Sentence examples for negative curvature from inspiring English sources

"Negative curvature unites these scores".

Negative curvature...saddle-shaped?

Finally, the universe might be "open," or have negative curvature.

Finally, the Universe might be "open" or have negative curvature.

Friedmann also introduced cosmological models with negative curvature.

Beltrami's account of the surface of constant negative curvature was ingenious.

In the mid-19th century it was shown that hyperbolic surfaces must have constant negative curvature.

Regions with negative curvature, such as adaptive peaks, experience dissipation.

In 1868 the Italian mathematician Eugenio Beltrami described a surface, called the pseudosphere, that has constant negative curvature.

The pseudosphereThe pseudosphere has constant negative curvature; i.e., it maintains a constant concavity over its entire surface.

My high school Astronomy students and I are having a hard time conceptualizing a negative curvature universe.