Fischer-Koch Y
Fischer-Koch Y is a triply periodic minimal surface, defined as a nodal algebraic surface, immersed, with I4132 symmetry (a crystallographic space group).
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def-nodal has-approximation immersed implemented minimal minimal-periodic tradition-crystallographic triply-periodic
Formula
Properties
- Family
- minimal-periodic
- Given by
- a nodal algebraic surface
- Curvature
- zero mean curvature
- Periodicity
- triply periodic
- Ends
- 0
- Embedding
- immersed
- Orientable
- yes
- Symmetry
- I4132
- Symmetry kind
- crystallographic space group
- Fidelity
- approximation
Definition
Standard nodal approximation as shipped in math_art/minsurf/tpms.py. No exact definition is stored for this surface, so this approximation is all the record has; `approximates` is null rather than pointing at itself.
Sources
Derived from the Math Art generator registries and cross-referenced to the literature; not transcribed from any gallery's compilation.
- W. Fischer and E. Koch, "On 3-periodic minimal surfaces", Z. Kristallogr. 179 (1987) 31-52, and E. Koch, W. Fischer, "On 3-periodic minimal surfaces with non-cubic symmetry",
- E. Koch and W. Fischer, "Triply periodic minimal balance surfaces: a correction", Acta Crystallogr. A 49 (1993) 209-210. doi:10.1107/S0108767392007591 [C(S) = P and Y = D as minimal surfaces; the nodal geometries remain distinct]
- H. G. von Schnering and R. Nesper, "Nodal surfaces of Fourier series: fundamental invariants of structured matter",
- Z. Phys. B Condensed Matter 83 (1991) 407-412. doi:10.1007/BF01313411 [C(D), C(Y), +-Y, C(+-Y), S nodal forms]
- H. G. von Schnering, M. Oehme, G. Rudolf, "Three-dimensional periodic nodal surfaces which envelope the threefold and fourfold cubic rod packings", Acta Chem. Scand. 45 (1991) 873-876. doi:10.3891/acta.chem.scand.45-0873 [C(I2-Y**)]
- M. Wohlgemuth, N. Yufa, J. Hoffman, E. L. Thomas, "Triply periodic bicontinuous cubic microdomain morphologies by symmetries", Macromolecules 34 (2001) 6083-6089. doi:10.1021/ma0019499 [O,C-TO (OCTO), G', F-RD variant]