Maps of manifolds with indefinite metrics preserving certain geometrical entities
نویسندگان
چکیده
منابع مشابه
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ژورنال
عنوان ژورنال: International Journal of Mathematics and Mathematical Sciences
سال: 1978
ISSN: 0161-1712,1687-0425
DOI: 10.1155/s0161171278000174