4 citations · 4 across the 1 of their papers we have counts for
3 papers
gr-qc2019
Motion of membranes in space-times with torsion
Özgür Açık, Aytolun Çatalkaya, Ümit Ertem +1
The motion of membranes interacting with external fields in space-times with curvature and torsion is considered. The intrinsic and extrinsic properties of the immersion are fused…
math-ph2017★ 4 cited
Index of Dirac operators and classification of topological insulators
Ümit Ertem
Real and complex Clifford bundles and Dirac operators defined on them are considered. By using the index theorems of Dirac operators, table of topological invariants is constructed…
gr-qc2016
Lie algebra of conformal Killing-Yano forms
Ümit Ertem
We provide a generalization of the Lie algebra of conformal Killing vector fields to conformal Killing-Yano forms. A new Lie bracket for conformal Killing-Yano forms that correspon…