Please wait a minute...
Journal of Zhejiang University (Science Edition)  2023, Vol. 50 Issue (5): 527-532    DOI: 10.3785/j.issn.1008-9497.2023.05.002
Mathematics and Computer Science     
The number of homomorphisms between two classes of finite 2-groups
Jiajun WANG1,2(),Baijun GAO1,2()
1.School of Mathematics and Statistics,Yili Normal University,Yining 835000,Xinjiang Uygur Autonomous Region,China
2.Institute of Applied Mathematics,Yili Normal University,Yining 835000,Xinjiang Uygur Autonomous Region,China
Download: HTML( 2 )   PDF(426KB)
Export: BibTeX | EndNote (RIS)      

Abstract  

The number of homomorphisms between finite 2-groups M2(2,m) and generalized quaternion groups Q4n a kind of maximal class 2-groups, is obtained by studying the structure of M2(2,m). Further, it is verified that the above groups satisfy the conjecture of ASAI and YOSHIDA.



Key wordsfinite 2-groups      the number of homomorphisms      conjecture of ASAI and YOSHIDA     
Received: 19 July 2022      Published: 16 September 2023
CLC:  O 152.7  
Corresponding Authors: Baijun GAO     E-mail: xxwjj2020@163.com;dqgbj2008@163.com
Cite this article:

Jiajun WANG,Baijun GAO. The number of homomorphisms between two classes of finite 2-groups. Journal of Zhejiang University (Science Edition), 2023, 50(5): 527-532.

URL:

https://www.zjujournals.com/sci/EN/Y2023/V50/I5/527


两类有限2-群之间的同态数量

研究了有限2-群M2(2m)的结构特征,计算了其与极大类2-群中的广义四元数群Q4n之间的同态数量,并验证了这两类群满足ASAI和YOSHIDA猜想。


关键词: 有限2-群,  同态数量,  ASAI和YOSHIDA猜想 
 
[1]   YOSHIDA T. | H o m ( A , G ) | [J]. Journal of Algebra, 1993, 156(1): 125-156. DOI:10.1006/jabr.1993.1066
doi: 10.1006/jabr.1993.1066
[2]   FROBENIUS G. Uber Einen Fundamentalsatz der Gruppentheorie[M]. Berlin: Spring-Verlag,1903:330-334.
[3]   ASAI T, YOSHIDA T. | H o m ( A , G ) | II[J]. Journal of Algebra, 1993, 160(1): 273-285. DOI:10.1006/jabr.1993.1188
doi: 10.1006/jabr.1993.1188
[4]   CHIGIRA N, TAKEGAHARA Y, YOSHIDA T. On the number of homomorphisms from a finite group to a general linear group[J]. Journal of Algebra, 2000, 232(1): 236-254. DOI:10.1006/jabr.1999. 8398
doi: 10.1006/jabr.1999. 8398
[5]   BATE M. The number of homomorphisms from finite groups to classical groups[J]. Journal of Algebra, 2007, 308(2): 612-628. DOI:10.1016/j.jalgebra. 2006.09.03 .
doi: 10.1016/j.jalgebra. 2006.09.03
[6]   林双, 杨秀良. 全变换半群 T n 与对称逆半群 I S n 之间的同态[J]. 浙江大学学报(理学版), 2013, 40(2): 123-126. DOI:10.3785/j.issn.1008-9497. 2013.02.001
LIN S, YANG X L. The homomorphisms between full transformation semigroup T n and symmetric inverse semigroup I S n [J]. Journal of Zhejiang University(Science Edition), 2013, 40(2): 123-126. DOI:10.3785/j.issn.1008-9497.2013.02.001
doi: 10.3785/j.issn.1008-9497.2013.02.001
[7]   RAJKUMAR R, GAYATHRI M, ANITHA T. The number of homomorphisms from quaternion group into some finite groups[J]. International Journal of Mathematics and its Applications, 2015, 3(3-A): 23-30.
[8]   RAJKUMAR R, GAYATHRI M, ANITHA T. Counting homomorphisms from quasi-dihedral group into some finite groups[J]. International Journal of Mathematics and its Applications, 2015, 3(3-B): 9-13.
[9]   RAJKUMAR R, GAYATHRI M, ANITHA T. The number of homomorphisms from dihedral group into some finite groups[J]. Mathematical Sciences International Research Journal, 2015, 4(1): 161-165.
[10]   郝延芹, 海进科. ASAI和YOSHIDA猜想的一个注记[J]. 吉林大学学报(理学版), 2017, 55(6): 1473-1476. DOI:10.13413/j.cnki.jdxblxb.2017.06.23
HAO Y Q, HAI J K. A note on conjecture of ASAI and YOSHIDA[J]. Journal of Jilin University (Science Edition), 2017, 55(6): 1473-1476. DOI:10.13413/j.cnki.jdxblxb.2017.06.23
doi: 10.13413/j.cnki.jdxblxb.2017.06.23
[11]   尚博. 关于某些群之间群同态个数的同余问题研究[D].青岛: 青岛大学, 2018.
SHANG B. The Congruence of the Number of Homomorphisms between Some Groups[D]. Qingdao: Qingdao University, 2018.
[12]   李凤娇, 高百俊. 四元数群到一类 10   p n 阶非交换群的同态数量[J]. 吉林大学学报(理学版), 2020, 58(5): 1085-1092. DOI:10.13413/j.cnki.jdxblxb. 2020009
LI F J, GAO B J. Number of homomorphisms from quaternion group to a class of non-abelian groups with order 10   p n [J]. Journal of Jilin University (Science Edition), 2020, 58(5): 1085-1092. DOI:10.13413/j.cnki.jdxblxb.2020009
doi: 10.13413/j.cnki.jdxblxb.2020009
[13]   张良, 海进科. 一类亚循环群同态个数的计算[J]. 吉林大学学报(理学版), 2018, 56(5): 1045-1048. DOI:10.13413/j.cnki.jdxblxb.2018.05.02
ZHANG L, HAI J K. Calculation of number of homomorphisms of a class of metacyclic groups[J]. Journal of Jilin University (Science Edition), 2018, 56(5): 1045-1048. DOI:10.13413/j.cnki.jdxblxb.2018.05.02
doi: 10.13413/j.cnki.jdxblxb.2018.05.02
[14]   马雪丽, 郭继东, 海进科. 四元数群到一类亚循环群之间的同态个数[J]. 云南大学学报(自然科学版), 2019, 41(2): 1-7. DOI:10.7540/j.ynu.20180069
MA X L, GUO J D, HAI J K. The number of homomorphisms from the quaternion group into a class of metacyclic groups[J]. Journal of Yunnan University(Natural Sciences Edition), 2019, 41(2): 1-7. DOI:10.7540/j.ynu.20180069
doi: 10.7540/j.ynu.20180069
[15]   ROSE J S. A Course on Group Theory[M]. Cambridge: Cambridge University Press,1978.
[16]   徐明曜, 曲海鹏. 有限p群[M]. 北京: 北京大学出版社, 2010.
XU M Y, QU H P. Finite p Groups[M]. : Beijing Peking University Press, 2010.
[17]   徐明曜. 有限群导引(上)[M]. : 北京科学出版社, 2007. doi:10.1017/cbo9780511542756.002
XU M Y. An Introduction to Finite Groups[M]. : Beijing Science Press, 2007. doi:10.1017/cbo9780511542756.002
doi: 10.1017/cbo9780511542756.002
No related articles found!