Typed states for the displayed outbound observations.
Source: paper_references, paper_reference_links, observed 2026-08-14T12:55:49.358334Z
Paper Citation Record · LEDGER
On the ${\Ext}^2$-problem for Hilbert spaces
As of 16 August 2026, this Paper Citation Record lists 28 of 28 outbound references and 0 inbound Pith citation observations for arXiv:1908.06529.
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
28 of 28 outbound references displayed
- verified exact0
- verified fuzzy26
- unresolved2
- parse uncertain0
- malformed identifier0
- metadata mismatch0
External citation measurements
No source-named external measurement is stored.
Outbound references
Observation 5b399b44-d1b4-42a4-9f58-7953108f491a · outbound
This paper cites Cabello S´ anchez, Nonlinear centralizers in homology , Math.
On the ${\Ext}^2$-problem for Hilbert spaces Cabello S´ anchez, Nonlinear centralizers in homology , Math
Reference 1
- Resolution
- verified fuzzy
- raw_fallback, observed 2026-08-14T12:55:50.118706Z
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 d5534582-04b5-409a-8ee2-54821d354511 · outbound
This paper cites Cabello S´ anchez, Pointwise tensor products of function spaces , J.
On the ${\Ext}^2$-problem for Hilbert spaces Cabello S´ anchez, Pointwise tensor products of function spaces , J
Reference 2
- Resolution
- verified fuzzy
- raw_fallback, observed 2026-08-14T12:55:50.091475Z
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 77b8b0bc-6068-4efc-a39a-4c7ef0c5067a · outbound
This paper cites Cabello S´ anchez, J.M.F.
On the ${\Ext}^2$-problem for Hilbert spaces Cabello S´ anchez, J.M.F
Reference 3
- Resolution
- verified fuzzy
- raw_fallback, observed 2026-08-14T12:55:50.067679Z
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 5cfd7d6b-761d-4e0b-a126-0d66c3d57c6f · outbound
This paper cites Cabello S´ anchez, J.M.F.
On the ${\Ext}^2$-problem for Hilbert spaces Cabello S´ anchez, J.M.F
Reference 4
- Resolution
- verified fuzzy
- raw_fallback, observed 2026-08-14T12:55:50.037467Z
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 0ca4ec27-1c2c-4092-82bc-961e9cdc51dc · outbound
This paper cites Cabello S´ anchez, J.M.F.
On the ${\Ext}^2$-problem for Hilbert spaces Cabello S´ anchez, J.M.F
Reference 5
- Resolution
- verified fuzzy
- raw_fallback, observed 2026-08-14T12:55:50.011203Z
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 7bf382c3-ccbb-44a1-8095-63f64b6ab357 · outbound
This paper cites Cabello S´ anchez, J.M.F.
On the ${\Ext}^2$-problem for Hilbert spaces Cabello S´ anchez, J.M.F
Reference 6
- Resolution
- verified fuzzy
- raw_fallback, observed 2026-08-14T12:55:49.987590Z
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 582eae47-1090-4902-8379-cafe5758f31d · outbound
This paper cites Banach spaces and their applications in Analysis.
On the ${\Ext}^2$-problem for Hilbert spaces Banach spaces and their applications in Analysis
Reference 7
- Resolution
- verified fuzzy
- raw_fallback, observed 2026-08-14T12:55:49.960503Z
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 8fa2663c-5ed1-4ccf-873e-e5ea5cf1294b · outbound
This paper cites Castillo, W.
On the ${\Ext}^2$-problem for Hilbert spaces Castillo, W
Reference 8
- Resolution
- verified fuzzy
- raw_fallback, observed 2026-08-14T12:55:49.932544Z
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 9fa77001-8e14-41eb-b5b4-c8a20e30363b · outbound
This paper cites Castillo, R.
On the ${\Ext}^2$-problem for Hilbert spaces Castillo, R
Reference 9
- Resolution
- verified fuzzy
- raw_fallback, observed 2026-08-14T12:55:49.908457Z
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 0e99fa65-8613-41e9-8e66-eedff9ba1c70 · outbound
This paper cites Castillo, D.
On the ${\Ext}^2$-problem for Hilbert spaces Castillo, D
Reference 10
- Resolution
- verified fuzzy
- raw_fallback, observed 2026-08-14T12:55:49.880085Z
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 95a8a8cf-fe3a-4786-82e5-50090084528b · outbound
This paper cites an unresolved cited work.
On the ${\Ext}^2$-problem for Hilbert spaces Unresolved cited work
Reference 11
- Resolution
- unresolved
- raw_fallback, observed 2026-08-14T12:55:49.852689Z
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 0bfa9825-d233-4af0-b295-00063ba63d46 · outbound
This paper cites Frerick, D.
On the ${\Ext}^2$-problem for Hilbert spaces Frerick, D
Reference 12
- Resolution
- verified fuzzy
- raw_fallback, observed 2026-08-14T12:55:49.823835Z
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 70335c7d-0b28-41a0-b5a2-1b37ab6299cf · outbound
This paper cites Greenleaf, Invariant means on topological groups and their applicatio ns.
On the ${\Ext}^2$-problem for Hilbert spaces Greenleaf, Invariant means on topological groups and their applicatio ns
Reference 13
- Resolution
- verified fuzzy
- raw_fallback, observed 2026-08-14T12:55:49.800303Z
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 00de34bd-3ea0-4a3f-a26d-68db42760cd5 · outbound
This paper cites Hilton, U.
Reference 14
- Resolution
- verified fuzzy
- raw_fallback, observed 2026-08-14T12:55:49.778195Z
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 075721e6-bf17-4782-b7bb-030e72cc5dee · outbound
This paper cites Kalton, The three-space problem for locally bounded F-spaces , Compositio Math.
On the ${\Ext}^2$-problem for Hilbert spaces Kalton, The three-space problem for locally bounded F-spaces , Compositio Math
Reference 15
- Resolution
- verified fuzzy
- raw_fallback, observed 2026-08-14T12:55:49.755004Z
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 cbeb943d-5327-4d53-8077-6d11cca49191 · outbound
This paper cites Kalton, Nonlinear commutators in interpolation theory , Memoirs of the AMS, vol.
On the ${\Ext}^2$-problem for Hilbert spaces Kalton, Nonlinear commutators in interpolation theory , Memoirs of the AMS, vol
Reference 16
- Resolution
- verified fuzzy
- raw_fallback, observed 2026-08-14T12:55:49.730833Z
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 6e39f12a-37eb-4c44-9c0b-33caa114cf9d · outbound
This paper cites Kalton, Differentials of complex interpolation processes for K¨ othe function spaces , Trans.
On the ${\Ext}^2$-problem for Hilbert spaces Kalton, Differentials of complex interpolation processes for K¨ othe function spaces , Trans
Reference 17
- Resolution
- verified fuzzy
- raw_fallback, observed 2026-08-14T12:55:49.709966Z
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 a9f5288b-eee8-41d6-979e-5bf33edc2c1e · outbound
This paper cites Kalton, Quasi-Banach spaces, in Handbook of the geometry of Banach spaces, Vol.
On the ${\Ext}^2$-problem for Hilbert spaces Kalton, Quasi-Banach spaces, in Handbook of the geometry of Banach spaces, Vol
Reference 18
- Resolution
- verified fuzzy
- raw_fallback, observed 2026-08-14T12:55:49.683673Z
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 5233ab34-bd77-4afa-9753-85c4088b971e · outbound
This paper cites Kalton, Extension of linear operators and Lipschitz maps into C(K)-spaces, New York J.
On the ${\Ext}^2$-problem for Hilbert spaces Kalton, Extension of linear operators and Lipschitz maps into C(K)-spaces, New York J
Reference 19
- Resolution
- verified fuzzy
- raw_fallback, observed 2026-08-14T12:55:49.654336Z
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 285cbbc0-8f19-419a-b705-227d5eb13b3c · outbound
This paper cites Kalton, S.
Reference 20
- Resolution
- verified fuzzy
- raw_fallback, observed 2026-08-14T12:55:49.630263Z
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 ea50de66-494f-4274-86c5-76f555977a64 · outbound
This paper cites Kalton, N.T.
On the ${\Ext}^2$-problem for Hilbert spaces Kalton, N.T
Reference 21
- Resolution
- verified fuzzy
- raw_fallback, observed 2026-08-14T12:55:49.604253Z
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 952e1d09-f565-4fc5-8aaa-c5a321d1570d · outbound
This paper cites Kalton, W.
Reference 22
- Resolution
- verified fuzzy
- raw_fallback, observed 2026-08-14T12:55:49.578241Z
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 1e66b8b5-dce7-424d-a011-568464c0276c · outbound
This paper cites MacLane, Homology, Grund.
On the ${\Ext}^2$-problem for Hilbert spaces MacLane, Homology, Grund
Reference 23
- Resolution
- verified fuzzy
- raw_fallback, observed 2026-08-14T12:55:49.547301Z
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 a86dc59d-7311-4901-9f2a-b4734b3727f3 · outbound
This paper cites Moreno Salguero, Theory of z-linear maps , Ph.D.
On the ${\Ext}^2$-problem for Hilbert spaces Moreno Salguero, Theory of z-linear maps , Ph.D
Reference 24
- Resolution
- verified fuzzy
- raw_fallback, observed 2026-08-14T12:55:49.512730Z
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 e71bde80-bced-4238-9c08-1c676330a436 · outbound
This paper cites Palamodov, Homological methods in the theory of locally convex spaces.
On the ${\Ext}^2$-problem for Hilbert spaces Palamodov, Homological methods in the theory of locally convex spaces
Reference 25
- Resolution
- verified fuzzy
- raw_fallback, observed 2026-08-14T12:55:49.484198Z
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 2bd1c2fb-a61e-450b-a1b1-3cc7a2f39410 · outbound
This paper cites Ribe, Examples for the nonlocally convex three space problem , Proc.
On the ${\Ext}^2$-problem for Hilbert spaces Ribe, Examples for the nonlocally convex three space problem , Proc
Reference 26
- Resolution
- verified fuzzy
- raw_fallback, observed 2026-08-14T12:55:49.462209Z
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 0c10df8d-a197-4efb-ad9f-2ad7b85ad8f6 · outbound
This paper cites Roberts, A non-locally convex F -space with the Hahn-Banach extension property , LNM 604, Springer (1977).
On the ${\Ext}^2$-problem for Hilbert spaces Roberts, A non-locally convex F -space with the Hahn-Banach extension property , LNM 604, Springer (1977)
Reference 27
- Resolution
- verified fuzzy
- raw_fallback, observed 2026-08-14T12:55:49.442614Z
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 7ed060fd-e69b-4fd3-95d6-2e14fdc019ff · outbound
This paper cites an unresolved cited work.
On the ${\Ext}^2$-problem for Hilbert spaces Unresolved cited work
Reference 28
- Resolution
- unresolved
- raw_fallback, observed 2026-08-14T12:55:49.419364Z
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.