Department of Mathematics - Nihat Sadik DEG

Nihat Sadık DEĞER, Ph.D., Professor

Personal URL	http://www.math.boun.edu.tr/instructors/deger/
E-mail	sadik.deger boun.edu.tr
Office	TB 220
Phone (office)	+ 90 (212) 359 6650
Address	Bogaziçi University Faculty of Arts and Science Department of Mathematics 34342, Bebek-Istanbul, Turkey

: : Education

Ph.D. in Physics, Texas A&M University, 2001
B.S. in Physics and Mathematics, Middle East Technical University, 1994

: : Areas of Interest

String/M Theory
Supergravity Theories

: : Publications

Deger N.S., Nazari Z., Sarioglu O., Supersymmetric Solutions of N = (1,1) General Massive Supergravity, Phys.Rev. D97 (2018) 106022, DOI: 10.1103/PhysRevD.97.106022. https://journals.aps.org/prd/abstract/10.1103/PhysRevD.97.106022
Deger N.S., Moutsopoulos, G., Rosseel J., Critical N=(1,1) General Massive Supergravity, JHEP 1804 (2018) 105, DOI: 10.1007/JHEP07(2017)117. https://link.springer.com/article/10.1007/JHEP04%282018%29105
Charyyev J., Deger N.S., Homogeneous Solutions of Minimal Massive 3D Gravity, Phys. Rev. D 96, 026024 (2017) , https://journals.aps.org/prd/abstract/10.1103/PhysRevD.96.026024
Bakhmatov I., Deger N.S., Gutowski J., Ó Colgáin E., Yavartanoo H., Calibrated Entanglement Entropy, JHEP 1707 (2017) 117 , https://link.springer.com/article/10.1007%2FJHEP07%282017%29117
N.S. Deger, Time-Dependent AdS Backgrounds from S-Branes, Phys.Lett. B (2016), 209-213, DOI: 10.1016/j.physletb.2016.07.024
N.S. Deger, G. Moutsopoulos, Supersymmetric solutions of N = (2, 0) topologically massive supergravity, Class. Quantum Grav. 33 (2016) 155006, doi:10.1088/0264-9381/33/15/155006
N.S. Deger, O. Sarioglu, Kundt solutions of minimal massive 3D gravity, Phys. Rev. D 92, 104015 (2015), http://journals.aps.org/prd/abstract/10.1103/PhysRevD.92.104015
N.S. Deger, G. Moutsopoulos, H. Samtleben, O. Sarioglu, All timelike supersymmetric solutions of three-⁠dimensional half-⁠maximal supergravity, JHEP 1506 (2015) 147, http://link.springer.com/article/10.1007%2FJHEP06%282015%29147
N.S. Deger, M. Besken, Intersections of S-branes with Waves and Monopoles, Nucl.Phys. B894 (2015) 328-340, http://www.sciencedirect.com/science/article/pii/S0550321315000954
N.S. Deger, H. Samtleben, O. Sarioglu, D. Van den Bleeken, A supersymmetric reduction on the three-sphere, Nucl.Phys. B890 (2015) 350-362, http://www.sciencedirect.com/science/article/pii/S0550321314003587
N.S. Deger, A. Kaya, H. Samtleben, E. Sezgin, Supersymmetric warped AdS in extended topologically massive supergravity, Nuclear Physics B, Volume 884, July 2014, Pages 106-124, http://dx.doi.org/10.1016/j.nuclphysb.2014.04.011
N.S. Deger, A. Kaya (2011). "Deformations of cosmological solutions of $\90dpi \inline $D=11$$ supergravity. ", Phys. Rev. D 84(4): 046005, 7 http://link.aps.org/doi/10.1103/PhysRevD.84.046005 .
N.S. Deger, H. Samtleben, Ö. Sarıoğlu (2010). "On The Supersymmetric Solutions of $\90dpi \inline $D=3$$ Half-maximal Supergravities.", Nucl.Phys.B 840:29-53 http://dx.doi.org/10.1016/j.nuclphysb.2010.06.020 .
Çatal-Özer, A. and N. S. Değer (2009). "Beta, dipole and noncommutative deformations of $\90dpi \inline $M$$ -theory backgrounds with one or more parameters." Classical Quantum Gravity 26(24): 245015, 29 http://dx.doi.org/10.1088/0264-9381/26/24/245015.
Değer, N. S. and A. Kaya (2009). "Chern-Simons S-brane solutions in M-theory and accelerating cosmologies." J. High Energy Phys.(4): 109, 18 http://dx.doi.org/10.1088/1126-6708/2009/04/109.
Değer, N. S. (2007). "A note on intersections of S-branes with $\90dpi \inline $p$$ -branes." Phys. Rev. D 75(12): 126002, 9 http://prd.aps.org/abstract/PRD/v75/i12/e126002.
Değer, N. S. and Ö. Sarıoğlu (2006). "New supersymmetric solutions in $\90dpi \inline $N=2$$ matter coupled $\90dpi \inline ${\rm AdS}_3$$ supergravities." J. High Energy Phys.(8): 078, 19 pp. (electronic) http://dx.doi.org/10.1088/1126-6708/2006/08/078.
Arapoglu, S., N. S. Değer and A. Kaya (2004). "A note on supergravity solutions for partially localized intersecting branes." Phys. Lett. B 578(1-2): 203--209 http://dx.doi.org/10.1016/j.physletb.2003.08.079.
Arapoglu, S., N. S. Değer, A. Kaya, E. Sezgin and P. Sundell (2004). "Multispin giants." Phys. Rev. D (3) 69(10): 106006, 27 http://dx.doi.org/10.1103/PhysRevD.69.106006.
Değer, N. S. and Ö. Sarıoğlu (2004). "Supersymmetric strings and waves in $\90dpi \inline $D=3$$ , $\90dpi \inline $N=2$$ matter coupled gauged supergravities." J. High Energy Phys.(12): 039, 17 pp. (electronic) (2005) http://dx.doi.org/10.1088/1126-6708/2004/12/039.
Değer, N. S. (2003). "Non-standard intersections of S-branes in $\90dpi \inline $D=11$$ supergravity." J. High Energy Phys.(4): 034, 15 pp. (electronic) http://dx.doi.org/10.1088/1126-6708/2003/04/034.
Değer, N. S. (2002). "Renormalization group flows from $\90dpi \inline $D=3,\ N=2$$ matter coupled gauged supergravities." J. High Energy Phys.(11): 025, 16 http://dx.doi.org/10.1088/1126-6708/2002/11/025.
Değer, N. S. and A. Kaya (2002). "Intersecting S-brane solutions of $\90dpi \inline $D=11$$ supergravity." J. High Energy Phys.(7): 038, 14 http://dx.doi.org/10.1088/1126-6708/2002/07/038.
Değer, N. S. and A. Kaya (2002). "World-volume description of M2-branes ending on an M5-brane and holography." Phys. Lett. B 538(1-2): 164--172 http://dx.doi.org/10.1016/S0370-2693(02)01941-X.
Değer, N. S. and A. Kaya (2001). "AdS/CFT and Randall-Sundrum model without a brane." J. High Energy Phys.(5): Paper 30, 14 http://dx.doi.org/10.1088/1126-6708/2001/05/030.
Değer, N. S., A. Kaya, E. Sezgin, P. Sundell and Y. Tanii (2001). "Chern-Simons supergravity plus matter near the boundary of $\90dpi \inline ${\rm AdS}_3$$ ." Nuclear Phys. B 604(1-2): 343--366 http://dx.doi.org/10.1016/S0550-3213(01)00139-0.
Değer, N. S., A. Kaya, E. Sezgin and P. Sundell (2000). "Matter coupled $\90dpi \inline ${\rm AdS}_3$$ supergravities and their black strings." Nuclear Phys. B 573(1-2): 275--290 http://dx.doi.org/10.1016/S0550-3213(99)00734-8.
Değer, S., A. Kaya, E. Sezgin and P. Sundell (1999). "Spectrum of $\90dpi \inline $D=6$$ , $\90dpi \inline $N=4{\rm b}$$ supergravity on $\90dpi \inline ${\rm AdS}_3\times S^3$$ ." Nuclear Phys. B 536(1-2): 110--140 http://dx.doi.org/10.1016/S0550-3213(98)00555-0.

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