Pith Number

pith:PVZ6U66H

pith:2024:PVZ6U66HCCZDLWHEVRDETJYE2P

not attested not anchored not stored refs pending

Polynomial Preconditioning for the Action of the Matrix Square Root and Inverse Square Root

Andreas Frommer, Gustavo Ramirez-Hidalgo, Manuel Tsolakis, Marcel Schweitzer

arxiv:2401.06684 v1 · 2024-01-12 · math.NA · cs.NA

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Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PVZ6U66HCCZDLWHEVRDETJYE2P}

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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

Component-wise accurate computation of the square root of an M-matrix

Receipt and verification

First computed	2026-07-05T07:33:04.098958Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7d73ea7bc710b235d8e4ac4649a704d3eda0f6337b75188fa6ef0922352380be

Aliases

arxiv: 2401.06684 · arxiv_version: 2401.06684v1 · doi: 10.48550/arxiv.2401.06684 · pith_short_12: PVZ6U66HCCZD · pith_short_16: PVZ6U66HCCZDLWHE · pith_short_8: PVZ6U66H

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/PVZ6U66HCCZDLWHEVRDETJYE2P \
  | 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: 7d73ea7bc710b235d8e4ac4649a704d3eda0f6337b75188fa6ef0922352380be

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c8da19eeb74fd901e87ad6e302f34cfe16a7bd5926e01624ff3327c393a70b22",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2024-01-12T16:46:37Z",
    "title_canon_sha256": "162750bf83d7b13e070541aeb2a0b52c99de90ab63e18dbeaa47294044854f2e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2401.06684",
    "kind": "arxiv",
    "version": 1
  }
}