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Related papers: On semipositivity theorems

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We prove a generalization of the Fujita-Kawamata-Zuo semi-positivity Theorem for filtered regular meromorphic Higgs bundles and tame harmonic bundles. Our approach gives a new proof in the cases already considered by these authors. We give…

Algebraic Geometry · Mathematics 2017-07-27 Yohan Brunebarbe

We propose a new class of filtered vector bundles, which is related to variation of (mixed) Hodge structures and give a slight generalization of the Fujita--Zucker--Kawamata semipositivity theorem.

Algebraic Geometry · Mathematics 2017-10-10 Taro Fujisawa

We discuss the variations of mixed Hodge structure for cohomology with compact support of quasi-projective simple normal crossing pairs. We show that they are graded polarizable admissible variations of mixed Hodge structure. Then we prove…

Algebraic Geometry · Mathematics 2014-03-18 Osamu Fujino , Taro Fujisawa

We shall prove an extension of the semipositivity theorem for the case of reducible algebraic fiber spaces.

Algebraic Geometry · Mathematics 2009-11-10 Yujiro Kawamata

We prove an analytic Bertini theorem, generalizing a previous result of Fujino and Matsumura.

Algebraic Geometry · Mathematics 2022-07-28 Mingchen Xia

In this paper, by using analytical methods we obtain a generalization of the famous Kodaira embedding theorem.

Differential Geometry · Mathematics 2019-09-27 Chao Li , Xi Zhang , QiZhi Zhao

In this paper we treat some applications of Kawamata's positivity theorem. We get a weak answer to \cite [Section 3]{KeMaMc}. And we investigate the singularities on the target spaces of some morphisms.

Algebraic Geometry · Mathematics 2007-05-23 Osamu Fujino

We present a generalization of Takegoshi's relative version of the Grauert-Riemenschneider vanishing theorem. Under some natural assumptions, we extend Takegoshi's vanishing theorem to the case of Nakano semi-positive coherent analytic…

Complex Variables · Mathematics 2016-08-11 Martin Sera

In this note, we state various generalisations of the Nakano vanishing theorem under weak positivity assumptions, and compare them with the known results.

Algebraic Geometry · Mathematics 2020-11-30 Xiaojun Wu

We give a twisted version of the Kawamata semi-positivity theorem by the $\mathbb{Q}$-line bundle with a vanishing Lelong number at every point. Moreover, we apply the result to the finite generation problem for canonical rings of Birkar's…

Algebraic Geometry · Mathematics 2025-12-08 Yoshinori Gongyo , Shigeharu Takayama

We characterize the category of co-semi-analytic functors and describe an action of semi-analytic functors on co-semi-analytic functors.

Category Theory · Mathematics 2013-05-15 Marek Zawadowski

In this article we formulate a version of the analytic Novikov conjecture for semigroups rather than groups, and show that the descent argument from coarse geometry generalises effectively to this new situation.

K-Theory and Homology · Mathematics 2016-11-25 Paul D. Mitchener

We give a formula of the Donaldson-Futaki invariants for certain type of semi test configurations, which essentially generalizes Ross-Thomas' slope theory. The positivity (resp. non-negativity) of those "a priori special" Donaldson-Futaki…

Algebraic Geometry · Mathematics 2011-04-18 Yuji Odaka

This is a survey article on the recent developments of semipositivity, injectivity, and vanishing theorems for higher-dimensional complex projective varieties.

Algebraic Geometry · Mathematics 2016-09-28 Osamu Fujino

We show that the dualizing sheaves of reduced simple normal crossings pairs have a canonical weight filtration in a compatible way with the one on the corresponding mixed Hodge modules by calculating the extension classes between the…

Algebraic Geometry · Mathematics 2013-06-25 Osamu Fujino , Taro Fujisawa , Morihiko Saito

In this paper, we collect basic properties of the Albanese dimension and explain how to generalize the main theorem of [F2](math.AG/0204262). This paper is a supplement and a generalization of [F2]. We also prove an inequality of…

Algebraic Geometry · Mathematics 2007-05-23 Osamu Fujino

The concept of weighted $\beta\gamma$ - summability of order $\theta$ in case of fuzzy functions is introduced and classified into ordinary and absolute sense. Several inclusion relations among the sets are investigated. Also we have found…

General Mathematics · Mathematics 2020-04-23 Sarita Ojha , P. D. Srivastava

We introduce $\Theta$-positivity, a new notion of positivity in real semisimple Lie groups. The notion of $\Theta$-positivity generalizes at the same time Lusztig's total positivity in split real Lie groups as well as well known concepts of…

Differential Geometry · Mathematics 2018-02-09 Olivier Guichard , Anna Wienhard

We give a generalization of Fujisawa's theorem in [F]. Our proof of the generalized theorem is purely algebraic and it is simpler than his proof.

Algebraic Geometry · Mathematics 2025-03-19 Yukiyoshi Nakkajima

We generalize a result of Ruzsa on the inverse Erdos-Fuchs theorem for k-fold sumsets.

Number Theory · Mathematics 2012-11-06 Li-Xia Dai , Hao Pan
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