Abstract
Let \({\mathfrak {X}}\) be a class of simple groups with a completeness property \(\pi ({\mathfrak {X}}) = \mathrm {char} \, {\mathfrak {X}}\). A formation is a class of finite groups closed under taking homomorphic images and finite subdirect products. Förster introduced the concept of \({\mathfrak {X}}\)-local formation in order to obtain a common extension of well-known Gaschütz–Lubeseder–Schmid, and Baer theorems (Publ Mat Univ Autònoma Barcelona 29(2–3):39–76, 1985). In the present paper, it is shown that any law of the lattice of all formations is true in the lattice of all \({\mathfrak {X}}\)-local formations.
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The author thanks the anonymous referee for the careful and thoughtful reading of the note.
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This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (NRF-2016R1D1A1B02006812).
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This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (NRF-2016R1D1A1B02006812).
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Tsarev, A. Laws of the lattice of all \({\mathfrak {X}}\)-local formations of finite groups. Ricerche mat 71, 673–680 (2022). https://doi.org/10.1007/s11587-021-00556-6
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DOI: https://doi.org/10.1007/s11587-021-00556-6
Keywords
- Finite group
- Formation
- \({\mathfrak {X}}\)-Local satellite
- \({\mathfrak {X}}\)-Local formation
- Lattice of formations
- Modular law