Metric Null Parameter and Conformal Null Parameter of a Minimal Geodesic
Vaiclav Hlavaty
Indiana University Mathematics Journal
1963
text
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10.1512/iumj.1963.12.12042
10.1512/iumj.1963.12.12042
en
Indiana Univ. Math. J. 12 (1963) 643 - 653
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