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We use a sheaf-theoretic approach to obtain a blow-up formula for Dolbeault cohomology groups with values in the holomorphic vector bundle over a compact complex manifold. As applications, we present several positive (or negative) examples…

Algebraic Geometry · Mathematics 2018-12-07 Sheng Rao , Song Yang , Xiangdong Yang

Let $(M^{n},g)$ be a closed, connected, oriented, $C^{\infty}$, Riemannian, n-manifold with a transversely oriented foliation $\boldkey F$. We show that if $\lbrace X,Y \rbrace$ are basic vector fields, the leaf component of $[X,Y]$,…

Differential Geometry · Mathematics 2007-05-23 Gabriel Baditoiu , Richard H. Escobales , Stere Ianus

Geometric conditions are given so that the leafwise reduced cohomology is of infinite dimension, specially for foliations with dense leaves on closed manifolds. The main new definition involved is the intersection number of subfoliations…

Geometric Topology · Mathematics 2013-11-15 Jesús A. Álvarez López , Gilbert Hector

In this work we study the geometric properties of spacelike foliations by hypersurfaces on a Lorentz manifold. We find an equation that relates the foliation with the ambient manifold and apply it to investigate conditions for the leaves…

Differential Geometry · Mathematics 2023-08-29 Rosa Maria dos Santos Barreiro Chaves , Euripedes Carvalho da Silva

We construct the space of infinitesimal variations for the Strominger system and an obstruction space to integrability, using elliptic operator theory. We initiate the study of the geometry of the moduli space, describing the infinitesimal…

Differential Geometry · Mathematics 2019-07-25 Mario Garcia-Fernandez , Roberto Rubio , Carl Tipler

We study the following Liouville system defined on a compact Riemann surface $M$, \begin{equation} -\Delta u_i=\sum_{j=1}^n a_{ij}\rho_j\Big(\frac{h_j e^{u_j}}{\int_\Omega h_j e^{u_j}}-1\Big)\mbox{ in }M\mbox{ for }i=1,\cdots,n,\nonumber…

Analysis of PDEs · Mathematics 2025-10-01 Zetao Cheng , Haoyu Li , Lei Zhang

A codimension one singular holomorphic foliation is Newton non-degenerate if it satisfies the classical conditions of Kouchnirenko and Oka, in terms of its Newton polyhedra system. In this paper we prove that a foliation is Newton…

Dynamical Systems · Mathematics 2020-05-19 Beatriz Molina-Samper

We consider the $L^2$ gradient flow for the Willmore functional in Riemannian manifolds of bounded geometry. In the euclidean case E.\;Kuwert and R.\;Sch\"atzle [\textsl{Gradient flow for the Willmore functional,} Comm. Anal. Geom., 10:…

Differential Geometry · Mathematics 2013-08-29 Florian Link

In this article, we study the L2-transverse conformal Killing forms on complete foliated Riemannian manifolds and prove some vanishing theorems. Also, we study the same problems on Kahler foliations with a complete bundle-like metric.

Differential Geometry · Mathematics 2020-03-16 Seoung Dal Jung , Huili Liu

We define and make an initial study of (even) Riemannian supermanifolds equipped with a homological vector field that is also a Killing vector field. We refer to such supermanifolds as Riemannian Q-manifolds. We show that such Q-manifolds…

Mathematical Physics · Physics 2020-09-02 Andrew James Bruce

We study the monodromy diffeomorphism of Milnor fibrations of isolated complex surface singularities, by computing the family Seiberg--Witten invariant of Seifert-fibered Dehn twists using recent advances in monopole Floer homology. More…

Geometric Topology · Mathematics 2024-09-19 Hokuto Konno , Jianfeng Lin , Anubhav Mukherjee , Juan Muñoz-Echániz

Integral formulae for foliated Riemannian manifolds provide obstructions for existence of foliations or compact leaves of them with given geometric properties. This paper continues our recent study and presents new integral formulae and…

Differential Geometry · Mathematics 2019-11-21 Vladimir Rovenski , Paweł Walczak

We investigate compact Hausdorff foliations on compact Riemannian manifolds in the context of the Gromov-Hausdorff distance theory. We give some sufficient conditions for such foliations to be separated in the Gromov-Hausdorff topology.

Differential Geometry · Mathematics 2008-12-23 Wojciech Kozłowski , Szymon M. Walczak

Starting from the axiomatic description of meromorphic functions with prescribed analytic properties, we introduce the cosimplicial cohomology of restricted meromorphic functions defined on foliations of smooth complex manifolds. Spaces for…

Functional Analysis · Mathematics 2023-07-24 A. Zuevsky

Starting with a concise review of quaternionic geometry and quaternionic K{\"a}hler manifolds, we define a transversely quaternionic K{\"a}hler foliation. Then we formulate and prove the foliated versions of the now classical results of…

Differential Geometry · Mathematics 2025-12-16 Rouzbeh Mohseni , Robert A. Wolak

Recent work has provided compelling evidence challenging the foundational manifold hypothesis for the token embedding spaces of Large Language Models (LLMs). These findings reveal the presence of geometric singularities around polysemous…

Algebraic Geometry · Mathematics 2025-11-03 Dongfang Zhao

We generalize work of Deligne and Gillet-Soul\'e on a Riemann-Roch type isometry, to the case of the trivial sheaf on cusp compactifications of Riemann surfaces $\Gamma\backslash\mathbb{H}$, for $\Gamma\subset PSL_{2}(\mathbb{R})$ a…

Number Theory · Mathematics 2016-09-23 Gerard Freixas i Montplet , Anna von Pippich

Fulton and MacPherson famously constructed a configuration space that encodes infinitesimal collision data by blowing up the diagonals. We observe that when generalizing their approach to configuration spaces of filtered manifolds (e.g. jet…

Differential Geometry · Mathematics 2025-04-16 Aaron Gootjes-Dreesbach

Let $X$ be a connected non-compact $2$-dimensional manifold possibly with boundary and $\Delta$ be a foliation on $X$ such that each leaf $\omega\in\Delta$ is homeomorphic to $\mathbb{R}$ and has a trivially foliated neighborhood. Such…

Geometric Topology · Mathematics 2016-10-04 Sergiy Maksymenko , Eugene Polulyakh

We study twisted cohomologies with paracompactifying families of supports. The Kunneth theorems, Leray-Hirsch theorems and self-intersection formulae are established. Based on these results, we eventually give explicit expressions of…

Algebraic Geometry · Mathematics 2020-10-08 Lingxu Meng