Johannes Nordström
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E-mail: | j dot nordstrom at bath dot ac dot uk | | Public key |
Phone: | 01225 384479 |
Address: |
Department of Mathematical Sciences
University of Bath
Claverton Down
Bath BA2 7AY |
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I am a reader in the algebra and geometry group
at the
Bath maths department.
Research
Research students: Alge Wallis, Matthew Turner
I am a member of the Simons Collaboration on Special Holonomy in Geometry, Analysis and Physics.
We hosted an LMS South West and South West regional meeting in Bath, including workshops on Geometry and Physics and on
Partially Ordered Materials, 19-21 December 2016.
Journal papers
- Extra-twisted connected sum G2-manifolds,
Ann. Glob. Anal. Geom. 64 (2023)
(AGAG, arXiv)
- with Lorenzo Foscolo and Mark Haskins
Complete non-compact G2-manifolds from asymptotically conical
Calabi-Yau 3-folds, Duke Math. J. 170 (2021), 3323-3416
(DMJ, arXiv)
- with Diarmuid Crowley Exotic G2-manifolds,
Math. Ann. 381 (2021), 29-74
(Math Ann, arXiv)
- with Lorenzo Foscolo and Mark Haskins
Infinitely many new families of complete cohomogeneity one G2-manifolds:
G2 analogues of the Taub-NUT and Eguchi-Hanson spaces,
J. Eur. Math. Soc. 23 (2021), 2153-2220
(arXiv, JEMS)
- with Diarmuid Crowley The rational homotopy type of (n-1)-connected
manifolds of dimension up to 5n-3,
J. Top. 13 (2020), 539-575
(arXiv,
JTop)
- with Grégoire Menet and Henrique Sá Earp
Construction of G2-instantons via twisted connected sums,
Math. Res. Letters 28 (2021), 471-509
(MRL, arXiv)
- with Diarmuid Crowley The classification of 2-connected 7-manifolds,
Proc. London Math. Soc. 119 (2019), 1-54.
(PLMS, arXiv)
- with Diarmuid Crowley New invariants of G2-structures,
Geom. Topol. 19 (2015) 2949-2992
(G&T, arXiv)
- with Mark Haskins and Hans-Joachim Hein Asymptotically cylindrical Calabi-Yau manifolds,
J. Diff. Geom. 101 (2015) 213-265
(JDG,
arXiv)
- with Alessio Corti, Mark Haskins and Tommaso Pacini
G2-manifolds and associative submanifolds from semi-Fano 3-folds,
Duke Math. J. 164 (2015) 1971-2092
(DMJ,
arXiv)
- with Alessio Corti, Mark Haskins and Tommaso Pacini Asymptotically cylindrical Calabi-Yau 3-folds from weak Fano 3-folds,
Geom. Topol. 17 (2013) 1955-2059
(PDF,
G&T,
arXiv)
- Ricci-flat deformations of metrics with exceptional holonomy,
Bull. London Math. Soc. 45 (2013) 1004-1018
(PDF,
BLMS,
arXiv)
-
with Alexei Kovalev Asymptotically cylindrical 7-manifolds of holonomy
G2 with applications to compact irreducible G2-manifolds,
Ann. Global Anal. Geom. 38 (2010) 221-257
(PDF ©
Springer,
arXiv)
- Deformations of glued G2-manifolds, Comm. Anal. Geom.
17 (2009) 481-503
(PDF ©
International Press, arXiv)
- Deformations of asymptotically cylindrical G2-manifolds,
Math. Proc. Camb. Phil. Soc. 145 (2008) 311-348
(PDF © CUP,
MPCPS,
arXiv)
Other
- with Karsten Matthies and Matt Turner
SU(2)2 x U(1)-invariant G2-instantons on the AC limit of
the C7 family
(arXiv)
- with Mark Haskins
Cohomogeneity-one solitons in Laplacian flow: local, smoothly-closing and steady solitons (arXiv)
- with Csaba Nagy
Rational homotopy and simply-connected 8-manifolds
(arXiv)
- with Sebastian Goette
Nu-invariants of extra-twisted connected sums
with an appendix by Don Zagier
(arXiv)
- with Diarmuid Crowley and Sebastian Goette
Distinguishing G2-manifolds, Fields Institute Communications vol. 84,
Springer US, 143-172 (survey,
arXiv)
- with Diarmuid Crowley and Sebastian Goette An analytic invariant of
G2-manifolds (arXiv)
- Thesis (PS,
PDF)
My preprints on the arXiv are collected here.
Talk slides
My Bacon-Erdős number is 8.
Weave your own catenoid from paper strips,
get a helicoid free.
ah, network is slow.
things turn out blocky.
what's clogging up my bandwidth?
I will find out soon.