Intereting Posts

Largest set of perpendicular vectors
Why doesn't $d(x_n,x_{n+1})\rightarrow 0$ as $n\rightarrow\infty$ imply ${x_n}$ is Cauchy?
Prove that $\liminf x_n = -\limsup (-x_n)$
Is every monomorphism an injection?
$\prod_{i=1}^{\infty}{1+(\frac{k}{i})^3}$ for integer k
small o(1) notation
How Find $3x^3+4y^3=7,4x^4+3y^4=16$
Construction of a triangle with given angle bisectors
Motivation behind the definition of GCD and LCM
For each $x,y,z∈\mathbb N$, if $x<y$ then $x+z<y+z$
Radical extension and discriminant of cubic
Proof concerning Mersenne primes
Which non-Abelian finite groups contain the two specific centralizers? – part II
Which of the numbers is larger: $7^{94}$ or $9^{91} $?
Are Lie algebras $u_n$ and $su_n$ simple?

By a $G(n,p)$ graph we mean a graph on $n$ vertices, all possible edges are independently included randomly with probability $p$.

What can be said about the number of connected components? For example, bounds or asymptotic behavior of the expected number of components as $n\rightarrow \infty$ or for $p$ close to 1.

- Software for drawing and analyzing a graph?
- Show that a graph with 9 vertices has at least five vertices of degree 6, or at least six vertices of degree 5.
- Get the adjacency matrix of the dual of a 3-connected $k$-regular $G$ without pen and paper
- Is it possible to draw this picture without lifting the pen?
- How to count the closed left-hand turn paths of planar bicubic graphs?
- Characterization of hierarchically clustered graphs

- Isolated vertex probabilities for different random graphs
- What do the eigenvectors of an adjacency matrix tell us?
- Trees that are isomorphic to a subgraph of a graph G.
- Planar graphs with $n \geq 2$ vertices have at least two vertices whose degree is at most 5
- $\chi(G)+\chi(G')\leq n+1$
- Prove a graph Containing $2k$ odd vertices contains $k$ distinct trails
- Why does this matrix have 3 nonzero distinct eigenvalues
- Is there a formula for finding the number of nonisomorphic simple graphs that have n nodes?
- A variant of the Knight's tour problem
- A closed Knight's Tour does not exist on some chessboards

- Subspace of Noetherian space still Noetherian
- Module endomorphisms with the same kernel
- First four terms of the power series of $f(z) = \frac{z}{e^z-1}$?
- Examples of famous problems resolved easily
- Why does polynomial factorization generalize to matrices
- Proving $\kappa^{\lambda} = |\{X: X \subseteq \kappa, |X|=\lambda\}|$
- Is there a chain rule for integration?
- Is $z^{-1}(e^z-1)$ surjective?
- A proviso in l'Hospital's rule
- Continued fraction of $e^{-2\pi n}$
- Hyperreal measure?
- An easy way to remember PEMDAS
- Knight returning to corner on chessboard — average number of steps
- How does one calculate the amount of time required for computation?
- why is a nullary operation a special element, usually 0 or 1?