Typed states for the displayed outbound observations.
Source: paper_references, paper_reference_links, observed 2026-08-14T15:12:07.080731Z
Paper Citation Record · LEDGER
The essential spectrum of canonical systems
As of 16 August 2026, this Paper Citation Record lists 9 of 9 outbound references and 0 inbound Pith citation observations for arXiv:1908.02266.
A citation records a reference. It does not transfer a finding from one paper to another.
Coverage vector
One-hop event checks from named stored sources.
Source: scholarly_work_events, retraction_status_cache, observed 2026-08-16T06:30:59.297886+00:00
Pith citing papers itemized under the disclosed page cap.
Source: paper_references, paper_reference_links
A source-named dated measurement, never combined with another source.
Source: cited_works
Reference resolution
9 of 9 outbound references displayed
- verified exact1
- verified fuzzy8
- unresolved0
- parse uncertain0
- malformed identifier0
- metadata mismatch0
External citation measurements
No source-named external measurement is stored.
Outbound references
Observation 2955eba3-4899-45f1-afc9-14ba84846e5c · outbound
This paper cites Hartman, Ordinary Differential Equations, Classics in Applied Ma themat- ics 38, SIAM, Philadelphia, 2002.
The essential spectrum of canonical systems Hartman, Ordinary Differential Equations, Classics in Applied Ma themat- ics 38, SIAM, Philadelphia, 2002
Reference 1
- Resolution
- verified fuzzy
- raw_fallback, observed 2026-08-14T15:12:07.397356Z
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.
Observation f534a533-ae34-48f3-9aea-75d975934b96 · outbound
This paper cites Kac, A criterion for the discreteness of a singular canonical system, Funct.
The essential spectrum of canonical systems Kac, A criterion for the discreteness of a singular canonical system, Funct
Reference 2
- Resolution
- verified fuzzy
- raw_fallback, observed 2026-08-14T15:12:07.372154Z
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.
Observation ea9eb740-901f-4321-a15f-ae76bfc060e8 · outbound
This paper cites Kac and M.G.
The essential spectrum of canonical systems Kac and M.G
Reference 3
- Resolution
- verified fuzzy
- raw_fallback, observed 2026-08-14T15:12:07.344776Z
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.
Observation 2b10b84d-ad28-43c6-af9a-2ed9464316a7 · outbound
This paper cites Remling, Spectral Theory of Canonical Systems, de Gruyter Studies in Mathematics 70, Berlin/Boston, 2018.
The essential spectrum of canonical systems Remling, Spectral Theory of Canonical Systems, de Gruyter Studies in Mathematics 70, Berlin/Boston, 2018
Reference 4
- Resolution
- verified fuzzy
- raw_fallback, observed 2026-08-14T15:12:07.314966Z
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.
Observation 0a934271-ca98-49c5-a028-a3766f754037 · outbound
This paper cites Remling and K.
The essential spectrum of canonical systems Remling and K
Reference 5
- Resolution
- verified fuzzy
- raw_fallback, observed 2026-08-14T15:12:07.277470Z
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.
Observation a0309b45-f1f4-4bdb-b4e2-ec86b10b424c · outbound
This paper cites Canonical systems with discrete spectrum.
The essential spectrum of canonical systems Canonical systems with discrete spectrum
Reference 6
- Resolution
- verified exact
- local_arxiv, observed 2026-08-14T15:12:07.146170Z
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.
Observation a7845677-dd9a-4631-b5f0-4d20bb195c95 · outbound
This paper cites Weidmann, Spectral Theory of Ordinary Differential Operato rs, Springer Lecture Notes 1258, Springer, Berlin, 1987.
The essential spectrum of canonical systems Weidmann, Spectral Theory of Ordinary Differential Operato rs, Springer Lecture Notes 1258, Springer, Berlin, 1987
Reference 7
- Resolution
- verified fuzzy
- raw_fallback, observed 2026-08-14T15:12:07.248915Z
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.
Observation f853bb02-c9f6-4543-bd41-4c56515b9dce · outbound
This paper cites Winkler, Canonical systems with a semibounded spectrum, Op.
The essential spectrum of canonical systems Winkler, Canonical systems with a semibounded spectrum, Op
Reference 8
- Resolution
- verified fuzzy
- raw_fallback, observed 2026-08-14T15:12:07.217576Z
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.
Observation d70a95de-9a95-4926-aee7-6f10a63a1a19 · outbound
This paper cites Winkler and H.
The essential spectrum of canonical systems Winkler and H
Reference 9
- Resolution
- verified fuzzy
- raw_fallback, observed 2026-08-14T15:12:07.187676Z
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-16T06:30:59.297886+00:00.
Pith citing papers
No inbound Pith citation observations are available.