| d'Alembert and D. Bernoulli solutions of wave equation |
| D'Alembertian |
| D'Alembert operator (=D'Alembertian) |
| Dalton's law |
| dark matter (defined in plasma) |
| Davisson--Germer and Thomson experiments (defined in Walter Elsasser) |
| deformation (defined in deformation quantization) |
| deformation quantization |
| deformed Riemannian geometry (defined in quantum Riemannian geometry) |
| delocalized quantum states (defined in Quantum topological order and extended quantum symmetries) |
| \delta~ (defined in automaton) |
| \DeltaG (defined in notations of fundamental concepts in physics) |
| dense subcategory (defined in category of additive fractions) |
| density matrix |
| derivatives of Euler angles (=Euler angle velocity of 123 Sequence) |
| detection (defined in nuclear magnetic resonance principles) |
| detection sensitivity (defined in nuclear magnetic resonance principles) |
| detects (defined in Table of categories and functor properties) |
| determinant |
| determination of Fourier coefficients |
| developments of relativity theories |
| DG (defined in index of differential geometry) |
| diagram (defined in commutative square diagram) |
| diagram of spaces (defined in algebraic topology) |
| diagrams (defined in category theory) |
| diamagnetic susceptibility (defined in magnetic susceptibility) |
| dielectric constant (defined in notations of fundamental concepts in physics) |
| dielectric constant (defined in notations of fundamental concepts in physics) |
| difference between mass and weight |
| differential basis (defined in differential propositional calculus) |
| differential equation of a family of curves |
| differential equation of the family of parabolas |
| differential equations |
| differential extension (defined in differential propositional calculus) |
| differential extension of propositional calculus (=differential propositional calculus) |
| differential feature (defined in differential propositional calculus) |
| Differential Geometry |
| differential inference (defined in differential propositional calculus) |
| differential logic |
| differential proposition (defined in differential propositional calculus) |
| differential propositional calculus |
| differential propositional calculus : appendix 1 |
| differential propositional calculus : appendix 2 |
| differential propositional calculus : appendix 3 |
| differential propositional calculus : appendix 4 |
| differential quality (defined in differential propositional calculus) |
| differential variable (defined in differential propositional calculus) |
| dihedral angle |
| dipole-dipole interactions (defined in spectroscopy topics) |
| dipole-induced dipole interactions (defined in spectroscopy topics) |
| Dirac equation |
| Dirac notation (defined in Dirac notations-delta and observable algebras) |
| Dirac notations-delta and observable algebras |
| Dirac's delta distribution |
| Dirac's delta Laplace transform (defined in Laplace transform of Dirac's delta distribution) |
| direction cosine matrix |
| direction cosine matrix to axis angle of rotation |
| direction cosine matrix to Euler 121 angles |
| direction cosine matrix to Euler 123 angles |
| direction cosine matrix to Euler 131 angles |
| direction cosine matrix to Euler 132 angles |
| direction cosine matrix to Euler 212 angles |
| direction cosine matrix to Euler 213 angles |
| direction cosine matrix to Euler 231 angles |
| direction cosine matrix to Euler 232 angles |
| direction cosine matrix to Euler 312 angles |
| direction cosine matrix to Euler 313 angles |
| direction cosine matrix to Euler 321 angles |
| direction cosine matrix to Euler 323 angles |
| direction cosine matrix to quaternions |
| direction cosines |
| discrete probability distribution function (defined in probability distribution functions in physics) |
| distance modulus (defined in stellar magnitude) |
| distribution of $X$ on $I$ (defined in probability distribution functions in physics) |
| divergence |
| divergence of a vector field (=divergence) |
| DNA (defined in DNA molecular models) |
| DNA double-helix (defined in Bessel functions: applications to diffraction by helical structures) |
| DNA molecular models |
| D(O) (defined in canonical commutation and anti-commutation relations: their representations) |
| dom (defined in category) |
| domain (defined in relation theory) |
| dot product |
| dot product examples |
| double algebroid (defined in superalgebroids in higher dimensions) |
| double algebroid representations (defined in algebraic categories and representations of classes of algebras) |
| double category |
| double cross-polarization (defined in nuclear magnetic resonance principles) |
| double groupoid (defined in homotopy double groupoid of a Hausdorff space) |
| double groupoid (=homotopy double groupoid of a Hausdorff space) |
| double groupoid (defined in weak homotopy double groupoid) |
| double groupoid geometry |
| double groupoid representations (defined in algebraic categories and representations of classes of algebras) |
| double groupoid with connection |
| double groupoid with connection (defined in geometrically defined double groupoid with connection) |
| double-helical DNA structure (defined in Bessel functions and diffraction by helical structures) |
| double quantum algebroid (defined in algebroid structures and extended symmetries) |
| D(P_j P_k) (defined in canonical commutation and anti-commutation relations: their representations) |
| dpdf (defined in probability distribution functions in physics) |
| drag force (defined in ballistics (2D)) |
| drag on a penny (=penny falling from Empire State Building) |
| Drinfel'd module (defined in Yetter-Drinfel'd module) |
| dual code (defined in duality and triality) |
| dual coding (defined in duality and triality) |
| duality (defined in duality and triality) |
| duality (defined in topic on groupoid symmetries and duality) |
| duality (defined in category theory) |
| duality and triality |
| duality in algebraic gemoetry (defined in duality and triality) |
| duality in mathematics |
| duality principle (defined in duality and triality) |
| duality theory (defined in duality and triality) |
| dual labels (defined in Fluorescence cross-correlation spectroscopy (FCCS)) |
| dual numbers (defined in duality and triality) |
| dual of R-groupoid or ringoid (=R-algebroid) |
| dual space (defined in duality and triality) |
| dynamic adjointness (defined in similarity and analogous systems: dynamic adjointness and topological equivalence) |
| dynamical system (defined in groupoid C*-dynamical system) |
| dynamic diagram (defined in general dynamic systems) |
| dynamic modeling diagram (defined in non-commutative dynamic modeling diagrams) |
| dynamic modeling diagrams (defined in similarity and analogous systems: dynamic adjointness and topological equivalence) |
| dynamics (defined in Mathematical structure of physical theories) |
| dynamic self-maintenance and homeostasis (defined in general dynamic systems) |
| dynamic supercategory (defined in variable category) |
| dynamic system (=general dynamic systems) |
| dynamic transition functor (defined in general dynamic systems) |