Sommerfeld's Formula
There are (at least) two equations known as Sommerfeld's formula. The first is
where
is a Bessel Function of the First Kind. The second states that under appropriate restrictions,
See also Weyrich's Formula
References
Iyanaga, S. and Kawada, Y. (Eds.). Encyclopedic Dictionary of Mathematics. Cambridge, MA: MIT Press, pp. 1472 and 1474, 1980.
- Ferrers Diagram
- Ferrers' Function
- Ferrier's Prime
- Feuerbach Circle
- Feuerbach Point
- Feuerbach's Conic Theorem
- Feuerbach's Theorem
- Feynman Point
- FFT
- Fiber
- Fiber Bundle
- Fiber Space
- Fibonacci Dual Theorem
- Fibonacci Hyperbolic Cosine
- Fibonacci Hyperbolic Cotangent
- Fibonacci Hyperbolic Sine
- Fibonacci Hyperbolic Tangent
- Fibonacci Identity
- Fibonacci Matrix
- Fibonacci n-Step Number
- Fibonacci Number
- Fibonacci Polynomial
- Fibonacci Pseudoprime
- Fibonacci Q-Matrix
- Fibonacci Sequence