Research Article

Isoclinism and Stem Structures of 2-Groups

Number: 52 September 30, 2025

Isoclinism and Stem Structures of 2-Groups

Abstract

This study investigates the concept of isoclinism in the category of 2-groups by extending classical group-theoretic notions to higher categorical structures. Building on the categorical equivalence between crossed modules and 2-groups, the paper characterizes isoclinism for 2-groups through commutator maps and explores its key properties. Notably, it demonstrates that isoclinism forms an equivalence relation in the category of 2-groups, similar to the group and crossed module contexts. The paper further proves that every 2-group is isoclinic to a stem 2-group and establishes that isoclinism between 2-groups implies the corresponding isoclinism between their associated crossed modules. These results contribute to the broader understanding of homotopy-theoretic and categorical classifications within algebraic topology and category theory.

Keywords

References

  1. P. Hall, The classification of prime-power groups, Journal Für Die Reine Und Angewandte Mathematik 182 (1940) 130–141.
  2. M. Hall, J. K. Senior, The groups of order $2^n$ $(n \leq 6)$, Macmillan, 1964.
  3. R. Modabbernia, Isologism, Schur-pair property and Baer-invariant of groups, World Applied Sciences Journal 16 (11) (2012) 1631–1637.
  4. A. R. Salemkar, H. Bigdely, V. Alamian, Some properties on isoclinism of Lie algebras and covers, Journal of Algebra and Its Applications 7 (4) (2008) 507–516.
  5. F. Parvaneh, M. R. R. Moghaddam, A. Khaksar, Some properties of n-isoclinism in Lie algebras, Italian Journal of Pure and Applied Mathematics 28 (2011) 165–176.
  6. H. Mohammadzadeh, A. R. Salemkar, Z. Riyahi, Isoclinic extensions of Lie algebras, Turkish Journal of Mathematics 37 (4) (2013) 598–606.
  7. J. H. C. Whitehead, Combinatorial homotopy. II, Bulletin of the American Mathematical Society 55 (5) (1949) 453–496.
  8. S. Eilenberg, S. MacLane, General theory of natural equivalences, Transactions of the American Mathematical Society 58 (2) (1945) 231–294.

Details

Primary Language

English

Subjects

Category Theory, K Theory, Homological Algebra

Journal Section

Research Article

Early Pub Date

September 30, 2025

Publication Date

September 30, 2025

Submission Date

June 24, 2025

Acceptance Date

August 25, 2025

Published in Issue

Year 2025 Number: 52

APA
Şahan, T., & Soyyiğit, O. (2025). Isoclinism and Stem Structures of 2-Groups. Journal of New Theory, 52, 9-26. https://doi.org/10.53570/jnt.1726569
AMA
1.Şahan T, Soyyiğit O. Isoclinism and Stem Structures of 2-Groups. JNT. 2025;(52):9-26. doi:10.53570/jnt.1726569
Chicago
Şahan, Tunçar, and Onur Soyyiğit. 2025. “Isoclinism and Stem Structures of 2-Groups”. Journal of New Theory, nos. 52: 9-26. https://doi.org/10.53570/jnt.1726569.
EndNote
Şahan T, Soyyiğit O (September 1, 2025) Isoclinism and Stem Structures of 2-Groups. Journal of New Theory 52 9–26.
IEEE
[1]T. Şahan and O. Soyyiğit, “Isoclinism and Stem Structures of 2-Groups”, JNT, no. 52, pp. 9–26, Sept. 2025, doi: 10.53570/jnt.1726569.
ISNAD
Şahan, Tunçar - Soyyiğit, Onur. “Isoclinism and Stem Structures of 2-Groups”. Journal of New Theory. 52 (September 1, 2025): 9-26. https://doi.org/10.53570/jnt.1726569.
JAMA
1.Şahan T, Soyyiğit O. Isoclinism and Stem Structures of 2-Groups. JNT. 2025;:9–26.
MLA
Şahan, Tunçar, and Onur Soyyiğit. “Isoclinism and Stem Structures of 2-Groups”. Journal of New Theory, no. 52, Sept. 2025, pp. 9-26, doi:10.53570/jnt.1726569.
Vancouver
1.Tunçar Şahan, Onur Soyyiğit. Isoclinism and Stem Structures of 2-Groups. JNT. 2025 Sep. 1;(52):9-26. doi:10.53570/jnt.1726569

 

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