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Underwater Acoustics — Parabolic Equation (RAM) L1-264
AcousticsPade-expansion split-step PEδ=5 · challengingL_DAG = 3.3📋 Stub — not mineable
📋
Unclaimed Principle — open for contribution
This Principle is declared in the catalog but has no reference solver, no pinned dataset, and is not registered on-chain. There is no reward pool. Submitting a cert against this Principle today will record the cert for reproducibility but pay zero PWM.
To claim it as a Bounty #7 contribution: open a PR adding (1) a reference solver, (2) ≥1 dataset pinned to IPFS, (3) updates to the L3 manifest with dataset CIDs. After verifier-agent triple-review, the founders' 3-of-5 multisig signs PWMRegistry.register() and the Principle becomes mineable.
Forward model E
dp/dr = i\cdot k_0 \cdot (\sqrt{1 + X) - 1) \cdot p, X = (1/k_0^2)(d^2/dz^2 + k^2(z,r) - k_0^2)Underwater Acoustics — Parabolic Equation (RAM) forward model.
L-DAG
L.split_step_pe -> L.marching.range -> L.absorb_bottom -> int.range
L.split_step_peL.marching.rangeL.absorb_bottomint.range
Well-posedness W
- Existence:
- true
- Uniqueness:
- true
- Stability:
- conditional
- κ:
- 440
Conditional stability; mismatch parameters dominate at Omega bounds.
Solvability C
- Solver class:
- RAM-standard, WA-PE, RAM-NN
- Convergence rate q:
- 1.5
- Complexity:
- O(N log N) per iteration
Specs (0)
No L2 specs registered yet for this principle.