**Date and place of birth:** 01.06.1957 Enina, Bulgaria.

**Spoken languages:** English, Russian.

**Permanent address:**

Professor of Mathematics,

University of Sofia 'St. Kliment Ohridski'

Faculty of Mathematics and Informatics

James Bourchier Blvd. 5, 1164 Sofia, Bulgaria

tel. +359 2 8161780

fax: +359 2 8687180

e-mail: ivanovsp@fmi.uni-sofia.bg

**Education:**

- Dr.Sci. (Doctor of Mathematical Sciences), University of Sofia 'St.
Kliment Ohridski', 2006

- Ph.D. University of Sofia 'St. Kliment Ohridski', 1987

- Ph.D. Thesis: Linear connections on a smooth manifold with structures

- Ph.D. Advisor: Professor George Ganchev

- M.S. Sofia University 'St. Kliment Ohridski', 1982

- B.S. Sofia University 'St. Kliment Ohridski', 1980

**Research Interests:**

Riemannian and complex differential geometry, Hermitian surfaces
and holomorphic vector bundles, Almost Kaehler 4-manifolds,
Twistor spaces, Almost Hermitian geometry, Differential Geometry
of manifolds with Exceptional holonomy, parallel spinors and Dirac
operators, Harmonic maps, Integrable Hamiltonian systems,
Stackel systems and separation of variables, String theory,
Connections with exceptional holonomy, Quaternionic geometry and
quaternionic contact spaces, Quaternionic contact Yamabe problems

**Teaching Experience:**

Professor of Matematics, Department of Geometry, University of Sofia,
Bulgaria - undergraduate courses: linear algebra, analytical
geometry, differential geometry; graduate courses for Master
degree students: Bochner technics and vanishing theorems,
Spin-c geometry and Dirac operators, Saiberg-Witten theory,
1988-present.

** Ph.D. student:**

- Stefan Savov, 2015-2018.

- Danail Stoyanov, 2015-2018.

**Supervised 14 Masters Dissertations and 5 Ph.D. Theses:**

- Irina Petrova, "Riemannian manifolds with pointwise constant
curvature eigenvalues", 1997.

- Bogdan Alexandrov "Dirac operators on hermitian manifolds and
vanishing theorems", 1999.

- Ivan Minchev "Differential geometry of metric connections with
torsion", 2006.

- Simeon Zamkovoy "Differential geometry of pseudo Riemannian
manifold with additional structures", 2006.

- Alexander Petkov "Riemannian and sub-Riemannian manifolds with strucutures, 2014"

** Post-docs:**

- Dr. Elias Zafiris - 2004.

**Main Grants:**

- Contractor on the Sofia/Bucarest part of the EU network EDGE under
the RTN program (2000-2004).

- Senior Associate to the Abdus Salam ICTP, Trieste, 2003-2008.

- The Yamabe problem on the Quaternionic sphere - Contract with the
National Academies USA, 2005-2007.

- Max-Plank-Institut of Mathematik, Bonn, 1.02.2007-31.07.2007.

- Contract"Idei", DO
02-257/18.12.2008 with the NSF of Bulgaria.

- Visiting Professor at the University of Pennsylvania, Philadelphia, September-December, 2009.

- Contract``Idei", DID 02-39/21.12.2009 with the NSF of Bulgaria.

- Contract DFNI I02/4/12.12.2014

- Visiting Professor at the University of Pennsylvania, Philadelphia, January-May, 2015.

**Editorships:**

Annals of Global Analysis and Geometry (2001-).

**Selected Visiting Professorships:**

University of Oregon, USA - 1 week in March, 1999.

ICTP, Trieste, Italy - September-December, 1999, April-June, 2000, September-December, 2001,
September-December, 2003, September-November, 2006, September-November 2008.

Humboldt University, Berlin, Germany - September - December, 2000, June-July, 2005.

University of California at Riverside, USA - October - November,
2002, December, 2004, February, 2006, January, 2007.

Dipartimento di matematica universita
di Roma "La sapienza", Roma, Italy- May, 2004.

Centro di ricerca matematica 'Ennio
De Giorgi', Differential Geometry and Topology 2004, September,
2004.

University of Pennsylvania, Philadelphia, USA - November, 2004.

Technische University, Berlin, November-December, 2006.

University of Bilbao, Spain - June, 2008, June 2009, June 2010, June 2011, June 2012,
June 2013, June 2014, September 2015.

Visiting Professor at the University of Pennsylvania, Philadelphia, September-December, 2009.

Visiting
University of Zaragoza, Spain - December 2009, May 2014.

Visiting Masarik
University, Brno, Chech Republic, September, 2014.

Visiting
University of Marburg, Germany, October, 2014.

Visiting Professor at the University of Pennsylvania, Philadelphia, January-May, 2015.

** Invited lectures in recent international meeting:**

- Odense EDGE-Workshop, April 19th-22nd 2001
http://edge.imada.sdu.dk/Odense/timetable.php3

- EDGE-EAGER Workshop on "New Interfaces between Geometry and Physics", Miraflores, Madrid, 31/5/-6/6/2001.

- LMS Durham Simposium on Special Structures in Differential Geometry, July 30-August 9, 2001
http://www.imada.sdu.dk/~swann/Durham/

- Conference 'Geometry of low dimensional manifolds and special geometries',
CIRM., Luminy, France, June 3-June 7, 2002.

- Torino Workshop on 'New perspectives on Holonomy
and Submanifolds', Torino, 23-24 April 2004.

- XIV Fall
Workshop on Geometry and Physics September 14-16, 2005, Bilbao
http://www.ehu.es/wgp2005

- 77th "Rencontre entre Physiciens Theoriciens et Mathematiciens"
on "Pseudo-Riemannian Geometry and Supersymmetry", Strasbourg
22nd-24th September 2005
http://www-irma.u-strasbg.fr/irma/seminaires/autres/RCP2005sept.shtml

- Workshop "Quaternionic structures in algebraic geometry",University of Glasgow, Glasgow,
November 17-18, 2007
http://maths.gla.ac.uk/~mv/Q/QSAG.html

- International Workshop on Geometry and Physics: "Special Metrics and Supersymmetry",
29th - 31st May 2008, Bilbao, Spain,
http://www.mat.csic.es/webpages/moduli2008/upv

- Workshop on "Holonomy Groups and Applications in String Theory" at University of
Hamburg, July 14 -18, 2008,
http://www.math.uni-hamburg.de/home/leistner/workshop08/workshop08.html

- Mini-workshop: Vector Distributions and sub-Riemannian Systems
30 March, 2011 - 2 April, 2011, Warsaw
http://bcc.impan.pl/11VDSR/

- Workshop on CR, Pseudohermitian and Sasakian Geometry - Neuchatel, 3-5 May 2011

- Geometric structures on complex manifolds,
3-7 October 2011, Laboratory of Algebraic Geometry, Steklov Institute,
Moscow
http://bogomolov-lab.ru/GS/index.html

- Differential geometry days in honour of Luis A. Cordero)
June 27 - 29, 2012, Santiago de Compostela, Spain,
http://xtsunxet.usc.es/cordero2012/

- Workshop "Symmetries in Differential Geometry and
Mathematical Physics", (Luxembourg, 3-6 September 2012).

- First Joint International Meeting RSME-SCM-SEMA-SIMAI-UMI,
Special Session “Symplectic and Special Geometries”, University
of the Basque Country, Bilbao, Spain, June 30 – July 04 2014.
http://www.ehu.es/en/web/fjim2014/symplectic-geometry-and-special-metrics

- International Conference "Mathematics Days in Sofia" July
7-10, 2014, Sofia, Bulgaria;
http://www.math.bas.bg/mds2014/

**Lectures in recent seminars:**

- Geometry and Topology seminar, University of Maryland,
USA - April, 1994 and April, 1999

- Differential Geometry seminar, Michigan State University,
USA - April, 1994 and May, 1999

- Geometry seminar, University of California at Irvine,
USA - April, 1999.

- Geometry seminar, University of California at Riverside, USA - April, 1999

- Differential Geometry seminar, University of Pennsylvania, USA - March, 1999

- Geometry seminar, Washington University at St. Louis, USA - April, 1999

- Geometry seminar, Humboldt University, Berlin, Germany - June, 1999

- Geometry seminar, Technical University, Berlin, Germany - June, 1999

- Seminario di Topologia Algebrica e Differenziale, Dip. matematica universita di Roma "La Sapienza", Roma-November, 1999

- Mathematics seminar, University of Cagliari, Cagliary, Italy - November, 1999.

- Mathematics Seminar at the Abdus Salam ICTP, Italy - November, 1999

- Mathematics Seminar at the Abdus Salam ICTP, Italy - June, 2000.

- Geometry seminar, Humboldt University, Berlin, Germany - October, 2000.

- Mathematics Seminar at the Abdus Salam ICTP, Italy - November, 2001.

- Seminario di Topologia Algebrica e Differenziale,
Dip. di matematica universitra di Roma "La Sapienza", Roma,-April, 2002.

- Geometry seminar, University of
California at Riverside, USA - October, 2002.

- Mathematics Colloquium, Florida International University, USA -
November 2002.

- Math./Physics seminar, University of
Pennsylvania, USA - December, 2002.

- Algebraic Geometry Seminar at the Abdus Salam ICTP, Italy - November,
2003.

- Seminario di Topologia Algebrica e
Differenziale, Dip. di matematica universita di Roma "La Sapienza",
Roma, April, 2004.

- Math/Phys seminar King's College, University
of London, London, December 2004.

- Geometry seminar, Humboldt University, Berlin, Germany - December,
2005.

- Workshop "Special Geometries in Mathematical Physics",
March 13-18, 2006, K\"uhlungsborn.

- Algebraic Geometry
Seminar at the Abdus Salam ICTP, Italy - November,
2006.

- Geometry seminar, Technische University,
Berlin, Germany - December, 2006.

- Geometry seminar, Humboldt University,
Berlin, Germany - December, 2006.

- Geometry seminar, University of Koeln, Koeln, Germany - April, 2007.

- Geometry seminar, University of Cambridge, Cambridge, UK - May, 2007.

- Geometry seminar, Humboldt University,
Berlin, Germany - June, 2007.

- Mathematics Oberseminar, Max-Plank Institut of Mathematics, Bonn, Germany - July, 2007.

- Mathematics Oberseminar, University of Koeln, Koeln, Germany - July, 2007.

- Mathematics seminar, University of Bilbao, Bilbao, Spain - December 2007.

- Mathematics Seminar at the Abdus Salam ICTP, Italy - October 2008.

- Mathematics Seminar at the University of Bari, Italy -October 2008.

- Mathematics Seminar at the University of Potenza, Italy - October 2008.

- Colloquia at the Department of mathematics and statistics,
University of New Mexico, Albuquerque, USA - November, 2009,

- Geometry Seminar at the University of Marburg, Germany,
January, 2012.

- Geometry Seminar at the Masarik University,
Brno, Chech Republic, September, 2014,

- Geometry Seminar at the University of Marburg, Germany, October, 2014,

- String Theory Seminar,
Institut of Theoretical Physiscs-Hannover, Germany, June, 2015.