Pith Number

pith:I57FWHOQ

pith:2024:I57FWHOQP4BUEZS6J4XJES2RDK

not attested not anchored not stored refs pending

Coarse spaces for non-symmetric two-level preconditioners based on local extended generalized eigenproblems

Emile Parolin, Fr\'ed\'eric Nataf

arxiv:2404.02758 v3 · 2024-04-03 · math.NA · cs.NA

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{I57FWHOQP4BUEZS6J4XJES2RDK}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Cited by

1 paper in Pith

Achieving wavenumber robustness in domain decomposition for heterogeneous Helmholtz equation: an overview of spectral coarse spaces

Receipt and verification

First computed	2026-07-05T11:31:38.415548Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

477e5b1dd07f0342665e4f2e924b511aa9e899999129e3dd1a4b98ebb3565eaf

Aliases

arxiv: 2404.02758 · arxiv_version: 2404.02758v3 · doi: 10.48550/arxiv.2404.02758 · pith_short_12: I57FWHOQP4BU · pith_short_16: I57FWHOQP4BUEZS6 · pith_short_8: I57FWHOQ

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/I57FWHOQP4BUEZS6J4XJES2RDK \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 477e5b1dd07f0342665e4f2e924b511aa9e899999129e3dd1a4b98ebb3565eaf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9889bf44122896a149ed3c65dc31a78c92db0fe78e27e41560c54f17f544bab6",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2024-04-03T14:03:39Z",
    "title_canon_sha256": "b6c81d5dfc1992498096c4c5488ea75f950e34bd84fd1d71a4321baeb7cc6366"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2404.02758",
    "kind": "arxiv",
    "version": 3
  }
}