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Problem

Problem 3-2: Relative asymptotic growths
Indicate, for each pair of expressions (A, B) in the table below, whether A is O, o, Ω, ω, or Θ of B. Assume that k ≥ 1, ε > 0, and c > 1 are constants. Your answer should be in the form of the table with "yes" or "no" written in each box.

A B O o Ω ω Θ
log^kn n^ε
n^k c^n
sqrt(n) n^sin(n)
2^n 2^(n/2)
n^logc c^ln(n)
log(n!) log(n^n)

Solution

A B O o Ω ω Θ
log^kn n^ε yes yes no no no
  1. a1
  2. a2
    • L'Hôpital's rule
A B O o Ω ω Θ
n^k c^n yes yes no no no

b

A B O o Ω ω Θ
sqrt(n) n^sin(n) no no no no no

c

A B O o Ω ω Θ
2^n 2^(n/2) no no yes yes no

d

A B O o Ω ω Θ
n^logc c^ln(n) no no yes yes no

e

A B O o Ω ω Θ
log(n!) log(n^n) yes no yes no yes
  1. f1
    • 夾擠
  2. f2