New posts in Directed Graphs

What is a directed acyclic graph (DAG)?

How do you correctly reason that this directed graph is acyclic?

Does Eulerian cycle in digraph really need strongly connected component?

How many directed graphs of size n are there where each vertex is the tail of exactly one edge?

Generalized nontransitive dice

A constrained topological sort?

Frobenius normal form of a doubly stochastic matrix