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1.

図書
図書
1. Symmetries of spacetimes and Riemannian manifolds
by Krishan L. Duggal and Ramesh Sharma
出版情報: Dordrecht : Kluwer Academic, c1999
シリーズ名: Mathematics and its applications ; v. 487
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2.

図書
図書
2. Lightlike submanifolds of semi-Riemannian manifolds and applications
by Krishan L. Duggal and Aurel Bejancu
出版情報: Dordrecht ; Boston, Mass. : Kluwer Academic, c1996
シリーズ名: Mathematics and its applications ; v. 364
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3.

図書
図書
3. Differential geometry and mathematical physics : AMS-CMS Special Session on Geometric Methods in Mathematical Physics, August 15-19, 1993, Vancouver, British Columbia, Canada
John K. Beem, Krishan L. Duggal, editors
出版情報: Providence, R.I. : American Mathematical Society, c1994
シリーズ名: Contemporary mathematics ; v. 170
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