On the rectilinear congruences of Lorentz manifold [R3,(+,+,−)] establishing a mapping between its focal surfaces, preserving the mean curvatures

✍ Scribed by B. J. Papantoniou

• Book ID: 112908078
• Publisher: Springer Milan
• Year: 1988
• Tongue: Italian
• Weight: 346 KB
• Volume: 37
• Category: Article
• ISSN: 0009-725X
• DOI: 10.1007/bf02844265