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| Regularity of Keldys-Fichera Boundary Value Problemfor Degenerate Elliptic Equations |
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Citation： |
Limei LI,Tian MA.Regularity of Keldys-Fichera Boundary Value Problemfor Degenerate Elliptic Equations[J].Chinese Annals of Mathematics B,2010,31(5):713~722 |
| Page view： 1805
Net amount： 1204 |
Authors： |
Limei LI; Tian MA; |
Foundation： |
the National Natural Science Foundation of China (No. 10971148) |
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| Abstract： |
In this paper, groups of order $p^n$ in which the number of
subgroups of possible order is less than or equal to $p^3 $ are
classified. It turns out that if $p>2,\ n\geq 5$, then the
classification of groups of order $p^n$ in which the number of
subgroups of possible order is less than or equal to $p^3 $ and the
classification of groups of order $p^n$ with a cyclic subgroup of
index $p^2$ are the same. |
Keywords： |
Inner abelian $p$-groups, Metacyclic $p$-groups, Groups of order
$p^n$ with a cyclic subgroup of index $p^2$, The number of subgroups |
Classification： |
35G30 |
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