Research Interests

Topology, differential geometry, Lie theory and mathematical physics. More specifically,

  • moduli spaces, character varieties, generalised geometry and vertex algebras,
  • Floer homology, knot theory, gerbes and K-theory,
  • mathematical aspects of quantum field theory, gauge theory and string theory.

Preprints

PDF New Invariants of Involutions from Seiberg-Witten Floer Theory (with David Baraglia), 53 pages
arXiv:2403.00203
PDF Equivariant Index on Toric Contact Manifolds (with Marcos Orseli), 31 pages
arXiv:2306.08811
PDF Brieskorn Spheres, Cyclic Group Actions and the Milnor Conjecture (with David Baraglia), 38 pages
arXiv:2208.05143

Publications

PDF Equivariant Seiberg-Witten Floer Cohomology (with David Baraglia), Algebraic and Geometric Topology, 24 (2024), pp. 493-554
arXiv:2108.06855
Journal link
PDF A Foliated Hitchin-Kobayashi Correspondence (with David Baraglia), Advances in Mathematics, 408 (2022), 108661
arXiv:1802.09699
Journal link
PDF Sign Choices for Orientifolds (with Michael Murray, Richard Szabo and Raymond Vozzo), Communications in Mathematical Physics, 378 (2020), pp. 1843-1873
arXiv:1905.06041
Journal link
PDF Real Bundle Gerbes, Orientifolds and Twisted KR-homology (with Michael Murray, Richard Szabo and Raymond Vozzo), Advances in Theoretical and Mathematical Physics, 23 (2019), pp. 2093-2159
arXiv:1608.06466
Journal link
PDF Arithmetic of Singular Character Varieties and their E-Polynomials (with David Baraglia), Proceedings of the London Mathematical Society, 114 (2017), pp. 293-332
arXiv:1602.06996
Journal link
PDF Moduli Spaces of Contact Instantons (with David Baraglia), Advances in Mathematics, 294 (2016), pp. 562-595
arXiv:1401.5140
Journal link
PDF A Fourier-Mukai Approach to the K-theory of Compact Lie Groups (with David Baraglia), Advances in Mathematics, 269 (2015), pp. 335-345
arXiv:1406.3993
Journal link
PDF Projective Families of Dirac Operators on a Banach Lie Groupoid (with Jouko Mickelsson), Journal of Noncommutative Geometry, 10 (2016), pp. 1-23
arXiv:1404.1754
Journal link
PDF A Geometric Model for Odd Differential K-theory (with Michael Murray, Vincent Schlegel and Raymond Vozzo), Differential Geometry and its Applications, 40 (2015), pp. 123-158
arXiv:1309.2834
Journal link
PDF Transitive Courant Algebroids, String Structures and T-duality (with David Baraglia), Advances in Theoretical and Mathematical Physics, 19 (2015), pp. 613-672
arXiv:1308.5159
Journal link
PDF T-duality of Current Algebras and Their Quantization (with Varghese Mathai), Contemporary Mathematics, American Mathematical Society, 584 (2012), pp. 17-38
arXiv:1203.1709
Journal link
PDF The Faddeev-Mickelsson-Shatashvili Anomaly and Lifting Bundle Gerbes (with Michael Murray, Danny Stevenson and Raymond Vozzo), Communications in Mathematical Physics, 319 2 (2013), pp. 379-393
arXiv:1112.1752
Journal link
PDF The General Caloron Correspondence (with Michael Murray and Raymond Vozzo), Journal of Geometry and Physics, 62 (2012), pp. 224-241
arXiv:1105.0805
Journal link
PDF Calculus Structure on the Lie Conformal Algebra Complex and the Variational Complex (with Alberto De Sole and Victor Kac), Journal of Mathematical Physics, 52 053510 (2011), 35 pages
arXiv:1007.3707
Journal link
PDF Fractional Loop Groups and Twisted K-theory (with Jouko Mickelsson), Communications in Mathematical Physics, 299 3 (2010), pp. 741-763
arXiv:0801.2522
Journal link
PDF Integrability Criterion for Abelian Extensions of Lie Groups, Proceedings of the American Mathematical Society, 138 3 (2010), pp. 4137-4148
arXiv:0611431
Journal link

Editorial Work

String Geometries, Dualities and Topological Matter (eds. with P. Bouwknegt, M. Varghese, H. Bursztyn, D. Baraglia, G.-C. Thiang), Journal of Geometry and Physics, Special Issue, 2018.
Journal link

Collaboration Distances

Erdös number 4 Gelfand number 3 Einstein number 4 Bacon number 6