From the Department of Pharmacy Practice and Science, College of Pharmacy, and Department of Family Medicine, Carver College of Medicine, University of Iowa, Iowa City (M.E.E.); and the Section of Cardiovascular Medicine, Yale University School of Medicine, New Haven, CT (M.M.). Address reprint requests to Dr. Ernst at the Department of Family Medicine, University of Iowa Hospitals and Clinics,...

Theorems which allow one to single out “equatorially symmetric” or “equatorially antisymmetric” spacetimes from the totality of stationary axisymmetric electrovac solutions of the Einstein–Maxwell equations were recently published [1] by Ernst, Manko and Ruiz. Specifically, in terms of the complex Ernst potentials [2] E and Φ, equatorially symmetric spacetimes satisfy the conditions E(−z, ρ) = ...

Natalia Siomava, Ernst A. Wimmer, Nico Posnien* 4 5 University Goettingen, Johann-Friedrich-Blumenbach-Institute of Zoology and Anthropology, Göttingen Center 6 for Molecular Biosciences (GZMB), Department of Developmental Biology, Ernst-Caspari-Haus, Justus-von7 Liebig-Weg 11, 37077 Göttingen, Germany 8 9 1 current address: Department of Anatomy, Howard University College of Medicine, Washingt...