Kneser-Sommerfeld Formula
Let 
be a Bessel Function of the First Kind, 
a Neumann Function, and 
thezeros of 
in order of ascending Real Part. Then for 
and 
,
References
Iyanaga, S. and Kawada, Y. (Eds.). Encyclopedic Dictionary of Mathematics. Cambridge, MA: MIT Press, p. 1474, 1980.
- Absolute Error
- Absolute Geometry
- Absolutely Continuous
- Absolute Pseudoprime
- Absolute Square
- Absolute Value
- Absorption Law
- Abstraction Operator
- Abundance
- Abundant Number
- Acceleration
- Accidental Cancellation
- Accumulation Point
- Achilles and the Tortoise Paradox
- Ackermann Function
- Ackermann Number
- Acnode
- Acoptic Polyhedron
- Action
- Acute Angle
- Acute Triangle
- Adams-Bashforth-Moulton Method
- Adams' Method
- Addend
- Addition