Branch Point
An argument at which identical points in the Complex Plane are mapped to different points. For example, consider
Then
, but 
, despite the fact that 
.Pinch Points are also called branch points.See also Branch Cut, Pinch Point
References
Arfken, G. Mathematical Methods for Physicists, 3rd ed. Orlando, FL: Academic Press, pp. 397-399, 1985. Morse, P. M. and Feshbach, H. Methods of Theoretical Physics, Part I. New York: McGraw-Hill, pp. 391-392 and 399-401, 1953.
- Noble Number
- Node (Algebraic Curve)
- Node (Fixed Point)
- Node (Graph)
- Noetherian Module
- Noetherian Ring
- Noether-Lasker Theorem
- Noether's Fundamental Theorem
- Noether's Transformation Theorem
- Noise
- Noise Sphere
- Nolid
- Nome
- n-Omino
- Nomogram
- Nonagon
- Nonagonal Number
- Nonagram
- Nonassociative Algebra
- Nonassociative Product
- Nonaveraging Sequence
- Noncentral Distribution
- Noncommutative Group
- Nonconformal Mapping
- Nonconstructive Proof