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Event Horizons in Numerical Relativity II: Analyzing the Horizon

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Paper breakdownThe authors' claims, conditions and measurements, as JSON Signed receiptProof this review has not been altered
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Joan Masso, Edward Seidel, Wai-Mo Suen, Paul Walker

General Relativity and Quantum Cosmology · Submitted 23 Apr 1998

abstract compiled · 2026-09-23 · no language-model review

The authors' main claim We present techniques and methods for analyzing the dynamics of event horizons in numerically constructed spacetimes.

how it is stated · asserted 0.99 read the record →

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arXiv IDgr-qc/9804059 (version 1)
Pith ID7WKDFNPQ, Pith's permanent record of this paper and its review
CitationEdward Seidel, Joan Masso, Paul Walker, Wai-Mo Suen. "Event Horizons in Numerical Relativity II: Analyzing the Horizon." arXiv:gr-qc/9804059 (1998). https://pith.science/paper/7WKDFNPQ
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The paper's own sentences, arranged. Each label is drawn from a closed vocabulary; the number beside it is the probability the classifier gave that label. Numbers in the tables are the authors', checked by code. No sentence in this record was written by a model.

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Compiled by classifier-1.13-20260917 via OpenRouter, question bank abstract-p1-20260923, 2026-09-23: 1 request, 4,764 input tokens, $0.0002 reported.

What the abstract itself states, as probabilities: claims first 0.04 · states limitation 0.05 · human participants 0.01 · controlled comparison 0.03 · randomized assignment 0.01 · states quantitative result 0.04 · compares with prior results 0.24 · mentions code or data availability 0.02.

The abstract, sentence by sentence

arXiv listing abstract v1. Results and the main claim are underlined; .

We present techniques and methods for analyzing the dynamics of event horizons in numerically constructed spacetimes. There are three classes of analytical tools we have investigated. The first class consists of proper geometrical measures of the horizon which allow us comparison with perturbation theory and powerful global theorems. The second class involves the location and study of horizon generators. The third class includes the induced horizon 2-metric in the generator comoving coordinates and a set of membrane-paradigm like quantities. Applications to several distorted, rotating, and colliding black hole spacetimes are provided as examples of these techniques.

background contribution method result interpretation main claim

What the classifier reports for each sentence. The number is the probability it gave the label.
#sentencerolethe authors' own workstates the main conclusionstrength
s0 We present techniques and methods for analyzing the dynamics of event horizons in numerically constructed spacetimes. contribution 1.00 0.87 0.16 asserted 0.99
s1 There are three classes of analytical tools we have investigated. contribution 0.77 0.83 0.03 asserted 1.00
s2 The first class consists of proper geometrical measures of the horizon which allow us comparison with perturbation theory and powerful global theorems. method 0.80 0.57 0.06 asserted 1.00
s3 The second class involves the location and study of horizon generators. method 0.61 0.69 0.03 asserted 0.96
s4 The third class includes the induced horizon 2-metric in the generator comoving coordinates and a set of membrane-paradigm like quantities. method 0.62 0.73 0.05 asserted 0.99
s5 Applications to several distorted, rotating, and colliding black hole spacetimes are provided as examples of these techniques. contribution 0.73 0.88 0.12 asserted 1.00

What kind of paper the classifier reports this is: method or tool 1.00 · evidence from simulation or computation 0.97.

What was examined, and what was not

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not examined
  • full text
  • figures and tables
  • references and citing sentences
  • relations to other papers
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  • P abstract
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  • S sections
  • T body sentences
  • C citations
  • R cross-paper relations

Every quoted sentence on this record is the authors'. Every label is from Pith's closed vocabulary, with the probability shown beside it. Every number in the measurements table is the authors', checked by code. Record as JSON

The paper
Original abstract

We present techniques and methods for analyzing the dynamics of event horizons in numerically constructed spacetimes. There are three classes of analytical tools we have investigated. The first class consists of proper geometrical measures of the horizon which allow us comparison with perturbation theory and powerful global theorems. The second class involves the location and study of horizon generators. The third class includes the induced horizon 2-metric in the generator comoving coordinates and a set of membrane-paradigm like quantities. Applications to several distorted, rotating, and colliding black hole spacetimes are provided as examples of these techniques.

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