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We construct an invariant of 3-manifolds using a modification of the Kontsevich integral and Kirby's calculus. This invariant, as expected in perturbative Chern-Simon theory, takes values in the algebra of oriented 3-valent graphs. This…

q-alg · Mathematics 2008-02-03 Thang T. Q. Le , Jun Murakami , Tomotada Ohtsuki

We study boundary conditions and defects in a three-dimensional topological sigma-model with a complex symplectic target space X (the Rozansky-Witten model). We show that boundary conditions correspond to complex Lagrangian submanifolds in…

High Energy Physics - Theory · Physics 2015-05-13 Anton Kapustin , Lev Rozansky , Natalia Saulina

We review some results concerning the deformations of calibrated minimal submanifolds which occur in Riemannian manifolds with special holonomy. The calibrated submanifolds are assumed compact with a non-empty boundary which is constrained…

Differential Geometry · Mathematics 2019-10-03 Alexei Kovalev

We present closed form expressions for the ranks of all cohomology groups of holomorphic line bundles on several Calabi-Yau threefolds realised as complete intersections in products of projective spaces. The formulae have been obtained by…

High Energy Physics - Theory · Physics 2020-02-19 Andrei Constantin , Andre Lukas

We develop a holonomy reduction procedure for general Cartan geometries. We show that, given a reduction of holonomy, the underlying manifold naturally decomposes into a disjoint union of initial submanifolds. Each such submanifold…

Differential Geometry · Mathematics 2014-05-08 Andreas Cap , A. Rod Gover , Matthias Hammerl

Aganagic and Shakirov propose a refinement of the SU(N) Chern-Simons theory for links in three manifolds with S^1-symmetry, such as torus knots in S^3, based on deformation of the S and T matrices, originally found by Kirillov and…

Algebraic Geometry · Mathematics 2016-08-25 Hiraku Nakajima

Using reduced Gromov-Witten theory, we define new invariants which capture the enumerative geometry of curves on holomorphic symplectic 4-folds. The invariants are analogous to the BPS counts of Gopakumar and Vafa for Calabi-Yau 3-folds,…

Algebraic Geometry · Mathematics 2024-02-27 Yalong Cao , Georg Oberdieck , Yukinobu Toda

The refined Chern-Simons theory is a one-parameter deformation of the ordinary Chern-Simons theory on Seifert manifolds. It is defined via an index of the theory on N M5 branes, where the corresponding one-parameter deformation is a natural…

High Energy Physics - Theory · Physics 2012-02-14 Mina Aganagic , Shamil Shakirov

We classify the cohomology classes of Lagrangian 4-planes $\P^4$ in a smooth manifold $X$ deformation equivalent to a Hilbert scheme of 4 points on a $K3$ surface, up to the monodromy action. Classically, the cone of effective curves on a…

Algebraic Geometry · Mathematics 2013-08-27 Benjamin Bakker , Andrei Jorza

Let $L$ be a special Lagrangian submanifold of a compact, Calabi-Yau manifold $M$ with boundary lying on the symplectic, codimension 2 submanifold $W$. It is shown how deformations of $L$ which keep the boundary of $L$ confined to $W$ can…

Differential Geometry · Mathematics 2007-05-23 Adrian Butscher

Colored HOMFLY-PT invariant, the generalization of the colored Jones polynomial, is one of the most important quantum invariants of links. This paper is devoted to investigating the basic structures of the colored HOMFLY-PT invariants of…

Geometric Topology · Mathematics 2015-11-17 Qingtao Chen , Kefeng Liu , Pan Peng , Shengmao Zhu

We establish second main theorems for holomorphic curves into a projective subvary $V \subset \mathbb{P}^n(\mathbb{C})$ of dimension $k$, intersecting hypersurfaces in $N$-subgeneral position with respect to $V$ $(N > k)$. Our results…

Complex Variables · Mathematics 2026-05-11 Si Duc Quang , Nguyen Van An , Tran An Hai

We give an exposition of how the Kauffman bracket arises for certain systems of anyons, and do so outside the usual arena of Temperley-Lieb-Jones categories. This is further elucidated through the discussion of the Iwahori-Hecke algebra and…

Mathematical Physics · Physics 2020-08-18 Sachin J. Valera

It is natural to try to place the new polynomial invariants of links in algebraic topology (e.g. to try to interpret them using homology or homotopy groups). However, one can think that these new polynomial invariants are byproducts of a…

Geometric Topology · Mathematics 2007-05-23 Jozef H. Przytycki

We define a HOMFLY version of the category $\text{Rep}_q\text{P}$ of quantum representations of a parabolic subgroup $\text{P}\subseteq\text{GL}_{m+n}$ of block triangular matrices. Alongside this category, we construct functors that…

Quantum Algebra · Mathematics 2026-01-07 Juan Ramón Gómez García

We analyze the Lagrangian and Hamiltonian formulations of the Maxwell-Chern-Simons theory defined on a manifold with boundary for two different sets of boundary equations derived from a variational principle. We pay special attention to the…

High Energy Physics - Theory · Physics 2022-08-05 J. Fernando Barbero G. , Bogar Díaz , Juan Margalef-Bentabol , Eduardo J. S. Villaseñor

The conormal lift of a link $K$ in $\R^3$ is a Legendrian submanifold $\Lambda_K$ in the unit cotangent bundle $U^* \R^3$ of $\R^3$ with contact structure equal to the kernel of the Liouville form. Knot contact homology, a topological link…

Symplectic Geometry · Mathematics 2014-11-11 Tobias Ekholm , John Etnyre , Lenhard Ng , Michael Sullivan

We derive formulas for the classical Chern-Simons invariant of irreducible $SU(n)$-flat connections on negatively curved locally symmetric three-manifolds. We determine the condition for which the theory remains consistent (with basic…

High Energy Physics - Theory · Physics 2016-12-21 Loriano Bonora , Andrey A. Bytsenko , Antonio E. Goncalves

The purpose of this paper is to prove a gluing theorem for a given special Lagrangian submanifold of a Calabi-Yau 3-fold. The proof will be an adaption of the gluing techniques in J-holomorphic curve theory. It is a well known procedure in…

Differential Geometry · Mathematics 2007-05-23 Sema Salur

In this note we present a brief overview of connections between Chern-Simons theory and topological strings. A prominent role in this link has been played by large N dualities and holography. We demystify this by explaining why the Kahler…

Algebraic Geometry · Mathematics 2025-05-16 Cumrun Vafa