Results 11 to 20 of about 106,135 (262)
Metanilpotent fitting classes [PDF]
Journal of the Australian Mathematical Society, 1974 Hawkes showed in [10] that classes of metanilpotent groups which are both formations and Fitting classes are saturated and subgroup closed; more, he characterized all such classes as those local formations with a local definition consisting of saturated formations (of nilpotent groups).
Bryce, R. A., Cossey, John
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Proceedings of the Edinburgh Mathematical Society, 1992 The authors together with M. J. Karbe [Ill. J. Math.33 (1989) 333–359] have considered Fitting classesof-groups and, under some rather strong restrictions, obtained an existence and conjugacy theorem for-injectors. Results of Menegazzo and Newell show that these restrictions are, in fact, necessary.The Fitting classisnormalif, for eachis the unique ...
J. C. Beidleman, M. J. Tomkinson
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Fitting classes and lattice formations II [PDF]
Journal of the Australian Mathematical Society, 2004 AbstractGiven a lattice formation F of full characteristic, an F - Fitting class is a Fitting class with stronger closure properties involving F -subnormal subgroups. The main aim of this paper is to prove that the associated injectors possess a good behaviour with respect to F -subnormal subgroups.
Arroyo-Jordá, M., Pérez-Ramos, M. D.
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Quasispecies on Class-Dependent Fitness Landscapes [PDF]
Bulletin of Mathematical Biology, 2016 We study Eigen's quasispecies model in the asymptotic regime where the length of the genotypes goes to infinity and the mutation probability goes to 0. We give several explicit formulas for the stationary solutions of the limiting system of differential equations.
Cerf, Raphaël, Dalmau, Joseba
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Quasinormal Fitting classes of finite groups
Журнал Белорусского государственного университета: Математика, информатика, 2019 Let P be the set of all primes, Zn a cyclic group of order n and X wr Zn the regular wreath product of the group X with Zn. A Fitting class F is said to be X-quasinormal (or quasinormal in a class of groups X ) if F ⊆ X, p is a prime, groups G ∈ F and G ...
Anna V. Martsinkevich
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The Astrophysical Journal Supplement Series, 2023 Open clusters (OCs) are regarded as tracers to understand stellar evolution theory and validate stellar models. In this study, we presented a robust approach to identifying OCs.
Huanbin Chi +3 more
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ESTIMATING SOIL PARTICLE-SIZE DISTRIBUTION FOR SICILIAN SOILS
Journal of Agricultural Engineering, 2009 The soil particle-size distribution (PSD) is commonly used for soil classification and for estimating soil behavior. An accurate mathematical representation of the PSD is required to estimate soil hydraulic properties and to compare texture measurements ...
Vincenzo Bagarello +2 more
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Stochastic Aspects of Proportional Vitalities Model
Mathematics, 2020 In this paper, a family of models requiring proportional mean life vitalities is considered. The problem of estimation of the parameter(s) of the model is studied in two cases of known and unknown baselines along with some simulation studies to detect ...
Mansour Shrahili +3 more
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Evaluation of Interpolants in Their Ability to Fit Seismometric Time Series
Mathematics, 2015 This article is devoted to the study of the ASARCO demolition seismic data. Two different classes of modeling techniques are explored: First, mathematical interpolation methods and second statistical smoothing approaches for curve fitting.
Kanadpriya Basu +3 more
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ETAS: An R Package for Fitting the Space-Time ETAS Model to Earthquake Data
Journal of Statistical Software, 2019 The epidemic-type aftershock sequence (ETAS) model is the most widely used statistical model to describe earthquake catalogs. ETAS is an R package for fitting the space-time ETAS model to an earthquake catalog using the stochastic declustering approach ...
Abdollah Jalilian
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