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Books, Lectures, Talks and Theses

2017

Nikolay Kozyrev, Sergey Krivonos, Olaf Lechtenfeld, Armen Nersessian and Anton Sutulin:
Curved WDVV equation and supersymmetric mechanics
(Talk by S.K. at the XVII International Conference ``Integrable Systems and Quantum Symmetries'', Prague, Czech Republic, 06-10 June 2017;
Proceedings:)

2016

Francisco Correa and Olaf Lechtenfeld:
Calogero, spherically reduced and PT-deformed
(Talk by O.L. at the Ringberg Meeting on Geometry and Physics, 20-25 November 2016; contribution to the proceedings of the School and Workshop on Elementary Particle Physics and Gravity, Corfu Summer Institute on Elementary Particles and Gravity, Corfu, Greece, 31 August- 23 September 2016;
Proceedings: PoS Corfu2016 (2016) 095)

Francisco Correa and Olaf Lechtenfeld:
The tetrahexahedric angular Calogero model
(Talk by O.L. at ISQS-24, Prague, 14-18 June 2016;
Proceedings: J. Phys.: Conf. Series 804 (2017) 012011)

Francisco Correa and Olaf Lechtenfeld:
The tetrahexahedric Calogero model
arXiv:1604.06457 [hep-th]
(Talk by O.L. at JINR workshop ``Supersymmetries and Quantum Symmetries'', Dubna, Russia, 03-08 August, 2015;
Proceedings: Physics of Particles and Nuclei Letters 14 (2017) 304-311)

2015

Andreas Deser:
Star products on graded manifolds and α'-corrections to double field theory
(Proceedings of XXXIV Workshop on Geometric Methods in Physics, Bialowieza)

2014

Konstantinos Anagnostopoulos, Olaf Lechtenfeld, Dieter Lüst, Hikaru Kawai, Jun Nishimura, Harold Steinacker, Richard Szabo, Satoshi Watamura, George Zoupanos (eds.):
Workshop on Noncommutative Field Theory and Gravity (CORFU2013-NC)
(Part of 13th Hellenic School and Workshops on Elementary Particle Physics and Gravity;
Proceedings of the Workshop in Corfu, Greece, 08-15 September 2013;
Fortsch. Phys. 62 (2014) issue 9-10, pp. 703-897)

Athanasios Chatzistavrakidis and Fridrik Freyr Gautason:
U-dual branes and mixed symmetry tensor fields
arXiv:1404.7635 [hep-th]
(Talk by A.C. at the Workshop on Noncommutative Field Theory and Gravity, Corfu Summer Institute on Elementary Particles and Physics, Corfu, Greece, 08-15 September 2013;
Fortschr. Phys. 62 (2014) 743-748)

Susha L. Parameswaran and Ivonne Zavala:
Worldsheet instantons and coupling selection rules in heterotic orbifolds
arXiv:1401.6162 [hep-th]
(Talk by S.L.P. at JINR workshop ``Supersymmetries and Quantum Symmetries'', Dubna, Russia, 29 July - 03 August 2013;
Proceedings: Physics of Particles and Nuclei 11 (2014) 981-983)

2013

Olaf Lechtenfeld:
On the Gribov problem in Yang-Mills theory
arXiv:1312.6308 [hep-th]
(Talk at JINR workshop ``Supersymmetries and Quantum Symmetries'', Dubna, Russia, 29 July - 03 August 2013;
Proceedings: Physics of Particles and Nuclei Letters 11 (2014) 830-835)

Evgeny Ivanov, Olaf Lechtenfeld and Boris Zupnik:
New approach to duality-invariant nonlinear electrodynamics
arXiv:1310.5362 [hep-th]
(Talk by E.I. at ISQS-21, Prague, 11-16 June 2013,
Proceedings: J. Phys.: Conference Series 474 (2013) 012023)

Athanasios Chatzistavrakidis and Larisa Jonke:
Generalized fluxes in matrix compactifications
arXiv:1305.1864 [hep-th]
(Talk by A.C. at the School and Workshop on Elementary Particle Physics and Gravity, Corfu Summer Institute on Elementary Particles and Physics, Corfu, Greece, 08-27 September 2012;
Proceedings: PoS Corfu2012 (2013) 095)

2012

Sergey Fedoruk, Evgeny Ivanov and Olaf Lechtenfeld:
Gauged N=4 supersymmetric mechanics with spin supermultiplets
(Talk by S.F. at the XXIX International Colloquium on Group-Theoretical Methods in Physics, Tianjin, China, 20-26 August, 2012;
Proceedings: World Scientific)

Olaf Lechtenfeld:
Instantons and Chern-Simons flows in six and seven dimensions
(Talk at the Conference on Quantum Field Theory and Gravity `QFTG'12', Tomsk, Russia, 31 July - 04 August, 2012;
Proceedings: Tomsk State Pedagogical University Bulletin 128 (2012) 103-108)

Nikolay Kozyrev, Sergey Krivonos and Olaf Lechtenfeld:
N=2 supersymmetric S2->CP3->S4 fibration viewed as superparticle mechanics
arXiv:1210.4587 [hep-th]
(Talk by S.K. at ISQS-20, Prague, 17-23 June 2012,
Proceedings: J. Phys.: Conference Series 411 (2013) 012019)

Magnus Goffeng and Olaf Lechtenfeld:
Noncommutative deformation of the Ward metric
arXiv:1205.0020 [hep-th]
(Talk by O.L. at the Workshop on Noncommutative Field Theory and Gravity, Corfu Summer Institute on Elementary Particles and Physics, Corfu, Greece, 04-18 September 2011;
Proceedings: PoS CORFU2011 (2011) 062)

Tigran Hakobyan, Olaf Lechtenfeld, Armen Nersessian, Armen Saghatelian and Vahagn Yeghikyan
Action-angle variables and novel superintegrable systems
(Talk by A.N. at JINR workshop ``Supersymmetries and Quantum Symmetries'', Dubna, Russia, 18-23 July, 2011;
Proceedings: Physics of Particles and Nuclei 43 (2012) 577-582)

Olaf Lechtenfeld:
Instantons and Chern-Simons flows in 6,7 and 8 dimensions
arXiv:1201.6390 [hep-th]
(Talk at JINR workshop ``Supersymmetries and Quantum Symmetries'', Dubna, Russia, 18-23 July, 2011;
Proceedings: Physics of Particles and Nuclei 43 (2012) 569-576)

Christoph Nölle:
Heterotic supergravity on manifolds with Killing spinors
ITP-UH-01/12
(PhD thesis)

2011

2010

André Fischer:
Matrix-model formulation of LS-covariant noncommutative quantum field theories on Minkowski spacetime
ITP-UH-20/10
(PhD thesis)

Kirsten Vogeler:
Conformal ghosts on the sphere
ITP-UH-19/10
(PhD thesis)

Theodora Ioannidou and Olaf Lechtenfeld:
Noncommutative baby skyrmions
(Talk by T.I. at the Workshop on Noncommutative Field Theory and Gravity, Corfu Summer Institute on Elementary Particles and Physics, Corfu, Greece, 08-12 September 2010;
Proceedings: PoS CNCFG2010 (2010) 020)

Olaf Lechtenfeld and Marco Maceda:
The Kähler potential of the non-commutative CP1 model
(Talk by M.M. at the IV Mexican Meeting on Experimental and Theoretical Physics: Symposium on Gravitation BEC's Phenomenology, Mexico City, Mexico, July 2010;
AIP Conference Proceedings Vol. 1318 (2010) 187-195)

Johannes Brödel:
Alternative approaches to maximally supersymmetric field theories
ITP-UH-13/10
(PhD thesis)

Olaf Lechtenfeld and Marco Maceda:
On the non-commutative CP1 model
(Talk by M.M. at the VIII School of the Gravitation and Mathematical Physics, Playa del Carmen, Quintana Roo, Mexico, December 2009;
AIP Conference Proceedings Vol. 1256 (2010) 208-212)

André Fischer and Richard J. Szabo:
UV/IR duality in noncommutative quantum field theory
arXiv:1001.3776 [hep-th]
(Talk by R.J.S. at three workshops/schools in 2009, Gen. Relativ. Gravit. 43 (2010) 2509-2522, DOI: 10.1007/s10714-010-1046-9)

Sergey Fedoruk, Evgeny Ivanov and Olaf Lechtenfeld:
New super Calogero models and OSp(4|2) superconformal mechanics
arXiv:1001.2536 [hep-th]
(Talk by E.I. at the XIII International Conference "Symmetry Methods in Physics", Dubna, Russia, 06-09 July 2009)

2009

2008

Olaf Lechtenfeld:
N=4 mechanics, WDVV equations and polytopes
arXiv:0811.0021 [hep-th]
(Talk at the XVII International Colloquium on Integrable Systems and Quantum Symmetries in Prague, Czech Republic, 19-21 June 2008, and at the XXVII International Colloquium on Group Theoretical Methods in Physics in Yerevan, Armenia, 13-19 August 2008)

Olaf Lechtenfeld:
WDVV solutions from orthocentric polytopes and Veselov systems
arXiv:0804.3245 [hep-th]
(in: Problems of Modern Theoretical Physics, ed. V. Epp, Tomsk State Pedagogical University Press, 2008, pp. 256-265)

Hendrik Adorf:
Boundary conformal field theory analysis of the H3+ model
ITP-UH-08/08
(PhD thesis)

2007

Olaf Lechtenfeld:
Noncommutative solitons
arXiv:0710.2074 [hep-th]
(Talk at the "Third Mexican Meeting on Mathematical and Experimental Physics'' at El Colegio Nacional, Mexico City, Mexico, 14-17 September 2007;
AIP Conference Proceedings Vol. 977 (2008) 37-51)

Olaf Lechtenfeld:
Supersymmetric noncommutative solitons
arXiv:0707.3522 [hep-th]
(Talk at "Noncommutative Spacetime Geometries" in Alessandria, Italy, 26-31 March 2007, and "Noncommutative Geometry and Physics" in Orsay, France, 23-27 April 2007;
Journal of Physics: Conference Series 103 (2008) 012016)

Olaf Lechtenfeld, Alexander D. Popov and Richard J. Szabo:
Quiver gauge theory and noncommutative vortices
arXiv:0706.0979 [hep-th]
(Talk by O.L. at the 21st Nishinomiya-Yukawa Memorial Symposium in Nishinomiya/Kyoto, Japan, 11-15 November 2006;
Proceedings: Prog. Theor. Phys. Suppl. 171 (2007) 258-268)

Stefan Petersen:
Abelian solitons in the noncommutative Ward model
(Talk by S.P. at the 21st Nishinomiya-Yukawa Memorial Symposium in Nishinomiya/Kyoto, Japan, 11-15 November 2006;
Proceedings: Prog. Theor. Phys. Suppl. 171 (2007) 223-227)

2006

Stefan Petersen:
Aspects of solitons in noncommutative field theories -- the modified Ward model
ITP-UH-27/06
(PhD thesis)

Leonardo Quevedo:
Non(anti)commutative gauge theories in harmonic superspace
ITP-UH-19/06
(PhD thesis)

Martin Wolf:
On supertwistor geometry and integrability in super gauge theory
hep-th/0611013
(PhD thesis)

Olaf Lechtenfeld:
Noncommutative solitons
hep-th/0605034
(150 minutes of lectures given 01-04 November 2005 at the International Sendai-Beijing Joint Workshop on Noncommutative Geometry and Physics;
Proceedings: pp. 175-200, World Scientific, 2007)

2005

Christian Sämann:
Aspects of twistor geometry and supersymmetric field theories within superstring theory
hep-th/0603098
(PhD thesis)

Alexandra De Castro, Evgeny Ivanov, Olaf Lechtenfeld and Leonardo Quevedo:
Non-singlet Q-deformations of N=2 gauge theories
hep-th/0512275
(Talk by A.D.C. at JINR workshop ``Supersymmetries and Quantum Symmetries'', Dubna, Russia, 27-31 July 2005;
Proceedings: SQS '05, pp. 116-121)

Christian Sämann:
The mini-superambitwistor space
hep-th/0511251
(Talk at JINR workshop ``Supersymmetries and Quantum Symmetries'', Dubna, Russia, 27-31 July 2005;
Proceedings: SQS '05, pp. 407-414)

Martin Wolf:
Twistors and aspects of integrability of self-dual SYM theory
hep-th/0511230
(Talk at JINR workshop ``Supersymmetries and Quantum Symmetries'', Dubna, Russia, 27-31 July 2005;
Proceedings: SQS '05, pp. 448-455)

Olaf Lechtenfeld:
Integrable noncommutative sine-Gordon model
ps file
(Talk at JINR workshop ``Supersymmetries and Quantum Symmetries'', Dubna, Russia, 27-31 July 2005;
Proceedings: SQS '05, pp. 238-244)

2004

Michael Flohr and Marco Krohn:
A note on four-point functions in logarithmic conformal field theories
hep-th/0501144 (Talk by M.F. at the 37th International Symposium Ahrenshoop on the Theory of Elementary Particles, Berlin-Schmöckwitz, 23-27 August 2004:
Fortsch. Phys. 53 (2005) 456-462)

Olaf Lechtenfeld:
Noncommutative sine-Gordon model
hep-th/0409108
(Talk at the XIIIth International Colloquium Integrable Systems and Quantum Groups, Prague, 17-19 June 2004, and at the 37th International Symposium Ahrenshoop on the Theory of Elementary Particles, Berlin-Schmöckwitz, 23-27 August 2004:
Czech. J. Phys. 54 (2004) 1351-1357; Fortsch. Phys. 53 (2005) 500-505)

Michael Flohr:
Logarithmic conformal field theory - or - how to compute a torus amplitude on the sphere
hep-th/0407003
(Contribution to the Ian Kogan Memorial Volume from Fields to Strings: Circumnavigating Theoretical Physics)

Evgeny Ivanov, Olaf Lechtenfeld and Boris Zupnik:
Non-anticommutative N=(1,1) Euclidean superspace
hep-th/0402062
(Talk by E.I. at the workshop ``Supersymmetries and Quantum Symmetries'', Dubna, Russia, 24-29 July 2003;
Proceedings: SQS '03, pp. )

2003

Olaf Lechtenfeld:
Noncommutative instantons and solitons
hep-th/0401158
(Talk at the 27th Johns Hopkins Workshop on Current Problems in Particle Theory, Göteborg, Sweden, 24-26 August 2003, and at the 36th International Symposium Ahrenshoop on the Theory of Elementary Particles, Berlin-Schmöckwitz, Germany, 26-30 August 2003:
short version: Fortsch. Phys. 52 (2004) 596-605; long version: JHEP PRHEP-jhw2003/017)

Michael Flohr and Marco Krohn:
Operator product expansion and zero mode structure in logarithmic cft
hep-th/0312158
(Talk by M.F. at the 36th International Symposium Ahrenshoop on the Theory of Elementary Particles, Berlin-Schmöckwitz, Germany, 26-30 August 2003:
Fortsch. Phys. 52 (2004) 503-508)

Sebastian Uhlmann:
String field theory: methods and solutions
ITP-UH-07/03
(PhD Thesis)

2002

Alexander Kling, Olaf Lechtenfeld, Alexander D. Popov and Sebastian Uhlmann:
Solving string field equations: new uses for old tools
hep-th/0212335
(Talk by O.L. at the 35th International Symposium Ahrenshoop on the Theory of Elementary Particles, Berlin-Schmöckwitz, Germany, 26-30 August 2002:
Fortsch. Phys. 51 (2003) 775-780)

Bernd Spendig:
Der N=2 String auf nicht trivialen Hintergründen
ITP-UH-19/02
(PhD Thesis)

2001

Michael Flohr and Shahin Rouhani (eds.):
Logarithmic conformal field theory and its applications
(Proceedings to the School and Workshop on Logarithmic Conformal Field Theory, Tehran, Iran, 4-18 Sep 2001;
Int. J. Mod. Phys. A 18 (2003) 4497-4796)

Michael Flohr:
Bits and pieces in logarithmic conformal field theory
hep-th/0111228
(Lecture notes for the School and Workshop on Logarithmic Conformal Field Theory, Tehran, Iran, 04-18 Sep 2001;
Int. J. Mod. Phys. A 18 (2003) 4497-4593)

Helge Dennhardt:
Spinning p-Branes
ITP-UH-27/01
(PhD Thesis)

Bernd Niemeyer:
N=2 Strings und selbstduale Feldtheorien
ITP-UH-06/01
(PhD Thesis)

2000

Michael Flohr:
Null vectors in logarithmic conformal field theory
hep-th/0009137
(Proceedings of the IV. Annual European TMR Conference on Integrability, Non-perturbative Effects and Symmetry in Quantum Field Theory, September 2000, Paris)

Tatiana A. Ivanova and Alexander D. Popov:
Cech, Dolbeault and de Rham cohomologies in Chern-Simons and BF theories
hep-th/0101150
(Proceedings of the XXIII Intern. Colloquium on Group Theoretical Methods in Physics, August 2000, Dubna)

1999

Olaf Lechtenfeld, Jan Louis, Dieter Lüst and Hermann Nicolai (eds.):
Strings '99
(Proceedings of the Conference in Potsdam, Germany, 19-24 July 1999;
Class. Quantum Grav. 17 (2000) 907-1316)

Olaf Lechtenfeld:
Mathematics and physics of N=2 strings
hep-th/9912281
(Talk at JINR workshop ``Supersymmetries and Quantum Symmetries'', Dubna, Russia, 27-31 July 1999;
Proceedings: SQS '99, pp. 79-89)

Klaus Jünemann:
Symmetrien des N=2 Strings
ITP-UH-02/99
(PhD Thesis)

1998

Sergei V. Ketov:
AdS/CFT correspondence and coincident D-6-branes
hep-th/9812079 (Fortsch. Phys. 48 (2000) 147-150)

Sergei V. Ketov:
Making manifest the symmetry enhancement for coinciding BPS branes
hep-th/9806130
(Talk presented at the International Conference STRINGS'98 in Santa Barbara, USA, 22-26 June 1998, and the International Conference ``Problems of Quantum Field Theory'' in Dubna, Russia, 13-17 July 1998)

1997

Chandrashekar Devchand and Olaf Lechtenfeld:
On the self-dual geometry of N=2 strings
hep-th/9801117
(Talk by O.L. at the 31st International Ahrenshoop Symposium on the Theory of Elementary Particles in Buckow, Germany, 2-6 September 1997, at the International Conference ``Methods in Field Theory'' in Stara Lesna, Slovakia, 22-26 September 1997, and the String Workshop in Wittenberg, Germany, 14-15 November 1997)

Sergei Ketov:
The hypermultiplet low-energy effective action, N=2 supersymmetry breaking and confinement
hep-th/9712152
(Talk at the 31st International Ahrenshoop Symposium on the Theory of Elementrary Particles in Buckow, Germany, 2-6 September 1997, and the String Workshop in Wittenberg, Germany, 14-15 November 1997)

Sergei Ketov:
Zur Theorie des Confinement
ITP-UH-30/97 (auf Deutsch, Vortrag im Physikalischen Kolloquium an der Uni-Hannover am 26.11.1997)

Sergei Ketov:
Do the critical (2,2) strings know about a supergravity in 2+10 dimensions ?
hep-th/9710086
(Talk at the XII International Congress of Mathematical Physics, 13-19 July, 1997, in Brisbane, Australia, and the 2nd International Conference on Quantum Field Theory and Gravity, July 29 - August 2, 1997, in Tomsk, Russia)

Peter Adamietz:
Kollektive Feldtheorie und Momentenmethode in Matrixmodellen
ITP-UH-14/97
(PhD Thesis)

1996

Sergei Ketov:
Self-duality and F theory
hep-th/9612171
(Talk at the 4th Nordic Meeting `Supersymmetric Field and String Theories', Göteborg, September 1996, and at the `mitteldeutsche' Workshop, Wittenberg, November 1996)

Sergei V. Ketov:
Solitons, monopoles and duality from Sine-Gordon to Seiberg-Witten
hep-th/9611209
(Review, unpublished)

Jan Bischoff:
Moduli und Amplituden des N=2 Strings
ITP-UH-14/96
(PhD Thesis)

Olaf Lechtenfeld:
The self-dual critical N=2 string
hep-th/9607106
(Talk at X Int. Conf. `Problems of Quantum Field Theory', Alushta, Crimea, May 1996:
p.348, Dubna preprint JINR E2-96-369)

Sergei Ketov:
From N=2 strings to F&M theory
hep-th/9606142
(Talk at the Int'l Workshop `Integrable Models and Strings', Garbsen, Germany, June 1996:
Nucl. Phys. B (Proc. Suppl.) 52A (1997) 335)

Gernot Akemann:
Phasenübergänge in Matrixmodellen
ITP-UH-02/96
(PhD Thesis)

1995

Sergei V. Ketov:
Conformal field theory
(monograph, 486 p., World Scientific, Singapore, 1995)

Jan C. Plefka:
Supersymmetric generalizations of matrix models
hep-th/960104
(PhD Thesis, DESY 95-234)

Olaf Lechtenfeld:
Integration measure and spectral flow in the critical N=2 string
hep-th/9512189
(Talk at 29th Int. Ahrenshoop Symposium on Elem. Particle Theory, Buckow, Germany, 1995:
Nucl. Phys. B (Proc. Suppl.) 49 (1996) 51)

Sergei V. Ketov:
Unitary representations of exceptional N=7 and N=8 superconformal algebras in terms of free fields
ITP-UH-26/95
(Talk at 29th Int. Ahrenshoop Symposium on Elem. Particle Theory, Buckow, Germany, 1995:
Nucl. Phys. B (Proc. Suppl.) 49 (1996) 156)

Sergei V. Ketov:
N=2 string loops and spectral flow
hep-th/9510005
(Talk at Int. Workshop on Strings, ICTP, Trieste, Italy, 1995)

Sergei V. Ketov:
On N=4 strings
(Talk at Int. Conf. "Strings '95", USC, Los Angeles, USA, 1995:
p.285, Proceedings, World Scientific, 1996)

Olaf Lechtenfeld:
On the BRST cohomology of N=2 strings
hept-th/9508100
(Talk at Int. Conf. "Strings '95", USC, Los Angeles, USA, 1995:
p.309, Proceedings, World Scientific, 1996)

1994

Olaf Lechtenfeld:
From N=2 fermionic strings to superstrings?
hep-th/9412242
(Talk at 28th Int. Ahrenshoop Symp. on Elem. Particle Theory, Wendisch-Rietz, Germany, 1994:
p.16, DESY preprint 95-027)

Sergei V. Ketov and Olaf Lechtenfeld:
Twisting and BRST cohomology of the N=2 string
(Talk by S.V.K. at the 20th Yamada International Colloquium On Group Theoretical Methods In Physics, July 1994, Toyonaka, Japan:
p.272, Proceedings, World Scientific, 1995)

1993

Olaf Lechtenfeld:
Collective field theory for D=0 matrix models
hep-th/9312124
(Talk at 27th Int. Ahrenshoop Symp. on Elem. Particle Theory, Wendisch-Rietz, Germany, 1993:
p.32, DESY preprint 94-053)