49 citations · 96 across the 5 of their papers we have counts for
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hep-th2004★ 4 cited
Invariant star-products on S^2 and the canonical trace
Keizo Matsubara, Mårten Stenmark
In the literature there are two different ways of describing an invariant star product on . We show that the products are actually the same. We also calculate the canonical tr…
hep-th2001★ 27 cited
Open Strings in Simple Current Orbifolds
Keizo Matsubara, Volker Schomerus, Mikael Smedback
We study branes and open strings in a large class of orbifolds of a curved background using microscopic techniques of boundary conformal field theory. In particular, we obtain fact…
hep-th2000★ 49 cited
Restrictions on Gauge Groups in Noncommutative Gauge Theory
Keizo Matsubara
We show that the gauge groups SU(N), SO(N) and Sp(N) cannot be realized on a flat noncommutative manifold, while it is possible for U(N).