geometric methods in number theory
10753
Natural number solutions to $\frac{xy}{x+y}=n$ (equivalent to $\frac 1x+\frac 1y=\frac 1n$)
26790
Proving the geometric sum formula by induction
123891
There are finitely many maps on nonnegative integers satisfying $\phi(ab)=\phi(a)+\phi(b)$
35525
Methods to compute $\sum_{k=1}^nk^p$ without Faulhaber's formula
88759
Proofs of Sylow theorems
109180
Deriving Sum of a Geometric Progression
102391
Abel summability under the hypothesis $a_n \ge 0$
147746
Characterisation of the squares of the symmetric group
119779
Sequences of arithmetic and geometric mean
86150
Geometric interpretation of matrices
137278
Quotient field of gaussian integers
153647
Elementary number theory and quadratic
114777
Using Rouché's theorem to bound zeroes of partial sums of $e^z$
41412
Inequality in number theory
110167
A conjecture with connection to the $abc$-conjecture
60877
Geometric series and big theta
110472
Existence of a Pivot Point in Euclidean Geometry