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The moduli space ${\mathcal{M}}_{g}$, of genus $g\geq2$ closed Riemann surfaces, is a complex orbifold of dimension $3(g-1)$ which carries a natural real structure i.e. it admits an anti-holomorphic involution $\sigma$. The involution…

Complex Variables · Mathematics 2017-11-13 Antonio F. Costa , Ruben A. Hidalgo

We construct a measure on the moduli space of super Riemann surfaces with Ramond punctures using the super Mumford isomorphism and a super period map.

Algebraic Geometry · Mathematics 2024-10-18 Ron Donagi , Nadia Ott

As a consequence of the Riemann-Roch theorem, a closed Riemann surface $S$ can be described by a non-singular complex projective algebraic curve $C$. A field of definition for $S$ is any subfield $D$ of $\mathbb{C}$ so that we may choose…

Algebraic Geometry · Mathematics 2021-05-04 Sebastián Reyes-Carocca

Within the framework of complex supergeometry and motivated by two-dimensional genus-zero holomorphic N=1 superconformal field theory, we define the moduli space of N=1 genus-zero super-Riemann surfaces with oriented and ordered…

Quantum Algebra · Mathematics 2007-05-23 Katrina D. Barron

We investigate the superconformal index of four-dimensional N=1 superconformal field theories that arise on coincident M5 branes wrapping a holomorphic curve in a local Calabi-Yau three-fold. The structure of the index is very similar to…

High Energy Physics - Theory · Physics 2014-04-09 Christopher Beem , Abhijit Gadde

An odd deformation of a super Riemann surface $\mathcal S$ is a deformation of $\mathcal S$ by variables of odd parity. In this article we study the obstruction theory of these odd deformations $\mathcal X$ of $\mathcal S$. We view…

Algebraic Geometry · Mathematics 2018-08-15 Kowshik Bettadapura

We present a superfield formulation of the chiral de Rham complex (CDR) of Malikov-Schechtman-Vaintrob in the setting of a general smooth manifold, and use it to endow CDR with superconformal structures of geometric origin. Given a…

Quantum Algebra · Mathematics 2014-01-14 David Ben-Zvi , Reimundo Heluani , Matthew Szczesny

In this paper the notion of a superconformal structure on a supermanifold is introduced in an effort to study the superparticle sigma-model. There are, in particular, two main aspects of the sigma-model which are investigated. The first is…

Mathematical Physics · Physics 2015-07-29 Kowshik Bettadapura

The (super) Schottky uniformization of compact (super) Riemann surfaces is briefly reviewed. Deformations of super Riemann surface by gravitinos and Beltrami parameters are recast in terms of super Schottky group cohomology. It is checked…

High Energy Physics - Theory · Physics 2017-01-04 Sam Playle

Non-split almost complex supermanifolds and non-split Riemannian supermanifolds are studied. The first obstacle for a splitting is parametrized by group orbits on an infinite dimensional vector space. Further it is shown that non-split…

Differential Geometry · Mathematics 2015-01-29 Matthias Kalus

We study the superconformally covariant pseudodifferential symbols defined on N=2 super Riemann surfaces. This allows us to construct a primary basis for N=2 super W_KP^(n)-algebras and, by reduction, for N=2 super W_n-algebras.

High Energy Physics - Theory · Physics 2007-05-23 Stephane Gourmelen

An introduction to $N=2$ rigid and local supersymmetry is given. The construction of the actions of vector multiplets is reviewed, defining special K\"ahler manifolds. Symplectic transformations lead to either isometries or symplectic…

High Energy Physics - Theory · Physics 2008-02-03 Antoine Van Proeyen

We consider bordered Riemann surfaces which are biholomorphic to compact Riemann surfaces of genus g with n regions biholomorphic to the disc removed. We define a refined Teichmueller space of such Riemann surfaces and demonstrate that in…

Complex Variables · Mathematics 2012-07-05 David Radnell , Eric Schippers , Wolfgang Staubach

In this paper, we construct a Lagrangian submanifold of the moduli space associated to the fundamental group of a punctured Riemann surface (the space of representations of this fundamental group into a compact connected Lie group). This…

Symplectic Geometry · Mathematics 2008-09-24 Florent Schaffhauser

In this article we consider spherical hypersurfaces in $\mathbb C^2$ with a fixed Reeb vector field as 3-dimensional Sasakian manifolds. We establish the correspondence between three different sets of parameters, namely, those arising from…

Differential Geometry · Mathematics 2024-07-08 Daniel Sykes , Gerd Schmalz , Vladimir Ezhov

The goal of this work is to give new quantitative results about the distribution of semi-arithmetic hyperbolic surfaces in the moduli space of closed hyperbolic surfaces. We show that two coverings of genus $g$ of a fixed arithmetic surface…

Geometric Topology · Mathematics 2024-03-20 Cayo Dória , Nara Paiva

In this paper we find strictly locally convex hypersurfaces in $\mathbb{R}^{n+1}$ with prescribed curvature and boundary. The main result is that if the given data admits a strictly locally convex radial graph as a subsolution, we can find…

Differential Geometry · Mathematics 2015-04-14 Chenyang Su

In this note, I discuss in some detail the dual version of the ribbon graph decomposition of the moduli spaces of Riemann surfaces with boundary and marked points, which I introduced in math.AG/0402015, and used in math.QA/0412149 to…

Geometric Topology · Mathematics 2007-05-23 Kevin J. Costello

In Part I, we develop the notions of a Moebius structure and a conformal Cartan geometry, establish an equivalence between them; we use them in Part II to study submanifolds of conformal manifolds in arbitrary dimension and codimension. We…

Differential Geometry · Mathematics 2010-06-30 Francis E. Burstall , David M. J. Calderbank

We study the geometry of super curves with a chosen supervolume form. We consider the algebra of divergence free vector fields $S(1|N)$ associated to such curves. When $N=2$ its derived algebra, called $S(2)$, defines a special family of…

Representation Theory · Mathematics 2024-02-13 Ricardo Jesús Ramos Castillo