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We upgrade the classical operation of \textit{isomonodromic deformations} along a path $\gamma$ to a functor $\mathbb{P}_{\gamma}$ between categories of flat connections with logarithmic singularities along a divisor $D$, which itself…

Algebraic Geometry · Mathematics 2025-12-08 Waleed Qaisar

We prove that the filtered GRID invariants of Legendrian links in link Floer homology, and consequently their associated invariants in the spectral sequence, obstruct decomposable Lagrangian cobordisms in the symplectization of the standard…

Geometric Topology · Mathematics 2024-09-19 Mitchell Jubeir , Ina Petkova , Noah Schwartz , Zachary Winkeler , C. -M. Michael Wong

We construct, for a second-order homogeneous Lagrangian in two independent variables, a differential 2-form with the property that it is closed precisely when the Lagrangian is null. This is similar to the property of the 'fundamental…

Differential Geometry · Mathematics 2007-05-23 D. J. Saunders

The purpose of this paper is to establish several new results about the Hodge theory of Lagrangian fibrations on (not necessarily compact) holomorphic symplectic manifolds. Let $M$ be a holomorphic symplectic manifold of dimension $2n$ that…

Algebraic Geometry · Mathematics 2026-03-17 Christian Schnell

We define a new family of spectral invariants associated to certain Lagrangian links in compact and connected surfaces of any genus. We show that our invariants recover the Calabi invariant of Hamiltonians in their limit. As applications,…

Symplectic Geometry · Mathematics 2024-04-02 Daniel Cristofaro-Gardiner , Vincent Humilière , Cheuk Yu Mak , Sobhan Seyfaddini , Ivan Smith

The main theorem of this paper asserts that the inclusion of the space of projective Lagrangian planes into the space of Lagrangian submanifolds of complex projective space induces an injective homomorphism of fundamental groups. We…

Symplectic Geometry · Mathematics 2007-05-23 Meike Akveld , Dietmar Salamon

In this paper, we introduce a category of graded commutative rings with certain algebraic morphisms, to investigate the cobordism category of plumbed 3-manifolds. In particular, we define a non-associative distributive algebra that gives…

Geometric Topology · Mathematics 2009-01-27 Yoshihiro Fukumoto

We study holomorphic discs with boundary on a Lagrangian submanifold $L$ in a Kaehler manifold admitting a Hamiltonian action of a group $K$ which has $L$ as an orbit. We prove various transversality and classification results for such…

Symplectic Geometry · Mathematics 2014-11-20 Jonathan David Evans , Yanki Lekili

Since spectral invariants were introduced in cotangent bundles via generating functions by Viterbo in the seminal paper "Symplectic topology as the geometry of generating functions," they have been defined in various contexts, mainly via…

Symplectic Geometry · Mathematics 2015-09-30 Rémi Leclercq , Frol Zapolsky

In this notes, we study some basic deformation of A-infinity algebra. It includes a two-dimensional rescaling deformation and the Maurer-Cartan element or bounding cochain deformation used in Lagrangian Floer Homology theory. We show that…

Quantum Algebra · Mathematics 2013-10-15 Jie Zhao

It follows implicitly from recent work in Heegaard Floer theory that lens spaces are homology cobordant exactly when they are oriented homeomorphic. We provide a new combinatorial proof using the Heegaard Floer d-invariants, which…

Geometric Topology · Mathematics 2015-05-27 Margaret Doig , Stephan Wehrli

We establish a structural understanding of the involutive Heegaard Floer homology for all linear combinations of almost-rational (AR) plumbed three-manifolds. We use this to show that the Neumann-Siebenmann invariant is a homology cobordism…

Geometric Topology · Mathematics 2019-04-17 Irving Dai , Matthew Stoffregen

We construct the deformation functor associated with a pair of morphisms of differential graded Lie algebras, and use it to study infinitesimal deformations of holomorphic maps of compact complex manifolds. In particular, using L-infinity…

Algebraic Geometry · Mathematics 2008-04-03 Donatella Iacono

We define two functors from Elias and Khovanov's diagrammatic Soergel category, one targeting Clark-Morrison-Walker's category of disoriented sl(2) cobordisms and the other the category of (universal) sl(3) foams.

Quantum Algebra · Mathematics 2010-04-09 Pedro Vaz

Using an appropriate notion of locally convex Kasparov modules, we show how to induce isomorphisms under a large class of functors on the category of locally convex algebras; examples are obtained from spectral triples. Our considerations…

K-Theory and Homology · Mathematics 2011-09-09 Martin Grensing

We construct a functor which maps conjugate pseudo-Anosov automorphisms of a surface to the so-called stably isomorphic stationary AF-algebras; the functor gives new topological invariants of three dimensional manifolds coming from the…

Geometric Topology · Mathematics 2013-08-09 Igor Nikolaev

Fix a suitably convex, exact symplectic manifold M. We consider the stable oo-category Lag(M) of non-compact Lagrangians whose (higher) morphisms are (higher) Lagrangian cobordisms between them. We show that this oo-category pairs with the…

Symplectic Geometry · Mathematics 2016-07-19 Hiro Lee Tanaka

We extend the hierarchy functors of [33] to the case of strong symplectic cobordisms, via deformations with Maurer--Cartan elements. In particular, we prove that the concave boundary of a strong cobordism has finite algebraic planar torsion…

Symplectic Geometry · Mathematics 2025-12-24 Agustin Moreno , Zhengyi Zhou

In this article, we are concerned with the Langlands functoriality conjecture. Cogdell, Kim, Piatetski-Shapiro and Shahidi proved functioriality conjecture in the case of a globally generic cuspidal automorphic representation for the split…

Number Theory · Mathematics 2022-01-11 Héctor del Castillo

Given a finite quandle, we introduce a quandle homotopy invariant of knotted surfaces in the 4-sphere, modifying that of classical links. This invariant is valued in the third homotopy group of the quandle space, and is universal among the…

Algebraic Topology · Mathematics 2015-03-17 Takefumi Nosaka
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