Sinem Çelik Onaran

Associate Professor

 

Hacettepe University

Department of Mathematics
 Room 254,  Tel: +90 312 780 7895

Fax: +90 312 299 2017
 Email: sonaran(at)hacettepe(dot)edu(dot)tr

 

 

 

Research Interests: Contact Topology, Knot Theory, Lefschetz Fibrations on 4-manifolds.

 

 

Publications:

·         Exceptional Legendrian torus knots, joint with H. Geiges, arXiv:1802.07943.

·         Legendrian lens space surgeries, joint with H. Geiges, Michigan Mathematical J., Vol. 67, No.2, 405-422.

·         Legendrian torus knots in lens spaces, TJM, Vol. 42, No:3, 936-948.

·         On overtwisted contact surgeries, to appear in Bulletin of the Australian Mathematical Society.

·         Non-looseness of non-loose knots, joint with K. L. Baker,  AGT, (2015) Vol. 15, No. 2, 1031-1066.

·         Legendrian rational unknots in lens spaces, joint with H. Geiges,  J. of Symplectic Geometry, (2015),  Vol. 13, No. 1, 17-50.

·         Planar open book decompositions of 3-manifolds, RMJM, (2014) Vol. 44, No. 5, 1621-1630.

·         Invariants of legendrian knots from open book decompositions, IMRN, (2010) Vol. 2010, No. 10, 1831-1859.

·         On sections of genus two Lefschetz fibrations, Pacific Journal of Mathematics, (2010) Vol. 248, No. 1, 203-216.

·         Legendrian knots and open book decompositions, Ph.D Thesis, July 2009.

·         Contact surgery on contact 3-manifolds, M.S Thesis, June 2006.

 

 

Talks and others:                

·         Contact surgeries on contact 3-manifolds, Women in Geometry and Topology, ETH Zurich, June 2017.

·         Nonloose transverse knots, Symplectic Techniques in Topology and Dynamics Workshop, University of Cologne, August 2015.

·         Invariants of knots in overtwisted contact structures, Redbud Topology Conference, Oklahoma State University, April 2015.

·         Invariants of Legendrian knots, Lorentz Center, Leiden, July 2014.

·         Invariants of Legendrian knots, Institute for Advanced Study, Princeton May 2012.

·         Legendrian knots and contact structures, Fields Institute, Toronto May 2011.

·         Knots, contact structures and open book decompositions, McMaster University 2010, Buffalo University  2011.

·         Legendrian knots and open book decompositions, MSRI January 2010.

·         Invariants of Legendrian knots from open book decompositions, Georgia Tech, UGA, Koç University, Cologne 2009.

·         Poster, MSRI August 2009.

 

Teaching:

·         Spring 2018 : MAT236-06, MAT124-11, SEC 154 Art & Math

·         Past Teaching

 

***Geometry/ Topology Days, September 23, October 31, 2016 at Atılım University, December 5, 2016 at METU, Ankara

*** Workshop on Contact Topology, October 25, 2014, Hacettepe University, Ankara

*** Workshop on Low Dimensional Topology, March 1, 2013, Hacettepe University, Ankara

*** I was one of the organizers of İstanbul Contact Geometry Topology Workshop, June 7-June 10 2010, İstanbul. The workshop held in İstanbul Center for Mathematical Sciences (IMBM) in Boğaziçi University                

 

My CV

About Me

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