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Forum: Linear and Abstract Algebra

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

  1. Sticky Thread Sticky Threads

  2. Sticky Thread Linear Algebra Proofs and Problems

    Started by dwsmith, March 7th, 2012 21:33
    • Replies: 1
    • Views: 11,054
    March 8th, 2012, 20:05 Go to last post
  1. Normal Thread Normal Threads

  2. Row v.s. column picture

    Started by otownsend, October 15th, 2017 22:11
    • Replies: 1
    • Views: 50
    Yesterday, 15:18 Go to last post
  3. Subspace of a vector space

    Started by Yankel, October 12th, 2017 07:50
    closed, empty, show, space, vector
    • Replies: 3
    • Views: 68
    October 12th, 2017, 14:18 Go to last post
  4. A Revised Postulate for Peer Review

    Started by conway, September 26th, 2017 20:27
    3 Pages
    1 2 3
    exist, follows…, number, z1fora, z2forb
    • Replies: 24
    • Views: 570
    October 8th, 2017, 11:14 Go to last post
  5. Property of exterior product

    Started by mathmari, September 27th, 2017 14:49
    land, ldots, n_k+1land, property, psi_1land
    • Replies: 5
    • Views: 120
    September 28th, 2017, 07:10 Go to last post
  6. Exterior power

    Started by mathmari, September 26th, 2017 18:43
    a_kpi, holds, land, ldots, phi_1land
    • Replies: 2
    • Views: 107
    September 27th, 2017, 15:59 Go to last post
  7. When do we get a reflection?

    Started by mathmari, July 22nd, 2017 16:41
    3 Pages
    1 2 3
    $z$, composition, line, point, reflection
    • Replies: 20
    • Views: 599
    July 23rd, 2017, 19:18 Go to last post
  8. Reflection across a line

    Started by mathmari, July 14th, 2017 22:08
    $g$, $p$, line, perpendicular, reflection
    • Replies: 5
    • Views: 187
    July 18th, 2017, 17:39 Go to last post
  9. [SOLVED] Scaling

    Started by mathmari, July 16th, 2017 03:28
    3 Pages
    1 2 3
    center, factor, scaling, show, z_1z_2$
    • Replies: 24
    • Views: 530
    July 18th, 2017, 17:24 Go to last post
  10. Conditions so that the determinant is zero

    Started by mathmari, July 13th, 2017 12:57
    2 Pages
    1 2
    $det, a_ij=0$, iff, linear, lines
    • Replies: 14
    • Views: 338
    July 18th, 2017, 17:23 Go to last post
  11. [SOLVED] Mappings - Similarity transformations

    Started by mathmari, July 17th, 2017 15:03
    composition, point, rotation, scaling, similitude
    • Replies: 9
    • Views: 212
    July 18th, 2017, 17:14 Go to last post
  12. [SOLVED] Are the statements correct?

    Started by mathmari, July 16th, 2017 13:34
    3 Pages
    1 2 3
    • Replies: 22
    • Views: 504
    July 18th, 2017, 16:55 Go to last post
  13. [SOLVED] Rotation around an arbitrary point

    Started by mathmari, July 18th, 2017 08:12
    • Replies: 8
    • Views: 202
    July 18th, 2017, 11:22 Go to last post
  14. [SOLVED] Coordinates of the centroid

    Started by mathmari, July 12th, 2017 16:25
    2 Pages
    1 2
    centroid, coordinates, fraca_2+b_22right, intersection, point
    • Replies: 12
    • Views: 304
    July 18th, 2017, 04:02 Go to last post
  15. Find the equation of the polar

    Started by mathmari, July 15th, 2017 11:43
    • Replies: 8
    • Views: 243
    July 15th, 2017, 17:46 Go to last post
  16. [SOLVED] Distance between parallel lines

    Started by mathmari, July 12th, 2017 20:36
    $g$, distance, line, lines, point
    • Replies: 8
    • Views: 220
    July 15th, 2017, 12:14 Go to last post
  17. Equation of the tangent

    Started by mathmari, July 14th, 2017 17:21
    • Replies: 3
    • Views: 133
    July 15th, 2017, 07:06 Go to last post
  18. Galois Groups ... A&F Example 47.7 ... ...

    Started by Peter, July 7th, 2017 02:09
    47.7, anderson, feil, mathbbq, zeta
    • Replies: 2
    • Views: 141
    July 7th, 2017, 23:00 Go to last post
    • Replies: 5
    • Views: 208
    July 7th, 2017, 22:59 Go to last post
  19. Galois Groups ... A&W Theorem 47.1 ... ...

    Started by Peter, July 5th, 2017 00:53
    47.1, alpha, proof, textdegf, theorem
    • Replies: 2
    • Views: 130
    July 7th, 2017, 20:16 Go to last post
  20. Basic Notation for Field Extensions ... ...

    Started by Peter, April 11th, 2017 01:02
    alpha, field, generated, lovett, rings
    • Replies: 2
    • Views: 180
    July 4th, 2017, 21:04 Go to last post
  21. Finite Extensions - A&F Example 44.2 ... ...

    Started by Peter, July 3rd, 2017 23:05
    add, basis, sqrt2, sqrt3, sqrt6
    • Replies: 1
    • Views: 110
    July 4th, 2017, 12:24 Go to last post
  22. Splitting Fields: Anderson and Feil, Theorem 45.6 ...

    Started by Peter, June 23rd, 2017 23:01
    45.6, alpha, anderson, proof, theorem
    • Replies: 1
    • Views: 101
    June 24th, 2017, 22:28 Go to last post
  23. Geometry in Linear Systems

    Started by srg263, June 19th, 2017 21:55
    • Replies: 6
    • Views: 196
    June 23rd, 2017, 06:39 Go to last post
    • Replies: 2
    • Views: 130
    June 22nd, 2017, 22:28 Go to last post
  24. Splitting Fields: Anderson and Feil, Theorem 45.4

    Started by Peter, June 21st, 2017 01:15
    anderson, feil, f[x], read, term-by-term
    • Replies: 6
    • Views: 164
    June 22nd, 2017, 22:26 Go to last post
  25. Splitting Fields: Anderson and Feil, Theorem 45.5

    Started by Peter, June 22nd, 2017 22:23
    alpha, field, irreducible, polynomials, theorem
    • Replies: 0
    • Views: 76
    June 22nd, 2017, 22:23 Go to last post
  26. Galois Theory - Fixed Subfield of K by H ...

    Started by Peter, June 16th, 2017 02:11
    11.1.11, galois, lovett, proposition, theory
    • Replies: 2
    • Views: 110
    June 16th, 2017, 04:40 Go to last post

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