activity
20092023
most citedInstantons on multi-Taub-NUT Spaces I: Asymptotic Form and Index Theorem

14 citations · 24 across the 10 of their papers we have counts for

collaborators

10 papers

math.DG2023

Asymptotics of a Modified Holomorphic Analytic Torsion

Andres Larrain Hubach

We prove a formula for the leading term of the asymptotic expansion of the holomorphic analytic torsion of the Dirac operator modified by the Clifford action of a real three-form.

math.DG2022

Some Modifications of Getzler's Grading technique

Andres Larrain-Hubach

This paper reviews the grading technique developed by Getzler to prove the local index theorem and shows how to adapt it to compute the leading terms of asymptotic expansions of tr…

math.PR2021

A Markov-Modulated (s, S) Inventory System with Repeated Calls and Blocked Demands

James Cordeiro, Ying-Ju Chen, Andres Larrain-Hubach +1

In this article, we consider a continuous review (s, S) inventory system with failures of demand fulfillment (service) modeled as a Markov-modulated retrial queueing system. The in…

math.DG2018

An Application of the Index Theorem for Manifolds with Fibered Boundaries

Andres Larrain-Hubach

We show how the index formula for manifolds with fibered boundaries can be used to compute the index of the Dirac operator on Taub-NUT space twisted by an anti-self-dual generic in…

math.DG2017

Sobolev Maps into Compact Lie Groups and Curvature

Andres Larrain-Hubach, Doug Pickrell

These are notes on seminal work of Freed, and subsequent developments, on the curvature properties of (Sobolev Lie) groups of maps from a Riemannian manifold into a compact Lie gro…

math.DG2016★ 14 cited

Instantons on multi-Taub-NUT Spaces I: Asymptotic Form and Index Theorem

Sergey A. Cherkis, Andres Larrain-Hubach, Mark Stern

We study finite action anti-self-dual Yang-Mills connections on the multi-Taub-NUT space. We establish the curvature and the harmonic spinors decay rates and compute the index of t…

math-ph2013★ 5 cited

Equivariant, string and leading order characteristic classes associated to fibrations

Andres Larrain-Hubach, Yoshiaki Maeda, Steven Rosenberg +1

We construct equivariant, string and leading order characteristic classes and Chern-Simons classes for certain infinite rank bundles associated to fibrations occurring in loop spac…

math.KT2011

K-Theories for Certain Infinite Rank Bundles

Andres Larrain-Hubach

Several authors have recently constructed characteristic classes for classes of infinite rank vector bundles appearing in topology and physics. These include the tangent bundle to…

math.DG2010

Characteristic Classes and Zeroth Order Pseudodifferential Operators

Andrés Larrain-Hubach, Steven Rosenberg, Simon Scott +1

We provide evidence for the conjecture that the Wodzicki-Chern classes vanish for all bundles with the group Z of invertible zeroth order pseudodifferential operators as structure…

math.DG2009★ 5 cited

The order of curvature operators on loop groups

Andres Larrain-Hubach

For loop groups (free and based), we compute the exact order of the curvature operator of the Levi-Civita connection depending on a Sobolev space parameter. This extends results of…