Seifert Form
For 
a given Knot in 
, choose a Seifert Surface 
in for and abicollar 
in 
. If 
is represented by a 1-cycle in 
,let 
denote the homology cycle carried by 
in the bicollar. Similarly, let 
denote 
.The function 
defined by
where lk denotes the Linking Number, is called a Seifert form for
.See also Seifert Matrix
References
Rolfsen, D. Knots and Links. Wilmington, DE: Publish or Perish Press, pp. 200-201, 1976.
- Cylindroid
- Daisy
- d'Alembertian Operator
- d'Alembert Ratio Test
- d'Alembert's Equation
- d'Alembert's Solution
- d'Alembert's Theorem
- Damped Exponential Cosine Integral
- d-Analog
- Dandelin Spheres
- Danielson-Lanczos Lemma
- Darboux Integral
- Darboux-Stieltjes Integral
- Darboux Vector
- Darling's Products
- Dart
- Darwin-de Sitter Spheroid
- Darwin's Expansions
- Database
- Data Structure
- Daubechies Wavelet Filter
- Davenport-Schinzel Sequence
- Dawson's Integral
- Day of Week
- de Bruijn Constant