3,078 research outputs found
A New Species of Mite (Acari: Podapolipidae) From a Michigan Carabid Beetle, \u3ci\u3eChlaenius Pennsylvanicus\u3c/i\u3e
Eutarsopolipus regenfussi n. sp. is described from the Michigan carabid beetle, Chlaenius pennsylvanicus (L.)
Transitive simple subgroups of wreath products in product action
A transitive simple subgroup of a finite symmetric group is very rarely
contained in a full wreath product in product action. All such simple
permutation groups are determined in this paper. This remarkable conclusion is
reached after a definition and detailed examination of `Cartesian
decompositions' of the permuted set, relating them to certain `Cartesian
systemsof subgroups'. These concepts, and the bijective connections between
them, are explored in greater generality, with specific future applications in
mind.Comment: Submitte
Proportions of r-regular elements in finite classical groups
For a prime , we obtain lower bounds on the proportion of -regular
elements in classical groups and show that these lower bounds are the best
possible lower bounds that do not depend on the order of the defining field.
Along the way, we also provide new upper bounds and answer some open questions
of the first author, P\'{a}lfy and Saxl.Comment: 22 page
Reading on Grade Level in Third Grade: How Is It Related to High School Performance and College Enrollment?
Illustrates how third-grade reading level correlates with eighth-grade reading level, which, along with ninth-grade school traits, correlates with ninth-grade performance, which in turn correlates with high school graduation and college attendance rates
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