Zariski tangent space and $K[\epsilon]/(\epsilon^2)$
39487
Zariski Tangent Space and $k[\varepsilon]/\varepsilon^2$
154837
mapping properties of $(1−z)^i$
51790
Krull Dimension of a scheme
61255
Tangent bundle : is a manifold
24222
Sum of the squares of the reciprocals of the fixed points of the tangent function
21198
Proving that the general linear group is a differentiable manifold
143269
Existence of area-preserving diffeomorphism between two sets in $\mathbb{R}^2$
132311
T$\mathbb{S}^{n} \times \mathbb{R}$ is diffeomorphic to $\mathbb{S}^{n}\times \mathbb{R}^{n+1}$
37092
Homeomorphism between a cone in a compact space and this compactification
82464
$U^*\otimes V$ versus $L(U,V)$ for infinite dimensional spaces
127000
When does $V = \ker(f) \oplus \operatorname{im}(f)$?
124042
Why is a vector space equal to its tangent space for any point?
45276
Continuous map on $S^2$
131890
Totally disconnected space that is not $T_2$
151581
Prerequisite for Milnor Topology from a Differential Viewpoint
112271
Definition of the hessian as a bilinear functional on the tangent space
30178
Homeomorphism $(\mathbb{CP}^1)^m/S_m \overset{\sim}{\to} \mathbb{CP}^m$?