[Sur la cohérence du sous-faisceau $L^2$ pour une métrique hermitienne singulière dont le déterminant a des singularités analytiques]
We study the sheaf of the locally square integrable holomorphic section of a vector bundle with semi-positive curved singular Hermitian metric. We confirm the coherence when its induced determinant metric has analytic singularities.
Nous étudions le faisceau des sections holomorphes localement à carré intégrable d’un fibré vectoriel avec une métrique hermitienne singulière à courbure semi-positive. Nous confirmons la cohérence lorsque la métrique déterminante induite présente des singularités analytiques.
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Keywords: coherent analytic sheaves, singular Hermitian metric, Griffiths positive
Mots-clés : faisceaux analytiques cohérents, métrique hermitienne singulière, positif au sens de Griffiths
Zou, Yongpan  1
@unpublished{AIF_0__0_0_A71_0,
author = {Zou, Yongpan},
title = {On the coherence of the $L^2$ subsheaf for a~singular {Hermitian} metric whose determinant has analytic singularities},
journal = {Annales de l'Institut Fourier},
year = {2026},
publisher = {Association des Annales de l{\textquoteright}institut Fourier},
doi = {10.5802/aif.3782},
language = {en},
note = {Online first},
}
TY - UNPB AU - Zou, Yongpan TI - On the coherence of the $L^2$ subsheaf for a singular Hermitian metric whose determinant has analytic singularities JO - Annales de l'Institut Fourier PY - 2026 PB - Association des Annales de l’institut Fourier N1 - Online first DO - 10.5802/aif.3782 LA - en ID - AIF_0__0_0_A71_0 ER -
%0 Unpublished Work %A Zou, Yongpan %T On the coherence of the $L^2$ subsheaf for a singular Hermitian metric whose determinant has analytic singularities %J Annales de l'Institut Fourier %D 2026 %V 0 %N 0 %I Association des Annales de l’institut Fourier %Z Online first %R 10.5802/aif.3782 %G en %F AIF_0__0_0_A71_0
Zou, Yongpan. On the coherence of the $L^2$ subsheaf for a singular Hermitian metric whose determinant has analytic singularities. Annales de l'Institut Fourier, Online first, 16 p.
[1] Bergman kernels and the pseudoeffectivity of relative canonical bundles, Duke Math. J., Volume 145 (2008) no. 2, pp. 341-378 | MR | DOI | Zbl
[2] Singular Hermitian metrics on vector bundles, J. Reine Angew. Math., Volume 502 (1998), pp. 93-122 | MR | DOI | Zbl
[3] Analytic methods in algebraic geometry, Surveys of Modern Mathematics, 1, International Press, 2012 | MR | Zbl
[4] Complex Analytic and Differential Geometry, 2012 (Open-Content Book, freely available from the author’s web site at https://www-fourier.univ-grenoble-alpes.fr/~demailly/manuscripts/agbook.pdf)
[5] Relations entre les notions de positivité de P. A. Griffiths et de S. Nakano, Séminaire P. Lelong–Skoda, H. (Analyse), année 1978/79 (Lecture Notes in Mathematics), Volume 22, Springer, 1980, pp. 304-309 | DOI | MR | Zbl
[6] Approximations and examples of singular Hermitian metrics on vector bundles, Ark. Mat., Volume 55 (2017) no. 1, pp. 131-153 | MR | DOI | Zbl
[7] A converse of Hörmander’s -estimate and new positivity notions for vector bundles, Sci. China, Math., Volume 64 (2021) no. 8, pp. 1745-1756 | MR | DOI | Zbl
[8] estimates and vanishing theorems for holomorphic vector bundles equipped with singular Hermitian metrics, Mich. Math. J., Volume 69 (2020) no. 1, pp. 79-96 | MR | DOI | Zbl
[9] Nakano positivity of singular Hermitian metrics and vanishing theorems of Demailly–Nadel–Nakano type, Algebr. Geom., Volume 9 (2022) no. 1, pp. 69-92 | MR | DOI | Zbl
[10] Singular Hermitian metrics with isolated singularities, Nagoya Math. J., Volume 248 (2022), pp. 980-989 | MR | DOI | Zbl
[11] Nadel–Nakano vanishing theorems of vector bundles with singular Hermitian metrics, Ann. Fac. Sci. Toulouse, Math. (6), Volume 30 (2021) no. 1, pp. 63-81 | Numdam | MR | DOI | Zbl
[12] Positivity of twisted relative pluricanonical bundles and their direct images, J. Algebr. Geom., Volume 27 (2018) no. 2, pp. 211-272 | DOI | MR | Zbl
[13] Singular Hermitian metrics on holomorphic vector bundles, Ark. Mat., Volume 53 (2015) no. 2, pp. 359-382 | MR | DOI | Zbl
[14] Variation of Hodge structure: the singularities of the period mapping, Invent. Math., Volume 22 (1973), pp. 211-319 | MR | DOI | Zbl
[15] Hodge modules and Singular Hermitian Metrics, Math. Z., Volume 303 (2023), 28, 20 pages | MR | DOI | Zbl
[16] -Dolbeault resolution of the lowest Hodge piece of a Hodge module and an Application to the Relative Fujita Conjecture (2021) | arXiv | Zbl
[17] Every Stein subvariety admits a Stein neighborhood, Invent. Math., Volume 38 (1976), pp. 89-100 | MR | DOI | Zbl
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