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# Forum: Linear and Abstract Algebra

Linear Systems of Equations, Eigenvalues and Eigenvectors, Vector Spaces, Groups, Rings, Fields

2. ### Linear Algebra Proofs and Problems

• Replies: 1
• Views: 14,136
March 8th, 2012, 20:05

• Replies: 1
• Views: 35
GJA
Today, 00:24
3. ### Check the statements about a 4x5 matrix with rank 2.

• Replies: 9
• Views: 150
February 19th, 2019, 20:03
4. ### Open neighbourhoods and equating coefficients of polynomials

• Replies: 0
• Views: 76
February 18th, 2019, 07:51
5. ### [SOLVED] e8 Find a basis for the null space of A, the dimension of the null space of A, and the rank of A.

• Replies: 4
• Views: 152
February 12th, 2019, 21:42
6. ### [SOLVED] e1.4b shrinking co factors

• Replies: 5
• Views: 150
February 10th, 2019, 12:23
7. ### [SOLVED] e1.4b Determinant with zero column

• Replies: 1
• Views: 84
February 8th, 2019, 20:25
8. ### [SOLVED] basis for R^2

• Replies: 8
• Views: 149
February 7th, 2019, 18:51

• Replies: 2
• Views: 114
February 4th, 2019, 19:47
10. ### Proving General Associativity for Group by induction

• Replies: 5
• Views: 147
February 3rd, 2019, 13:00
11. ### [SOLVED] Proof the set with the multiplication is a group

• Replies: 1
• Views: 75
February 3rd, 2019, 11:55
12. ### Determine if this is a vector space.

• Replies: 5
• Views: 111
February 1st, 2019, 13:16
13. ### Determine if a group is abelian

• Replies: 2
• Views: 124
January 30th, 2019, 02:27
14. ### Kernel of trace is equal to V

• Replies: 4
• Views: 175
January 29th, 2019, 15:51
15. ### A and solution are known find B matrix

• Replies: 3
• Views: 113
January 29th, 2019, 13:51
16. ### Show that A is invertible

• Replies: 2
• Views: 134
January 21st, 2019, 08:54
17. ### [SOLVED] matrix (AB)^T

• Replies: 1
• Views: 131
January 19th, 2019, 18:43
18. ### Linear Combination - missing data ?

• Replies: 3
• Views: 103
January 19th, 2019, 07:17
19. ### [SOLVED] 5.2 another Ax=B with an inverse

• Replies: 2
• Views: 119
January 18th, 2019, 09:33
20. ### Vector subspace

• Replies: 5
• Views: 171
January 15th, 2019, 10:50
21. ### Combination of Linear Transformations

• Replies: 2
• Views: 152
January 9th, 2019, 08:48
22. ### A question about surjective module-homomorphisms

• Replies: 3
• Views: 196
January 7th, 2019, 14:01
23. ### Inverse of Matrices

• Replies: 2
• Views: 150
January 2nd, 2019, 07:33

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