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Paper Citation Record · LEDGER

Geometric results for hyperbolic operators with spectral transition of the Hamilton map

As of 7 August 2026, this Paper Citation Record lists 15 of 15 outbound references and 2 inbound Pith citation observations for arXiv:2505.21078.

A citation records a reference. It does not transfer a finding from one paper to another.

pith.paper-citation-record.v1
2505.21078 v1

Coverage vector

measured 15 of 15 reference resolution

Typed states for the displayed outbound observations.

Source: paper_references, paper_reference_links, observed 2026-08-07T13:50:28.699767Z

measured 17 of 17 standing notices

One-hop event checks from named stored sources.

Source: scholarly_work_events, retraction_status_cache, observed 2026-08-07T06:34:17.273281+00:00

measured 2 of 2 inbound itemization

Pith citing papers itemized under the disclosed page cap.

Source: paper_references, paper_reference_links, observed 2026-08-07T05:24:37.990288Z

measured 0 of 1 external citation measurements

A source-named dated measurement, never combined with another source.

Source: arxiv_reference, observed 2026-06-29T17:53:47.606321Z

Reference resolution

15 of 15 outbound references displayed

  • verified exact0
  • verified fuzzy12
  • unresolved3
  • parse uncertain0
  • malformed identifier0
  • metadata mismatch0

External citation measurements

No source-named external measurement is stored.

Outbound references

Observation f2bbb6a3-3380-41a9-aef1-c541b823b1b5 · outbound

This paper cites Geometric transition for a class of hyper- bolic operators with double characteristics.

Geometric results for hyperbolic operators with spectral transition of the Hamilton map Geometric transition for a class of hyper- bolic operators with double characteristics

Reference 1

Resolution
verified fuzzy
raw_fallback, observed 2026-08-07T13:50:30.813634Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-07T06:34:17.273281+00:00.

source=pdf_text observed=2026-08-07T13:50:27.662214Z digest=sha256:b2248b2f7ef68f49831f91c299ce303d399555f0c4361d61a05bcf6ad36193b4

Observation 37f543cf-22b9-4dfd-9762-8152d3a76e74 · outbound

This paper cites On the Cauchy problem for non- effectively hyperbolic operators, the Gevrey 5 well-posedness.

Geometric results for hyperbolic operators with spectral transition of the Hamilton map On the Cauchy problem for non- effectively hyperbolic operators, the Gevrey 5 well-posedness

Reference 2

Resolution
verified fuzzy
raw_fallback, observed 2026-08-07T13:50:30.636032Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-07T06:34:17.273281+00:00.

source=pdf_text observed=2026-08-07T13:50:27.724810Z digest=sha256:da2bea0a8ff6a31462e72a54540bf4f9fbdd377469c357496314e1f1a5a5639f

Observation 03f4e05e-db35-4081-b529-74e94e2d4cba · outbound

This paper cites The Cauchy prob- lem for hyperbolic operators with double characteristics in presence of tran- sition.

Geometric results for hyperbolic operators with spectral transition of the Hamilton map The Cauchy prob- lem for hyperbolic operators with double characteristics in presence of tran- sition

Reference 3

Resolution
verified fuzzy
raw_fallback, observed 2026-08-07T13:50:30.452810Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-07T06:34:17.273281+00:00.

source=pdf_text observed=2026-08-07T13:50:27.803527Z digest=sha256:bdea02fb2b40d595c8460bf64ba557ca774a6dfd0795c6d5e4cf38adde3eef04

Observation 4f14ae66-6abd-46d9-9535-86cc296b55e0 · outbound

This paper cites On the well posedness of the Cauchy problem for a class of hyperbolic operators with double characteristics.

Geometric results for hyperbolic operators with spectral transition of the Hamilton map On the well posedness of the Cauchy problem for a class of hyperbolic operators with double characteristics

Reference 4

Resolution
verified fuzzy
raw_fallback, observed 2026-08-07T13:50:30.368963Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-07T06:34:17.273281+00:00.

source=pdf_text observed=2026-08-07T13:50:27.890057Z digest=sha256:d96e3b4dfae86dced8fe5e37dea159002d9177fb58f55cc37779ff2a94c9b3a2

Observation 80b0a9dc-ef18-4f01-87d0-e8351b145a18 · outbound

This paper cites The Cauchy problem for differential equations with double characteristics.

Geometric results for hyperbolic operators with spectral transition of the Hamilton map The Cauchy problem for differential equations with double characteristics

Reference 5

Resolution
verified fuzzy
raw_fallback, observed 2026-08-07T13:50:30.279390Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-07T06:34:17.273281+00:00.

source=pdf_text observed=2026-08-07T13:50:27.972175Z digest=sha256:235d68ae4e62f00fd8cc0d00cfe38fc931cc213a7d47bd41a04d6eb90ab8ffa3

Observation 3248d9b3-e789-4006-9640-087a488e287d · outbound

This paper cites III , vol- ume 274 of Grundlehren der mathematischen Wissenschaften [Fundamental Principles of Mathematical Sciences].

Geometric results for hyperbolic operators with spectral transition of the Hamilton map III , vol- ume 274 of Grundlehren der mathematischen Wissenschaften [Fundamental Principles of Mathematical Sciences]

Reference 6

Resolution
verified fuzzy
raw_fallback, observed 2026-08-07T13:50:30.185319Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-07T06:34:17.273281+00:00.

source=pdf_text observed=2026-08-07T13:50:28.073887Z digest=sha256:239794b5b79b576cde383e281fc6eced2b659378b3a092ed90fab63552a30a2c

Observation 54a8b5a2-6b6d-4d45-a6b8-ebaba2f3ae8d · outbound

This paper cites an unresolved cited work.

Geometric results for hyperbolic operators with spectral transition of the Hamilton map Unresolved cited work

Reference 7

Resolution
unresolved
raw_fallback, observed 2026-08-07T13:50:29.900171Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-07T06:34:17.273281+00:00.

source=pdf_text observed=2026-08-07T13:50:28.151897Z digest=sha256:505e521cb87769686ed2ac9d27c3c1f78d51b9b5320c580a376157217ce3243a

Observation 7a4b9f5b-a236-4447-9558-a5b917e7a2c2 · outbound

This paper cites an unresolved cited work.

Geometric results for hyperbolic operators with spectral transition of the Hamilton map Unresolved cited work

Reference 8

Resolution
unresolved
raw_fallback, observed 2026-08-07T13:50:29.681646Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-07T06:34:17.273281+00:00.

source=pdf_text observed=2026-08-07T13:50:28.232599Z digest=sha256:9df1d25da7e37ee8c3bd38d2caf5d5d60b3738d4bf892725a63a6e435369f21e

Observation 0f943b45-e99e-439f-9ea0-bf3ec2d05bc7 · outbound

This paper cites The hyperbolic Cauchy problem , volume 1505 of Lecture Notes in Mathematics.

Geometric results for hyperbolic operators with spectral transition of the Hamilton map The hyperbolic Cauchy problem , volume 1505 of Lecture Notes in Mathematics

Reference 9

Resolution
verified fuzzy
raw_fallback, observed 2026-08-07T13:50:29.526252Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-07T06:34:17.273281+00:00.

source=pdf_text observed=2026-08-07T13:50:28.317488Z digest=sha256:31e75cccce9866e160648b43231333dad7499ef3b0584a6089917622dddb6a68

Observation 7e210d3b-ffd4-4f59-bc52-db1da955dc30 · outbound

This paper cites On the Cauchy problem for noneffectively hyperbolic oper- ators, a transition case.

Geometric results for hyperbolic operators with spectral transition of the Hamilton map On the Cauchy problem for noneffectively hyperbolic oper- ators, a transition case

Reference 10

Resolution
verified fuzzy
raw_fallback, observed 2026-08-07T13:50:29.424221Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-07T06:34:17.273281+00:00.

source=pdf_text observed=2026-08-07T13:50:28.384007Z digest=sha256:7e5cab279967745fdfc6ad6398a10e139bd7fc7fc7940a4d0a0d04fa807b729e

Observation f5f1f00a-c65d-4ddf-a071-91e6c105c2ff · outbound

This paper cites On the Cauchy problem for hyperbolic operators with dou- ble characteristics, a transition case.

Geometric results for hyperbolic operators with spectral transition of the Hamilton map On the Cauchy problem for hyperbolic operators with dou- ble characteristics, a transition case

Reference 11

Resolution
verified fuzzy
raw_fallback, observed 2026-08-07T13:50:29.340398Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-07T06:34:17.273281+00:00.

source=pdf_text observed=2026-08-07T13:50:28.450252Z digest=sha256:282cf3c423ae32b74f45041c400302ebfeba6fbab6303d6d2428701d1ff8a659

Observation 05aec62a-da10-4d73-882a-15363b4706ef · outbound

This paper cites Cauchy problem for differential operators with double char- acteristics, volume 2202 of Lecture Notes in Mathematics.

Geometric results for hyperbolic operators with spectral transition of the Hamilton map Cauchy problem for differential operators with double char- acteristics, volume 2202 of Lecture Notes in Mathematics

Reference 12

Resolution
verified fuzzy
raw_fallback, observed 2026-08-07T13:50:29.215824Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-07T06:34:17.273281+00:00.

source=pdf_text observed=2026-08-07T13:50:28.505492Z digest=sha256:74eb932730b620897246bf3b9d4238f401eb0553fdae194e44fa5f8a1543577a

Observation f1c31b39-5f0f-4dcb-ae26-f58d35f4f120 · outbound

This paper cites On the Cauchy problem for differential operators with dou- ble characteristics, a transition from non-effective to effective characteristics.

Geometric results for hyperbolic operators with spectral transition of the Hamilton map On the Cauchy problem for differential operators with dou- ble characteristics, a transition from non-effective to effective characteristics

Reference 13

Resolution
verified fuzzy
raw_fallback, observed 2026-08-07T13:50:28.974119Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-07T06:34:17.273281+00:00.

source=pdf_text observed=2026-08-07T13:50:28.638422Z digest=sha256:3fe87092cea618ac9a1755c2eddf27ae44750aa7fa8ec827ce41136684cce284

Observation d6d010ed-e8fd-4a40-a201-30a6098a9ea2 · outbound

This paper cites A more direct way to the Cauchy problem for effectively hyperbolic operators.

Geometric results for hyperbolic operators with spectral transition of the Hamilton map A more direct way to the Cauchy problem for effectively hyperbolic operators

Reference 14

Resolution
verified fuzzy
raw_fallback, observed 2026-08-07T13:50:28.870695Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-07T06:34:17.273281+00:00.

source=pdf_text observed=2026-08-07T13:50:28.699767Z digest=sha256:7b812da0395ef427b3b6fffa80be730c56587da6347c78dd4f0c135cd4723fed

Observation cafb92a9-5884-41e2-8f4a-23fbd104eb5d · outbound

This paper cites an unresolved cited work.

Geometric results for hyperbolic operators with spectral transition of the Hamilton map Unresolved cited work

Reference 2017

Resolution
unresolved
raw_fallback, observed 2026-08-07T13:50:29.111553Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-07T06:34:17.273281+00:00.

source=pdf_text observed=2026-08-07T13:50:28.575803Z digest=sha256:e229ef6ae3bb35a0910e6b32d36bf77dc273e49f65a47649e1e94de7b2898236

Pith citing papers

Observation ea2e2f2c-61dd-4169-ab68-b7f659792824 · inbound

Notes on tangent bicharacteristics and ill-posedness of the Cauchy problem cites this paper.

Notes on tangent bicharacteristics and ill-posedness of the Cauchy problem Geometric results for hyperbolic operators with spectral transition of the Hamilton map

Reference 2

Resolution
unresolved
no resolver link, observed 2026-08-07T05:24:37.990288Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

source=pdf_text observed=2026-08-07T05:24:37.990288Z digest=sha256:bcb1c26abc318bfdb6d0364d661d632115cc3970b6e0f36d2a8f0f019efdc99f

Observation 07afd185-e398-4f71-aff1-3f0dedc1eb19 · inbound

Lack of Gevrey solvability for a model operator cites this paper.

Lack of Gevrey solvability for a model operator Geometric results for hyperbolic operators with spectral transition of the Hamilton map

Reference 2

Resolution
verified exact
arxiv_id, observed 2026-06-29T17:53:47.607849Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-07T06:34:17.273281+00:00.

source=pdf_text observed=2026-06-29T17:44:55.504387Z digest=sha256:a28bf5b956e87d635c82dd2edd7c35fe018077f6a168a074198d6a5f0278eb1f