Structure Factor
The structure factor 
of a discrete set 
is the Fourier Transform of 
-scatterers of equalstrengths on all points of ,
References
Baake, M.; Grimm, U.; and Warrington, D. H. ``Some Remarks on the Visible Points of a Lattice.'' J. Phys. A: Math. General 27, 2669-2674, 1994.
- Daubechies Wavelet Filter
- Davenport-Schinzel Sequence
- Dawson's Integral
- Day of Week
- de Bruijn Constant
- de Bruijn Diagram
- de Bruijn Graph
- de Bruijn-Newman Constant
- de Bruijn Sequence
- de Bruijn's Theorem
- Debye Functions
- Debye's Asymptotic Representation
- Decagon
- Decagonal Number
- Decagram
- Decic Surface
- Decidable
- Decillion
- Decimal
- Decimal Expansion
- Decimal Period
- Decision Problem
- Decision Theory
- Decomposition
- Deconvolution