Derivation of some basic properties of conformal transformations
94543
Topological/Geometrical justification for $\text{CFT}_2$ being special
22279
Local and Global Symmetries
106050
Finding a conformal map from the intersection of two disks to the unit disk.
61038
Understanding the Details of the Construction of the Tensor Product
21127
Interval preserving transformations are linear in special relativity
149319
Möbius transformations and concentric circles
104171
Geometric derivation of wave equation
64463
Proof that angle-preserving map is conformal
112362
fixed point problem for orthogonal transformation
114172
Derivation of Hamilton-Jacobi theory using canonical transformations
50278
Explicit formula for conformal map from ellipse to unit disc (interior to interior)
103778
Geometric interpretation of connection forms, torsion forms, curvature forms, etc
46358
geometric interpretation of $\vec v \cdot \operatorname{curl} \vec v = 0 $
105660
Invariance of action $\Rightarrow$ covariance of field equations?
10953
Elementary argument for conservation laws from symmetries *without* using the Lagrangian formalism
157946
Elementary derivation of certian identites related to the Riemannian Zeta function and the Euler-Mascheroni Constant
28485
Commutativity of projection and rotation