Sinem Çelik Onaran

Associate Professor

 

Hacettepe University

Department of Mathematics
 Room 254,  Tel: +90 312 297 7850/ 120

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:

·       On the Support Genus of Legendrian knots, arXiv:2005.04173, submitted.

·       Asymmetric L-space knots by experiment,  joint with C. Anderson, K. L. Baker, X. Gao, M. Kegel, K. Le, K. Miller, G. Sangston, S. Tripp, A. Wood, A. Wright, arXiv:1909.00790, submitted.

·       Legendrian Hopf links, joint with H. Geiges, arXiv:1907.06489, to appear in the Quarterly Journal of Mathematics.

·       From automorphisms of Riemann surfaces to smooth 4-manifolds, joint with A. Beyaz, P. Naylor, and B. D. Park, Mathematical Research Letters, 27(3) (2020), 629-645.

·       Exceptional Legendrian torus knots, joint with H. Geiges, to appear in IMRN, https://doi.org/10.1093/imrn/rny253.

·       Legendrian lens space surgeries, joint with H. Geiges, Michigan Math J. 67(2) (2018), 405-422.

·       Legendrian torus knots in lens spaces, Turk. J. Math. 42(3) (2018), 936-948.

·       On overtwisted contact surgeries, Bull. Aust. Math. Soc. 98 (2018), 144-148.

·       Non-looseness of non-loose knots, joint with K. L. Baker, AGT 15(2) (2015), 1031-1066.

·       Legendrian rational unknots in lens spaces, joint with H. Geiges, J. Symp. Geom. 13(1) (2015), 17-50.

·       Planar open book decompositions of 3-manifolds, RMJM, 44(5) (2014), 1621-1630.

·       Invariants of legendrian knots from open book decompositions, IMRN 2010(10) (2010), 1831-1859.

·       On sections of genus two Lefschetz fibrations, Pacific J. Math 248(1) (2010), 203-216.

 

Teaching:

·       Fall 2020: MAT235-05, Geometric Topology, Origami & Math

·       Past Teaching

 

** Geometry & Topology Workshop Turkey, November 27, 2020/ January 29, 2021/ March 26, 2021

** Lefschetz Fibrations Day, January 10, 2020 at Hacettepe University, Ankara

** Contact Topology Workshop, March 22, 2019 at Hacettepe University, Ankara

**Geometry/ Topology Days, September 23, October 31, 2016 at Atılım University-December 5, May13 2016 at METU-March 18, April 15, 2016 at Hacettepe University, 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

Açıklama: Açıklama: Açıklama: Açıklama: Açıklama: Açıklama: Açıklama: Açıklama: Açıklama: Açıklama: Açıklama: Açıklama: Açıklama: Açıklama: Açıklama: Açıklama: Açıklama: Açıklama: Açıklama: Açıklama: Description: Description: Description: Description: Description: Description: Description: Description: Description: Description: Description: Description: Description: Description: Description: Description: Untitled-2_2