66 citations · 391 across the 35 of their papers we have counts for
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A Triplectic Bi-Darboux Theorem and Para-Hypercomplex Geometry
Igor A. Batalin, Klaus Bering
We provide necessary and sufficient conditions for a bi-Darboux Theorem on triplectic manifolds. Here triplectic manifolds are manifolds equipped with two compatible, jointly non-d…
Absolute instruments and perfect imaging in geometrical optics
Tomas Tyc, Lenka Herzanova, Martin Sarbort +1
We investigate imaging by spherically symmetric absolute instruments that provide perfect imaging in the sense of geometrical optics. We derive a number of properties of such devic…
A Note on Angular Momentum Commutators in Light-Cone Formulation of Open Bosonic String Theory
Klaus Bering
We recalculate in a systematic and pedagogical way one of the most important results of Bosonic open string theory in the light-cone formulation, namely the [J^{-i},J^{-j}] commuta…
Non-Decomposable Nambu Brackets
Klaus Bering
It is well-known that the Fundamental Identity (FI) implies that Nambu brackets are decomposable, i.e., given by a determinantal formula. We find a weaker alternative to the FI tha…