Linear and Abstract Algebra

Endomorphisms, isomorphisms, linear maps, matrix, theory, groups, rings, fields, Galois theory, eigenvalues and eigenvectors.

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  1. anonymousinquirer

    Function to return a vector after it is divided by (1 + square magnitude)?

    anonymousinquirer, Aug 8, 2023
    Replies:
    0
    Views:
    162
    anonymousinquirer
    Aug 8, 2023
  2. eshamash

    Explicit solutions to Ax = b

    eshamash, Jul 20, 2023
    Replies:
    0
    Views:
    173
    eshamash
    Jul 20, 2023
  3. nycmathguy

    Equality of Matrices

    nycmathguy, Jun 13, 2022
    Replies:
    2
    Views:
    254
    nycmathguy
    Jun 14, 2022
  4. nycmathguy

    Products of Diagonal Matrices

    nycmathguy, Jun 13, 2022
    Replies:
    2
    Views:
    264
    nycmathguy
    Jun 13, 2022
  5. nycmathguy

    Product of Two Matrices...1

    nycmathguy, Jun 13, 2022
    Replies:
    4
    Views:
    287
    nycmathguy
    Jun 14, 2022
  6. bob1352

    Matrix Frame Reference, B relative to A

    bob1352, Mar 11, 2022
    Replies:
    0
    Views:
    378
    bob1352
    Mar 11, 2022
  7. akw

    Spectrum of the second derivative

    akw, Apr 9, 2022
    Replies:
    0
    Views:
    458
    akw
    Apr 9, 2022
  8. nycmathguy

    Operations With Matrices

    nycmathguy, Jun 13, 2022
    Replies:
    3
    Views:
    527
    e.jane.aran
    Oct 7, 2023
  9. bob123456789

    Projecting a hypercube onto a hyperplane

    bob123456789, Oct 12, 2023
    Replies:
    0
    Views:
    586
    bob123456789
    Oct 12, 2023
  10. remy

    how to find the values of?

    remy, Nov 12, 2021
    Replies:
    2
    Views:
    621
    remy
    Nov 19, 2021
  11. Kio_Hostler

    Set elements are greater

    Kio_Hostler, Nov 24, 2019
    Replies:
    2
    Views:
    648
    nycmathguy
    Nov 7, 2021
  12. Humboldt

    Polarrepresentation of 1/(1/2 - 1/2i)?

    Humboldt, Mar 28, 2021
    Replies:
    2
    Views:
    662
    nycmathguy
    Jul 5, 2021
  13. nycmathguy

    Product of Two Matrices...2

    nycmathguy, Jun 13, 2022
    Replies:
    4
    Views:
    853
    nycmathguy
    Jun 14, 2022
  14. Stedman

    Was Galois aware of group GA(1,5)?

    Stedman, Apr 19, 2020
    Replies:
    0
    Views:
    905
    Stedman
    Apr 19, 2020
  15. Displayer18

    Basis of W

    Displayer18, May 5, 2020
    Replies:
    2
    Views:
    977
    HallsofIvy
    Nov 23, 2021
  16. abdo abdo

    Is Z6 subring of Z12?

    abdo abdo, May 13, 2017
    Replies:
    5
    Views:
    4,393
    nycmathguy
    Mar 11, 2022
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