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D-branes with Lorentzian signature in the Nappi-Witten model

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R. Hernandez, G. Horcajada, F. Ruiz Ruiz

High Energy Physics - Theory · Submitted 25 Apr 2011

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

The authors' main claim Lorentzian signature D-branes of all dimensions for the Nappi-Witten string are constructed.

how it is stated · asserted 1.00 read the record →

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arXiv ID1104.4730 (version 3)
Pith IDOZHNTLFN, Pith's permanent record of this paper and its review
CitationF. Ruiz Ruiz, G. Horcajada, R. Hernandez. "D-branes with Lorentzian signature in the Nappi-Witten model." arXiv:1104.4730 (2011). https://pith.science/paper/OZHNTLFN
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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, 3,549 input tokens, $0.0001 reported.

What the abstract itself states, as probabilities: claims first 0.05 · states limitation 0.48 · human participants 0.01 · controlled comparison 0.03 · randomized assignment 0.01 · states quantitative result 0.06 · compares with prior results 0.41 · mentions code or data availability 0.02.

The abstract, sentence by sentence

arXiv listing abstract v3. Results and the main claim are underlined; .

Lorentzian signature D-branes of all dimensions for the Nappi-Witten string are constructed. This is done by rewriting the gluing condition $J_+=FJ_-$ for the model chiral currents on the brane as a well posed first order differential problem and by solving it for Lie algebra isometries $F$ other than Lie algebra automorphisms. By construction, these D-branes are not twined conjugacy classes. Metrically degenerate D-branes are also obtained.

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 Lorentzian signature D-branes of all dimensions for the Nappi-Witten string are constructed. contribution 0.68 0.93 0.79 asserted 1.00
s1 This is done by rewriting the gluing condition $J_+=FJ_-$ for the model chiral currents on the brane as a well posed first order differential problem and by solving it for Lie algebra isometries $F$ other than Lie algebra automorphisms. method 1.00 0.93 0.19 asserted 1.00
s2 By construction, these D-branes are not twined conjugacy classes. result 0.92 0.88 0.20 asserted 1.00
s3 Metrically degenerate D-branes are also obtained. result 0.96 0.92 0.09 asserted 1.00

What kind of paper the classifier reports this is: theoretical result 0.99 · evidence from proof or derivation 1.00.

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  • references and citing sentences
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  • P abstract
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  • 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

Lorentzian signature D-branes of all dimensions for the Nappi-Witten string are constructed. This is done by rewriting the gluing condition $J_+=FJ_-$ for the model chiral currents on the brane as a well posed first order differential problem and by solving it for Lie algebra isometries $F$ other than Lie algebra automorphisms. By construction, these D-branes are not twined conjugacy classes. Metrically degenerate D-branes are also obtained.

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1 arXiv paper cite this in 5 sentences

Each citing sentence is taken from the citing paper's LaTeX source and typed by Pith's classifier. A label appears at probability 0.8 or more (0.95 for support), a contest at 0.7 or more; the quoted words are the citing authors'. How each label was checked · JSON

Papers citing it · 4 sentences without a confident label

Cites it as background 1 paper
  • Among them, the geometric approach [ref] , that regards D-branes as spacetime's submanifolds on which the string worldsheet boundary may be embedded, and the algebraic approach [ref] , that makes use of boundary conformal field theory.

    Geometric construction of D-branes in WZW models · Introduction · 0.99

What it cites · 30 sentences without a confident label

Cites as background 18 papers

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