## Triply periodic surfaces |
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## Triply periodic minimal surfaces are invariant under three independent translations. One best visualizes them in terms of a fundamental piece copies of which are stacked together to produce the whole thing. |
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## At the end of the 19th century, H.A. Schwarz and his students found a few examples, and later so many more were discovered that we don't even have a satisfactory description of what is known to exist. |