Big Omega function
From Wikipedia, the free encyclopedia
The notation 
has at least three meanings in mathematics:
means that the function 
dominates 
in some limit, see Big O notation. In this context 
is referred to as a lower bound.
is the total number of prime factors of 
, counting prime factors with multiplicity
may refer to the Omega function, the inverse of 
, also known as the Lambert W function denoted 
.
, related to the Lambert W Function, is called the Wright Omega Function
means that the function 
dominates 
in some limit, see 
is referred to as a lower bound.
is the total number of 
, counting prime factors with multiplicity
may refer to the Omega function, the inverse of 
, also known as the 
.
, related to the Lambert W Function, is called the A function f(n) is Omega (g) -often written "in the complexity class of Omega(g(n))" if there are values c and n0 such that f(n) >= c g(n) for all n>n0
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