Degree sequence of a graph has repeated entries
13226
If $n$ is a natural number $\ge 2$ how do I prove that any graph with $n$ vertices has at least two vertices of the same degree?
59831
How to relate combinatorial proof to bipartite graphs?
124666
Hamiltonian and non-Hamiltonian connected graph using the same degree sequence
129299
Fibonacci sequence and Euclidean algorithm's connection.
54749
How to find the number of perfect matchings in complete graphs?
142917
Graph vertex chromatic number in a union of 2 sub-graphs
37754
Number of vertices of a complete graph with $n$ edges
27373
Graph Proof by induction.
116405
Recurrence relation for right-angled triangles stuck-together
153692
Generating and solving recurrence relations
71154
Why a complete graph has $\frac{n(n-1)}{2}$ edges?
102539
Min. number of vertices in graph as function of $\kappa(G)$ and $\operatorname{diam}(G)$
76960
Induction for recurrence
27651
Induced sequence of global sections
47443
Iterated polynomial problem
138226
Finding All n-regular graphs on m vertices
91836
Graph series of parabolas