Cyclotomic Invariant
Let 
be an Odd Prime and 
the Cyclotomic Field of 
th Roots of unity over the rationalField. Now let 
be the Power of which divides the Class Number 
of . Then thereexist Integers 
and 
such that
for all sufficiently large
. For Regular Primes, 
.
References
Johnson, W. ``Irregular Primes and Cyclotomic Invariants.'' Math. Comput. 29, 113-120, 1975.
- Undecagon
- Undecidable
- Undecillion
- Undetermined Coefficients Method
- Undulating Number
- Unduloid
- Unexpected Hanging Paradox
- Unfinished Game
- Unhappy Number
- Unicursal Circuit
- Uniform Apodization Function
- Uniform Boundedness Principle
- Uniform Convergence
- Uniform Distribution
- Uniform Polyhedron
- Uniform Variate
- Unimodal Distribution
- Unimodal Sequence
- Unimodular Group
- Unimodular Matrix
- Unimodular Transformation
- Union
- Uniplanar Double Point
- Unipotent
- Unique