Sierpi
ski, W. 谢尔品斯基（1882—1969）
- Delone, B.N.(Делоне, Б.Н.)
- del operator
- Delos constant
- Delos problem
- Delsarte, J.F.
- delta-amplitude
- delta-curve
- delta-distribution
- delta-fashion sequence
- delta-field
- delta-function
- delta-function method
- delta-functor
- delta-genus
- deltahedron
- delta-isomorphism
- delta-measure
- delta-metric
- delta-neighbourhood
- delta-Neumann problem
- delta-number
- dominating strategy
- domination
- domination number
- domination principle