Pith Number

pith:BUWEMYFT

pith:2026:BUWEMYFTU4DVLVSAEJIMM3HGRU

not attested not anchored not stored refs pending

Integrable Deformations of the Breitenlohner-Maison Model from 4d Chern-Simons Theory

Matthias Blau, Meer Ashwinkumar

Deformations of the 2d Breitenlohner-Maison sigma model arise from changes to boundary conditions and the action in a 4d Chern-Simons setup.

arxiv:2604.26452 v2 · 2026-04-29 · hep-th · gr-qc · math-ph · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BUWEMYFTU4DVLVSAEJIMM3HGRU}

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.

Claims

C1strongest claim

We derive integrable deformations of the 2d Breitenlohner-Maison (BM) sigma model that describes the stationary, axisymmetric sector of 4d general relativity, as well as higher-rank generalisations thereof, using the framework of 4d Chern-Simons theory. In particular, we consider deformations of the boundary conditions and action of the 4d Cole-Weck model, which lead to deformations of the BM model associated with solutions to the homogeneous and inhomogeneous classical Yang-Baxter equations respectively.

C2weakest assumption

That deformations of the boundary conditions and action in the 4d Cole-Weck model within 4d Chern-Simons theory produce integrable deformations of the 2d Breitenlohner-Maison sigma model, relying on the established correspondence between the 4d CS framework and the BM model.

C3one line summary

Integrable deformations of the Breitenlohner-Maison sigma model are obtained from 4d Chern-Simons theory, corresponding to solutions of the homogeneous and inhomogeneous classical Yang-Baxter equations.

Cited by

3 papers in Pith

The auxiliary-deformed Breitenlohner-Maison model: duality frames and higher-dimensional origin

The classical Yangian symmetry of Auxiliary Field Sigma Models

Receipt and verification

First computed	2026-06-05T01:15:24.931370Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0d2c4660b3a70755d6402250c66ce68d3de73dfad0b5fd157b2c9363bce29ab2

Aliases

arxiv: 2604.26452 · arxiv_version: 2604.26452v2 · doi: 10.48550/arxiv.2604.26452 · pith_short_12: BUWEMYFTU4DV · pith_short_16: BUWEMYFTU4DVLVSA · pith_short_8: BUWEMYFT

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/BUWEMYFTU4DVLVSAEJIMM3HGRU \
  | 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: 0d2c4660b3a70755d6402250c66ce68d3de73dfad0b5fd157b2c9363bce29ab2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f8552df30c9b95f905e322bd9c6c95aa218257a369fa2445c4aabe7e438cf359",
    "cross_cats_sorted": [
      "gr-qc",
      "math-ph",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2026-04-29T09:10:34Z",
    "title_canon_sha256": "24abee7a2ea7e4dba1bedb15a5766bf0789698d078e47f1e66782f23ccf392fd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2604.26452",
    "kind": "arxiv",
    "version": 2
  }
}