Intermittency Type-II

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iterated-mapsintermittent

What It Is

Type-II intermittency near a subcritical Neimark-Sacker (Hopf) bifurcation. The laminar phase is a slow spiral: a rotation whose amplitude grows smoothly until it leaves the channel, bursts, and is reinjected near zero. Distinct from Pomeau-Manneville type-I (tangent bifurcation) and type-III (period-doubling); laminar length scales as epsilon^-1

Interpretation

Standard analysis sees: heavy-tailed. The atlas finds no named structure, but the source is distinctively extreme on SL(2,ℝ) (Thurston):parabolic_fraction (+6.4z) — beyond what the standard bank predicts for it. It sits beside Bearing Inner in the atlas (standard-bank rank 54) — a neighbor conventional features miss.

What standard analysis sees
tail heaviness0.96
asymmetry0.18
occupancy0.23
short-range corr0.49
long-range memory0.29
spectral colour0.57
periodicity0.66
complexity0.40
time-irreversibility0.74
volatility clustering0.50
multifractality0.67
dimensionality0.44
nonstationarity0.55
What the atlas adds
Atlas-extreme metrics the standard bank can’t predict for this source
SL(2,ℝ) (Thurston):parabolic_fraction+6.4zbank-miss 2.3σ
Boltzmann:dominant_lag+3.9zbank-miss 1.8σ
Fisher Information:geodesic_velocity+3.1zbank-miss 3.3σ
Fractal (Mandelbrot):interior_fraction+2.4zbank-miss 1.7σ
Hyperbolic (Poincaré):spatio_temporal_corr+2.1zbank-miss 2.3σ

Composition

dtypefloat64
range[-1.846, 2.012]
unique values16384 / 16384
mean ± std-0.000407 ± 0.184

Render Gallery

Atlas Position

Nearest neighborDistance
IMS Bearing Failed4.00cross-origin
Bearing Inner4.16cross-origin
MFPT Inner Unloaded4.21cross-origin

Open in Atlas →

Which Geometries Light Up

BoltzmannBoltzmann:nn_dominancerank 303/3070.0272
Fisher InformationFisher Information:geodesic_velocityrank 5/3071.6192
Hyperbolic (Poincaré)Hyperbolic (Poincaré):spatio_temporal_corrrank 4/3070.8309
Hyperbolic (Poincaré)Hyperbolic (Poincaré):mean_hyperbolic_radiusrank 303/3070.1525
Ordinal PartitionOrdinal Partition:memory_orderrank 3/3070.9013
PredictabilityPredictability:transition_entropy_variancerank 3/3070.0685
SL(2,ℝ) (Thurston)SL(2,ℝ) (Thurston):parabolic_fractionrank 3/3070.7010
SL(2,ℝ) (Thurston)SL(2,ℝ) (Thurston):hyperbolic_fractionrank 303/3070.0107
SL(2,ℝ) (Thurston)SL(2,ℝ) (Thurston):mean_spectral_radiusrank 305/3071.0172
Zipf–Mandelbrot (8-bit)Zipf–Mandelbrot (8-bit):zipf_r_squaredrank 4/3070.9945
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