English
Related papers

Related papers: A note on noninner automorphisms of order $p$ for …

200 papers

Every finite $p$-group of coclass 2 has a noninner automorphism of order $p$ leaving the center elementwise fixed.

Group Theory · Mathematics 2013-07-23 A. Abdollahi , S. M. Ghoraishi , Y. Guerboussa , M. Reguiat , B. Wilkens

It is shown that if G is a finite p-group of coclass 2 with p > 2, then G has a noninner automorphism of order p.

Group Theory · Mathematics 2019-02-20 S. Fouladi , R. Orfi

In this paper we prove that every $2$-generator finite $p$-group $G$ has a non-inner automorphism of order $p$ leaving $G^p\gamma_4(G)$ elementwise fixed ($p\ge 5$). Moreover, we prove a $2$-generator finite $3$-group satisfying…

Group Theory · Mathematics 2021-06-01 P. Komma

A longstanding conjecture asserts that every non-abelian finite $p$-group $G$ admits a non-inner automorphism of order $p$. The conjecture is valid for finite $p$-groups of class 2. Here, we prove every finite non-abelian $p$-group $G$ of…

Group Theory · Mathematics 2011-11-01 Alireza Abdollahi , Mohsen Ghoraishi

A conjecture of Berkovich asserts that every non-simple finite p-group has a non-inner automorphism of order p. This conjecture is far from being proved despite the great effort devoted to it. In this paper we prove it for p-groups of…

Group Theory · Mathematics 2013-01-03 Yassine Guerboussa , Miloud Reguiat

We prove that for any prime number $p$, every finite non-abelian $p$-group $G$ of class 2 has a noninner automorphism of order $p$ leaving either the Frattini subgroup $\Phi(G)$ or $\Omega_1(Z(G))$ elementwise fixed.

Group Theory · Mathematics 2016-09-07 A. Abdollahi

A long-standing conjecture asserts that every finite nonabelian $p$-group has a non-inner automorphism of order $p$. In this paper we prove the conjecture for finite $p$-groups of coclass $4$ and coclass $5$ ($p\ge 5$). We also prove the…

Group Theory · Mathematics 2022-05-12 P. Komma

In this paper we study the existence of at least one non-inner automorphism of order p of a non-abelian finite p-group of coclass 3, where p is a prime integer such that p is different from 3.

Group Theory · Mathematics 2016-04-28 Marco Ruscitti , Leire Legarreta , Manoj K. Yadav

In this paper we study the longstanding conjecture of whether there exists a noninner automorphism of order $p$ for a finite non-abelian $p$-group. We prove that if $G$ is a finite non-abelian $p$-group such that $G/Z(G)$ is powerful then…

Group Theory · Mathematics 2009-11-13 Alireza Abdollahi

Any non-abelian finite $p$-group has a non-inner automorphism of order $p$.

Group Theory · Mathematics 2025-12-24 Wei Xu

In this paper we study the existence of at least one non-inner automorphism of order p of a finite thin p-group, for any prime p.

Group Theory · Mathematics 2016-04-26 Marco Ruscitti , Leire Legarreta

Let $G$ be a finite $p$-group.

Group Theory · Mathematics 2017-03-07 Rohit Garg , Deepak Gumber

A long-standing conjecture asserts that every finite non-abelian $p$-group has a non-inner automorphism of order $p$. In this paper, we settle the conjecture for a finite $p$-group ($p >2$) of nilpotency class $n$ with certain conditions.

Group Theory · Mathematics 2024-03-01 Sandeep Singh , Hemant Kalra , Rohit Garg

In this paper we study the existence of at least one non-inner automorphism of order p in a finite normally constrained p-group when p is an odd prime.

Group Theory · Mathematics 2016-10-10 Norberto Gavioli , Leire Legarreta , Marco Ruscitti

Let $G$ be a finite $p$-group of nilpotency class 2. We find necessary and sufficient conditions on $G$ such that each central automorphism of $G$ fixes the center of $G$ element-wise.

Group Theory · Mathematics 2011-01-24 Manoj K. Yadav

In this survey article, we try to summarize the known results towards the long-standing non-inner automorphism conjecture, which states that every finite non-abelian $p$-group has a non-inner automorphism of order $p$.

Group Theory · Mathematics 2020-03-23 Siddhartha Sarkar , Renu Joshi

We study finite p-groups G of coclass upto 4 for which the group Aut_z(G) of all central automorphisms of G is of minimal possible order. As a consequence, we obtain very short and elementary proofs of main results of Sharma and Gumber [7].

Group Theory · Mathematics 2015-03-17 Deepak Gumber , Hemant Kalra

In this paper we classify all finite 2-groups of class 2 for which every automorphism of order 2 leaving the Frattini subgroup elementwise fixed is inner. We prove that every such group G is isomorphic to Q(n; r) = <a, b| a^{2n}= b^{2r}= 1;…

Group Theory · Mathematics 2012-12-05 A. Abdollahi , M. Ahmadi , S. M. Ghoraishi

Let $p$ be a prime number. A longstanding conjecture asserts that every finite non-abelian $p$-group has a non-inner automorphism of order $p$. In this paper, we prove that the conjecture is true when a finite non-abelian $p$-group $G$ has…

Group Theory · Mathematics 2025-03-04 Mandeep Singh , Mahak Sharma

We characterize finite $p$-groups $G$ of order up to $p^7$ for which the group of central automorphisms fixing the center element-wise is of minimum possibe order.

Group Theory · Mathematics 2015-03-17 Deepak Gumber , Mahak Sharma
‹ Prev 1 2 3 10 Next ›