← All principles
Underwater Normal Modes — modal propagation (KRAKEN) L1-263
AcousticsShallow-water modal expansionδ=5 · challengingL_DAG = 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
p(r,z) = \sum_m Psi_m(z_s) Psi_m(z) \cdot H_0(k_rm r) / \sqrt{r); (d^2/dz^2 + k^2(z) - k_rm^2) Psi_m = 0Underwater Normal Modes — modal propagation (KRAKEN) forward model.
L-DAG
L.eigenvalue_solve -> L.mode_sum -> L.range_propagate -> int.frequency
L.eigenvalue_solveL.mode_sumL.range_propagateint.frequency
Well-posedness W
- Existence:
- true
- Uniqueness:
- true
- Stability:
- conditional
- κ:
- 400
Conditional stability; mismatch parameters dominate at Omega bounds.
Solvability C
- Solver class:
- KRAKEN, ORCA, PE-modal
- Convergence rate q:
- 2
- Complexity:
- O(N log N) per iteration
Specs (0)
No L2 specs registered yet for this principle.