Penrose Substitution
symbolic-dynamics · 37 views
symbolic-dynamicssymbolic
What It Is
Robinson-triangle 1D inflation: substitution a→aba, b→ab. Substitution matrix [[2,1],[1,1]] has eigenvalue (3+√5)/2 = φ² ≈ 2.618 (golden squared). Canonical 1D cross-section through the rhombic Penrose tiling along the golden direction --- distinct from Fibonacci Word's φ-scale substitution; same golden family but at a different golden-power resonance.
Interpretation
Standard analysis sees: bounded / light-tailed; few distinct values; anti-correlated (alternating); anti-persistent; blue spectrum (high-frequency power); strongly periodic; homoskedastic; monofractal; stationary. The atlas additionally detects Penrose (Quasicrystal):long_range_order.
What standard analysis sees
tail heaviness0.06
asymmetry0.73
occupancy0.04
short-range corr0.05
long-range memory0.04
spectral colour0.99
periodicity0.94
complexity0.24
time-irreversibility0.51
volatility clustering0.02
multifractality0.01
dimensionality0.69
nonstationarity0.04
What the atlas adds
Penrose (Quasicrystal):long_range_order+7.8z
quasiperiodic long-range order (sharp φ-ratio ACF peak)
Atlas-extreme metrics the standard bank can’t predict for this source
Moiré:moire_phi_response | +6.9z | bank-miss 1.8σ |
Wavelet Cascade:scale_gini_dispersion | +4.1z | bank-miss 1.6σ |
Projective ℙ²:collinearity | -4.0z | bank-miss 1.0σ |
Septagonal (Danzer):cubic_coherence | -3.8z | bank-miss 1.2σ |
H3 Icosahedral:nn_enrichment | +3.8z | bank-miss 1.6σ |
H3 Icosahedral:temporal_coherence | +3.0z | bank-miss 2.0σ |
Projective ℙ²:distance_std | +3.0z | bank-miss 1.2σ |
Projective ℙ²:mean_distance | +3.0z | bank-miss 1.1σ |
Composition
dtypeuint8
range[0, 255]
unique values2 / 16384
mean ± std97.4 ± 124
Binary sequence — two distinct symbols.
Render Gallery
Native > phase_plotraw
Native > timeseriesraw
Native > triple_latticeraw
Boltzmann > lag_map
Boltzmann > spin_grid
Cayley > default
Chladni > free_plate_nodal
Chladni > plate_bottom
Chladni > plate_top
_(centered)/signed_log_z/Penrose_Substitution.png)
Heisenberg (Nil) (centered) > signed_log_z
_(centered)/xy_path/Penrose_Substitution.png)
Heisenberg (Nil) (centered) > xy_path
Hodge–Laplacian > default
/barcode/Penrose_Substitution.png)
Inflation (Substitution) > barcode
/d_curve/Penrose_Substitution.png)
Inflation (Substitution) > d_curve
Information Theory > default
Julia Set > escape_histogram
Klein Bottle > default
Laplacian > default
Logarithmic Spiral > default
Möbius-S³ > mobius_cylinder
Möbius-S³ > s2_base_map
Ordinal Partition > default
/phi_spectrum/Penrose_Substitution.png)
Penrose (Quasicrystal) > phi_spectrum
Persistent Homology > barcode
Persistent Homology > h1_diagram
Predictability > default
Recurrence Quantification > default
Spectral Analysis > default
Spectral Graph > default
Spirograph > mode_spectrum
Spirograph > phasor_trajectory
Symplectic > flux_grid
Symplectic > phase_space
/default/Penrose_Substitution.png)
Ulam Spiral (Sacks) > default
/default/Penrose_Substitution.png)
Ulam Spiral (Square) > default
Visibility Graph > default
Wavelet Cascade > default
Atlas Position
| Nearest neighbor | Distance | |
|---|---|---|
| Fibonacci Word | 2.23 | |
| Collatz Cycle Word | 2.64 | cross-origin |
| Periodic Word | 3.70 |
Which Geometries Light Up
AutoRegressive › AutoRegressive:ar_coef_1 | rank 302/306 | -1.0000 |
Boltzmann › Boltzmann:dominant_lag | rank 4/306 | 987.0000 |
Catch24 › Catch24:CO_HistogramAMI_even_2_5 | rank 306/306 | 0.0000 |
D4 Triality › D4 Triality:triplet_temporal | rank 305/306 | -0.8326 |
Moiré › Moiré:moire_phi_response | rank 2/306 | 0.3403 |
Multi-Scale Wasserstein › Multi-Scale Wasserstein:w_slope | rank 5/306 | 2.4607 |
Navier-Stokes › Navier-Stokes:ess_rescaling_gain | rank 1/306 | 0.9996 |
Penrose (Quasicrystal) › Penrose (Quasicrystal):phi_tower | rank 1/306 | 0.9785 |
Projective ℙ² › Projective ℙ²:mean_distance | rank 1/306 | 0.4113 |
Projective ℙ² › Projective ℙ²:distance_std | rank 4/306 | 0.2489 |
Projective ℙ² › Projective ℙ²:collinearity | rank 306/306 | 0.9289 |
Septagonal (Danzer) › Septagonal (Danzer):cubic_coherence | rank 303/306 | -0.2246 |
Septagonal (Danzer) › Septagonal (Danzer):z_primary | rank 303/306 | -0.4744 |
Wavelet Cascade › Wavelet Cascade:scale_gini_dispersion | rank 3/306 | 0.3021 |
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