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References to 'direct products of groups'
1. $C_{mn}\cong C_m\times C_n$ when $m, n$ are relatively prime by yesitis
2. abelian groups form an abelian category, proof that by mps
3. Borel subalgebra by mathcam
4. Cayley-Dickson construction by CWoo
5. central product of groups by Algeboy
6. characteristically simple group by mathcam
7. characterization of finite nilpotent groups by yark
8. Chernikov group by yark
9. classification of semisimple groups by bwebste
10. counterexamples for products and coproduct by Algeboy
11. Coxeter group by Simone
12. cup product by whm22
13. direct integral of Hilbert spaces by rspuzio
14. direct products of homomorphisms by joking
15. direct sum of even/odd functions (example) by mathcam
16. direct sum of Hilbert spaces by asteroid
17. disjoint union by yark
18. divisible group by mathcam
19. Donaldson Freedman exotic R4 by whm22
20. elementary abelian group by yark
21. even and odd functions by yark
22. example of induced representation by rspuzio
23. example of non-separable Hilbert space by rspuzio
24. FC-group by yark
25. finite nilpotent groups by Algeboy
26. finitely generated torsion-free modules over Pr\"ufer domains by gel
27. Galois group of the compositum of two Galois extensions by alozano
28. Gelfand-Naimark representation theorem by PrimeFan
29. graph product of groups by mps
30. group extension by CWoo
31. group socle by Algeboy
32. groups of order pq by yark
33. groups of small order by Daume
34. homogeneous elements of a graded ring by mathcam
35. idempotent by mclase
36. indecomposable group by smw
37. induced representation by djao
38. invariant forms on representations of compact groups by bwebste
39. K-theory by mhale
40. Lie algebra representation by mathcam
41. Lie superalgebra by bci1
42. locally nilpotent group by yark
43. metabelian group by yark
44. metacyclic group by yark
45. periodic group by yark
46. proof of Cauchy's theorem in abelian case by kshum
47. proof of fundamental theorem of finitely generated abelian groups by puuhikki
48. reductive by bwebste
49. representation theory of $\mathfrak{sl}_2 \mathbb{C}$ by benjaminfjones
50. residually $\mathfrak{X}$ by yark
51. restricted direct product by djao
52. semisimple group by Algeboy
53. sheaf of meromorphic functions by archibal
54. simple and semi-simple Lie algebras by mathcam
55. solid set by CWoo
56. structure of $(\mathbb{Z}/n\mathbb{Z})^{\times}$ as an abelian group by rm50
57. subdirect product of groups by yark
58. symmetric monoidal category by CWoo
59. topological group by yark
60. trace forms on algebras by Algeboy
61. variety of groups by yark
62. vector bundle by rspuzio
63. weight (Lie algebras) by GrafZahl
64. wreath product by mps
65. Zeta function of a group by avf