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Paper Citation Record · LEDGER

A Partial Differential Equation Obstacle Problem for the Level Set Approach to Visibility

As of 16 August 2026, this Paper Citation Record lists 18 of 18 outbound references and 0 inbound Pith citation observations for arXiv:1908.00578.

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

pith.paper-citation-record.v1
1908.00578 v1

Coverage vector

measured 18 of 18 reference resolution

Typed states for the displayed outbound observations.

Source: paper_references, paper_reference_links, observed 2026-08-14T15:55:41.135859Z

measured 18 of 18 standing notices

One-hop event checks from named stored sources.

Source: scholarly_work_events, retraction_status_cache, observed 2026-08-15T06:32:42.880941+00:00

measured 0 of 0 inbound itemization

Pith citing papers itemized under the disclosed page cap.

Source: paper_references, paper_reference_links

measured 0 of 1 external citation measurements

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

Source: cited_works

Reference resolution

18 of 18 outbound references displayed

  • verified exact1
  • verified fuzzy10
  • unresolved7
  • parse uncertain0
  • malformed identifier0
  • metadata mismatch0

External citation measurements

No source-named external measurement is stored.

Outbound references

Observation a78e2388-cd5c-477a-9c91-33270b8c0bc4 · outbound

This paper cites Agarwal and Micha Sharir, Ray shooting amidst convex polygons in 2d, Journal of Algorithms 21 (1996), no.

A Partial Differential Equation Obstacle Problem for the Level Set Approach to Visibility Agarwal and Micha Sharir, Ray shooting amidst convex polygons in 2d, Journal of Algorithms 21 (1996), no

Reference 1

Resolution
verified fuzzy
raw_fallback, observed 2026-08-14T15:55:41.463222Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-15T06:32:42.880941+00:00.

source=arxiv_source observed=2026-08-14T15:55:41.060531Z digest=sha256:46eb6296ae5fe2c6b3da11765de72780c3f56848aacd9e2793242adfd8f21d84

Observation 14ab1d76-36e7-44cc-8d18-eb8de4006564 · outbound

This paper cites Agarwal and Micha Sharir, Ray shooting amidst convex polyhedra and polyhedral terrains in three dimensions, SIAM J.

A Partial Differential Equation Obstacle Problem for the Level Set Approach to Visibility Agarwal and Micha Sharir, Ray shooting amidst convex polyhedra and polyhedral terrains in three dimensions, SIAM J

Reference 2

Resolution
verified fuzzy
raw_fallback, observed 2026-08-14T15:55:41.450277Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-15T06:32:42.880941+00:00.

source=arxiv_source observed=2026-08-14T15:55:41.065473Z digest=sha256:bd9ddc5f6cbeb4693f84cd7278c8aeecdc18701a4d32c9b36f6dc54f61568167

Observation 385ac763-403e-4a57-9bda-587fbcd7c64e · outbound

This paper cites Souganidis, Convergence of approximation schemes for fully nonlinear second order equations, Asymptotic Anal.

A Partial Differential Equation Obstacle Problem for the Level Set Approach to Visibility Souganidis, Convergence of approximation schemes for fully nonlinear second order equations, Asymptotic Anal

Reference 3

Resolution
verified fuzzy
raw_fallback, observed 2026-08-14T15:55:41.432392Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-15T06:32:42.880941+00:00.

source=arxiv_source observed=2026-08-14T15:55:41.069891Z digest=sha256:25f424453c6a2ed997c3860585e9b5b28289a9524661c89dc0bc4025231bf11d

Observation 8de8edf4-d7d3-4d40-923f-ef4211ed2431 · outbound

This paper cites Crandall, Hitoshi Ishii, and Pierre-Louis Lions, User's guide to viscosity solutions of second order partial differential equations, Bull.

A Partial Differential Equation Obstacle Problem for the Level Set Approach to Visibility Crandall, Hitoshi Ishii, and Pierre-Louis Lions, User's guide to viscosity solutions of second order partial differential equations, Bull

Reference 4

Resolution
verified fuzzy
raw_fallback, observed 2026-08-14T15:55:41.403123Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-15T06:32:42.880941+00:00.

source=arxiv_source observed=2026-08-14T15:55:41.074974Z digest=sha256:20825bbca334bd2537bb1df5af3789a81929da6637318b626c5735c901f5610f

Observation a898f325-4a6b-4fd7-aebf-450b68216b94 · outbound

This paper cites an unresolved cited work.

A Partial Differential Equation Obstacle Problem for the Level Set Approach to Visibility Unresolved cited work

Reference 5

Resolution
unresolved
raw_fallback, observed 2026-08-14T15:55:41.383747Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-15T06:32:42.880941+00:00.

source=arxiv_source observed=2026-08-14T15:55:41.079687Z digest=sha256:489e6e8af8ccfa9d1835b09efc78c51848e592a21b425448d0ebe684bad2d4ac

Observation fbbb3bc6-8cf9-42ac-9439-15a359f4bb84 · outbound

This paper cites an unresolved cited work.

A Partial Differential Equation Obstacle Problem for the Level Set Approach to Visibility Unresolved cited work

Reference 6

Resolution
unresolved
raw_fallback, observed 2026-08-14T15:55:41.369911Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-15T06:32:42.880941+00:00.

source=arxiv_source observed=2026-08-14T15:55:41.083963Z digest=sha256:05ce0e22e3ec68b97864dcc2ad1596cb671ee68b0dd6d8ade0a826ae7eed2226

Observation 5f6920fa-79ec-497b-be71-74ca1a376cb2 · outbound

This paper cites an unresolved cited work.

A Partial Differential Equation Obstacle Problem for the Level Set Approach to Visibility Unresolved cited work

Reference 7

Resolution
unresolved
raw_fallback, observed 2026-08-14T15:55:41.354291Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-15T06:32:42.880941+00:00.

source=arxiv_source observed=2026-08-14T15:55:41.088834Z digest=sha256:89e48057ac5ce5e7313c6de642f7c6f13054a4451c5a692702a920595cbfc362

Observation 68dbf027-6a34-4661-aebc-1f68afc00603 · outbound

This paper cites an unresolved cited work.

A Partial Differential Equation Obstacle Problem for the Level Set Approach to Visibility Unresolved cited work

Reference 8

Resolution
unresolved
raw_fallback, observed 2026-08-14T15:55:41.340551Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-15T06:32:42.880941+00:00.

source=arxiv_source observed=2026-08-14T15:55:41.094952Z digest=sha256:f0063b71be1c449f96bff79bc5df1cf5749bb630f43f6b82701f10684936b934

Observation ea63d9a1-9b3b-435f-bc1e-6b6a69678cac · outbound

This paper cites 13, Mathematical Society of Japan, Tokyo, 2004.

A Partial Differential Equation Obstacle Problem for the Level Set Approach to Visibility 13, Mathematical Society of Japan, Tokyo, 2004

Reference 9

Resolution
verified fuzzy
raw_fallback, observed 2026-08-14T15:55:41.326343Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-15T06:32:42.880941+00:00.

source=arxiv_source observed=2026-08-14T15:55:41.099256Z digest=sha256:18d4e0ed819d241050043e2b323bf48d2b75326087889e25413ce696258585f4

Observation ab0d96a9-be94-4160-a72b-cdf7efd11fe5 · outbound

This paper cites 2, 170--191.

A Partial Differential Equation Obstacle Problem for the Level Set Approach to Visibility 2, 170--191

Reference 10

Resolution
verified fuzzy
raw_fallback, observed 2026-08-14T15:55:41.310831Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-15T06:32:42.880941+00:00.

source=arxiv_source observed=2026-08-14T15:55:41.103331Z digest=sha256:0fe343ead2791816ce5c4cd75323193bb34dd2cf160500f6b61ba9559f74120b

Observation 831f1316-11a5-482f-9e81-e73a05cccaf6 · outbound

This paper cites Greedy Algorithms for Sparse Sensor Placement via Deep Learning.

A Partial Differential Equation Obstacle Problem for the Level Set Approach to Visibility Greedy Algorithms for Sparse Sensor Placement via Deep Learning

Reference 11

Resolution
verified exact
local_arxiv, observed 2026-08-14T15:55:41.175938Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-15T06:32:42.880941+00:00.

source=arxiv_source observed=2026-08-14T15:55:41.107174Z digest=sha256:83715e43d642c9ca8859f2733ef2bda502753f7dddc245dbaabb7aa4b7c34170

Observation 406d4528-65bd-4a45-803a-96458e71e001 · outbound

This paper cites 1014--1025.

A Partial Differential Equation Obstacle Problem for the Level Set Approach to Visibility 1014--1025

Reference 12

Resolution
verified fuzzy
raw_fallback, observed 2026-08-14T15:55:41.290745Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-15T06:32:42.880941+00:00.

source=arxiv_source observed=2026-08-14T15:55:41.111491Z digest=sha256:7b7cfade4cd4856141129dadd3fdad287173ce14d5b950f38a0caa4d6e6bf1fb

Observation 504f6037-e6bb-4da5-85cd-244bac0c213f · outbound

This paper cites Oberman, Convergent difference schemes for degenerate elliptic and parabolic equations: H amilton- J acobi equations and free boundary problems , SIAM J.

A Partial Differential Equation Obstacle Problem for the Level Set Approach to Visibility Oberman, Convergent difference schemes for degenerate elliptic and parabolic equations: H amilton- J acobi equations and free boundary problems , SIAM J

Reference 13

Resolution
verified fuzzy
raw_fallback, observed 2026-08-14T15:55:41.272797Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-15T06:32:42.880941+00:00.

source=arxiv_source observed=2026-08-14T15:55:41.115641Z digest=sha256:941e43109936bd5598f5a3be5b96ca971822cdc4bfcaf72c19c7f2b841c73543

Observation 9d37fb89-01d9-468f-80b2-aea6a90fb49c · outbound

This paper cites Sethian, Fronts propagating with curvature-dependent speed: algorithms based on H amilton- J acobi formulations , J.

A Partial Differential Equation Obstacle Problem for the Level Set Approach to Visibility Sethian, Fronts propagating with curvature-dependent speed: algorithms based on H amilton- J acobi formulations , J

Reference 14

Resolution
verified fuzzy
raw_fallback, observed 2026-08-14T15:55:41.254432Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-15T06:32:42.880941+00:00.

source=arxiv_source observed=2026-08-14T15:55:41.120238Z digest=sha256:46021197a3bed5f1691363af086af4a29b3206581e6bddd1bb63caa98adf31fe

Observation caa17554-6f5c-4404-96c5-afc4c901b415 · outbound

This paper cites an unresolved cited work.

A Partial Differential Equation Obstacle Problem for the Level Set Approach to Visibility Unresolved cited work

Reference 15

Resolution
unresolved
raw_fallback, observed 2026-08-14T15:55:41.236341Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-15T06:32:42.880941+00:00.

source=arxiv_source observed=2026-08-14T15:55:41.124224Z digest=sha256:646ff1e42d1058465bd764a242196a124c38d483ba11764e9004588897cca005

Observation c6a8bac2-1e6c-41c9-83ef-b981b16b085b · outbound

This paper cites an unresolved cited work.

A Partial Differential Equation Obstacle Problem for the Level Set Approach to Visibility Unresolved cited work

Reference 16

Resolution
unresolved
raw_fallback, observed 2026-08-14T15:55:41.218553Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-15T06:32:42.880941+00:00.

source=arxiv_source observed=2026-08-14T15:55:41.128090Z digest=sha256:24af2baf7b92cb7ab933eb2d22f6529aa38045aa194be9353b3895722ef44c74

Observation e770a2dd-a336-4da0-8e45-84ccb1bab052 · outbound

This paper cites an unresolved cited work.

A Partial Differential Equation Obstacle Problem for the Level Set Approach to Visibility Unresolved cited work

Reference 17

Resolution
unresolved
raw_fallback, observed 2026-08-14T15:55:41.204487Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-15T06:32:42.880941+00:00.

source=arxiv_source observed=2026-08-14T15:55:41.132106Z digest=sha256:bb1e021c5e421c3bf111fb910fa0d7f07ddda0b2d7e998a1cad06d6db2dcf51f

Observation 190c59fc-265b-40cf-a578-684e1888b6ab · outbound

This paper cites Tsai, and Stefano Soatto, Information-seeking control under visibility-based uncertainty, J.

A Partial Differential Equation Obstacle Problem for the Level Set Approach to Visibility Tsai, and Stefano Soatto, Information-seeking control under visibility-based uncertainty, J

Reference 18

Resolution
verified fuzzy
raw_fallback, observed 2026-08-14T15:55:41.190478Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-15T06:32:42.880941+00:00.

source=arxiv_source observed=2026-08-14T15:55:41.135859Z digest=sha256:1f0d56f13e4089cc2633806728ee6ec41f912fc559506f27be5e90a621dc81f0

Pith citing papers

No inbound Pith citation observations are available.