Where does the logmap and proj_tan(x, u, c) function in "hyperboloid" come from?

HazyResearch / hgcn

Hyperbolic Graph Convolutional Networks in PyTorch.

603 stars 109 forks source link

Where does the logmap and proj_tan(x, u, c) function in "hyperboloid" come from? #44

Closed hzg0601 closed 1 year ago

hzg0601 commented 2 years ago

would you please list some references that give the detail about where the logmap and expmap come from. Some papers give these formulas very differently, which makes me curious about whether these formulas have reached consensus in geometry?