Show that the plane $\{su+tv\mid s,t \in\Bbb R\}$ through the origin in $\Bbb R^3$ is equal to the null space of some element of $(\Bbb R^3)^{*}$.
59804
Show that the plane $\{su+tv|s,t \in\Bbb R\}$ in $\Bbb R^3$ is equal to the null space of some element of $(\Bbb R^3)^{*}$.
98303
Ward identity derived from global symmetry and SDE, different from that derived from gauge symmetry?
105014
Is the zero vector in $\mathbb{R}^n$ by itself a subspace of $\mathbb{R}^n$?
60981
Understanding relation between Quotient Space and $S^1$
44069
Proof that a continuous map to $S^n$ whose image is a proper subset of $S^n$ is null-homotopic
90525
The subspace of $\ell_2$
28416
Show that $\partial_\nu T^{\mu\nu} = - j_\nu F^{\mu\nu}$
79861
Induced metric on a null hypersurface
59192
Basis of cotangent space
46358
geometric interpretation of $\vec v \cdot \operatorname{curl} \vec v = 0 $
32458
Does the rank-nullity theorem hold for infinite dimensional $V$?
129549
Showing that the orthogonal projection in a Hilbert space is compact iff the subspace is finite dimensional
143100
Identify the plane defined by $|z-2i| = 2|z+3|$
91022
How do I prove that a subspace of a vector space $X$ is the null space of some linear functional on $X$?
33188
Dimension of null space of a given problem
81999
What is this quotient space?
84686
Geometric Description Of a Set In The Complex Plane