In the theory of one-relator groups, Magnus subgroups, which are free subgroups obtained by omitting a generator that occurs in the given relator, play an essential structural role. In a previous article, the author proved that if two distinct Magnus subgroups M and N of a one-relator group, with free bases S and T are given, then the intersection of M and N is either the free subgroup P genera...

A new species of sesarmid crab, Chiromantes magnus, is described from the Ogasawara (Bonin) Is., Japan. The new species was previously confused with C. dehaani (H. Milne Edwards, 1853). The different carapace shape, proportionally longer ambulatory legs, large adult size and the distinct live coloration distinguish the new species from its two closest congeners, C. dehaani and C. neglectus (De ...

Peptococcus magnus is a biochemically inactive anaerobic Gram-positive coccus similar in morphology to the staphylococcus. It has been found (Smith, 1975) as part of the normal flora of the mouth, vagina, and skin. Previous reports (Pien et al., 1972; Spaulding et al., 1974) have described significant infections with this organism, but knowledge of its pathogenicity is incomplete since speciati...

Marléne Isaksson1, Annica Inerot2, Carola Lidén3,4, Magnus Lindberg5, Mihaly Matura3,4, Halvor Möller1, Berndt Stenberg6 and Magnus Bruze1 1Department of Occupational and Environmental Dermatology, Skåne University Hospital, Lund University, Malmö SE-205 02, Sweden, 2Department of Dermatology, Sahlgrenska University Hospital, Gothenburg SE-413 45, Sweden, 3 Institute of Environmental Medicine, ...

Department of Psychiatry, Brain Center Rudolf Magnus, University Medical Centre Utrecht, Utrecht, Department of Language and Genetics, Max Planck Institute for Psycholinguistics, Radboud University Medical Centre, Donders Institute for Brain, Cognition and Behaviour and Department of Human Genetics and Psychiatry, Radboud University Medical Centre, Donders Institute for Brain, Cognition and Beh...

We study the internal structure of enveloping algebras of preLie algebras. We show in particular that the canonical projections arising from the Poincaré-Birkhoff-Witt theorem can be computed explicitely. They happen to be closely related to the Magnus formula for matrix differential equations. Indeed, we show that the Magnus formula provides a way to compute the canonical projection on the pre...