Existence of right inverse surjective continuous linear operator on Banach spaces
80618
Surjective bounded operator in Banach spaces without bounded right-inverse
110885
Does there exists a continuous surjection from $\mathbb{R}$ to $\mathbb{R}^2$?
5644
Is a right inverse of a surjective linear map linear?
101319
Properties of a continuous map $f : \mathbb{R}^2\rightarrow \mathbb{R}$ with only finitely many zeroes
93102
prove that $f:X\rightarrow Y$ is surjective if and only if $f(f^{-1}(C))=C$
52791
Invertibility of an operator $T$ if $\|I-T\|<1$
139272
On the norm of a quotient of a Banach space.
57609
Hahn-Banach proof by extension of basis
65033
Prove inverse of strictly monotone increasing function is continuous over the range of original function
140813
How do i prove that continuous linear transformation between normed spaces is bounded?
87655
Consequence of the Hahn-Banach Theorem
28731
Banach space in functional analysis
15839
equivalent norms in Banach spaces of infinite dimension
78344
Nonconstant linear functional on a topological vector space is an open mapping
22061
$|f(x)-f(y)|\geq k|x-y|$.Then $f$ is bijective and its inverse is continuous.
79285
Does there exist a continuous surjection from $\Bbb R^3-S^2$ to $\Bbb R^2-\{(0,0)\}$?
144656
Linear functional and a bounded norm