Pith Number

pith:IFXBGBH7

pith:2024:IFXBGBH7G4TH2EFAKNIII4FZQ2

not attested not anchored not stored refs pending

Minimization of the Pseudospectral Abscissa of a Quadratic Matrix Polynomial

Emre Mengi, Volker Mehrmann

arxiv:2409.04297 v3 · 2024-09-06 · math.NA · cs.NA · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IFXBGBH7G4TH2EFAKNIII4FZQ2}

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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

Approximation of the Pseudospectral Abscissa via Eigenvalue Perturbation Theory

Receipt and verification

First computed	2026-07-05T12:02:35.616124Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

416e1304ff37267d10a053508470b986a8e5260484501243c4c95aa41660d0ff

Aliases

arxiv: 2409.04297 · arxiv_version: 2409.04297v3 · doi: 10.48550/arxiv.2409.04297 · pith_short_12: IFXBGBH7G4TH · pith_short_16: IFXBGBH7G4TH2EFA · pith_short_8: IFXBGBH7

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/IFXBGBH7G4TH2EFAKNIII4FZQ2 \
  | 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: 416e1304ff37267d10a053508470b986a8e5260484501243c4c95aa41660d0ff

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5e2915a395361fcf83db7011d68daa11457deb42023a2f98aae55f1d43063b79",
    "cross_cats_sorted": [
      "cs.NA",
      "math.OC"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2024-09-06T14:13:57Z",
    "title_canon_sha256": "c2d978b54734439eaa3a39f0b724fb6cafd972045f9405560967f39beda55a31"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2409.04297",
    "kind": "arxiv",
    "version": 3
  }
}