boundary conditions
8%
Geometry
7%
Green's function
6%
Laser beams
6%
Invariance
6%
Byproducts
6%
Waveguides
5%
Electrons
5%
Probability distributions
5%
Thin films
5%
Momentum
5%
Electrodynamics
5%