19 citations · 166 across the 26 of their papers we have counts for
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math-ph2002★ 19 cited
Lens optics as an optical computer for group contractions
S. Baskal, Y. S. Kim
It is shown that the one-lens system in para-axial optics can serve as an optical computer for contraction of Wigner's little groups and an analogue computer which transforms analy…
gr-qc2002★ 3 cited
Killing-Yano symmetry for a class of spacetimes admitting parallel null 1-planes
D. Baleanu, S. Baskal
A possible generalization of plane fronted waves with parallel rays (gpp-wave) fall into a more general class of metrics admitting parallel null 1-planes. For gpp-wave metric, the…