Joukowski surjective
125814
The function $f(z)=z+\frac{1}{z}$ maps $\Omega$ biholomorphically on the upper plane
20199
Find a surjective function $f:\mathbb{N}\to \mathbb{Q}$
13193
Does a inverse function need to be either surjective or injective?
152057
Let $(X,d)$ be a compact metric space. Let $f: X \to X$ be such that $d(f(x),f(y)) = d(x,y)$ for all $x,y \in X$. Show that $f $ is onto (surjective).
62551
Separability by surjectivity of Frobenius Endomorphism
45792
Rigorous proof that surjectivity implies injectivity for finite sets
61
Calculating the total number of surjective functions
28798
Proving injection and surjection with functions $F:C^B\to C^A$, $F(f)=f\circ\varphi$, $\varphi: A\to B$
126472
Surjective endomorphisms of uniserial modules
129162
Show there is a surjective homomorphism from $\mathbb{Z}\ast\mathbb{Z}$ onto $C_2\ast C_3$
88857
Prove that Gauss map on M is surjective
148500
Understanding this theorem and how to go about proving it surjectivity?
104757
If $f \circ g$ is surjective, then f is surjective
117793
Finding a function $\mathbb{N} \to \mathbb{N}$ that is surjective but not injective.
52348
Counting the number of surjections.
146306
A continuous surjective function from $(0,1]$ onto $[0,1]$
41359
Constructing a bijection