Linear and Abstract Algebra

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

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  1. filkoge

    Show that x -> x^p is an automorphism in K

    filkoge, Dec 25, 2024
    Replies:
    1
    Views:
    129
    Alonzo
    Dec 31, 2024
  2. ghsyey

    Combinatorial argument for irreducible polynomials over GF[2]

    ghsyey, Dec 23, 2024
    Replies:
    0
    Views:
    113
    ghsyey
    Dec 23, 2024
  3. william_

    Did I figure-out z-translation of 2D-coordinates correctly?

    william_, Oct 14, 2024
    Replies:
    1
    Views:
    288
    Oculus8596
    Oct 31, 2024
  4. anonymousinquirer

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

    anonymousinquirer, Aug 8, 2023
    Replies:
    1
    Views:
    1,077
    RobertSmart
    May 13, 2024
  5. bob123456789

    Projecting a hypercube onto a hyperplane

    bob123456789, Oct 12, 2023
    Replies:
    1
    Views:
    948
    RobertSmart
    Apr 26, 2024
  6. nycmathguy

    Operations With Matrices

    nycmathguy, Jun 13, 2022
    Replies:
    3
    Views:
    645
    e.jane.aran
    Oct 7, 2023
  7. eshamash

    Explicit solutions to Ax = b

    eshamash, Jul 20, 2023
    Replies:
    0
    Views:
    293
    eshamash
    Jul 20, 2023
  8. nycmathguy

    Product of Two Matrices...2

    nycmathguy, Jun 13, 2022
    Replies:
    4
    Views:
    957
    nycmathguy
    Jun 14, 2022
  9. nycmathguy

    Product of Two Matrices...1

    nycmathguy, Jun 13, 2022
    Replies:
    4
    Views:
    388
    nycmathguy
    Jun 14, 2022
  10. nycmathguy

    Equality of Matrices

    nycmathguy, Jun 13, 2022
    Replies:
    2
    Views:
    364
    nycmathguy
    Jun 14, 2022
  11. nycmathguy

    Products of Diagonal Matrices

    nycmathguy, Jun 13, 2022
    Replies:
    2
    Views:
    373
    nycmathguy
    Jun 13, 2022
  12. akw

    Spectrum of the second derivative

    akw, Apr 9, 2022
    Replies:
    0
    Views:
    581
    akw
    Apr 9, 2022
  13. abdo abdo

    Is Z6 subring of Z12?

    abdo abdo, May 13, 2017
    Replies:
    5
    Views:
    5,094
    nycmathguy
    Mar 11, 2022
  14. bob1352

    Matrix Frame Reference, B relative to A

    bob1352, Mar 11, 2022
    Replies:
    0
    Views:
    489
    bob1352
    Mar 11, 2022
  15. Displayer18

    Basis of W

    Displayer18, May 5, 2020
    Replies:
    2
    Views:
    1,143
    HallsofIvy
    Nov 23, 2021
  16. remy

    how to find the values of?

    remy, Nov 12, 2021
    Replies:
    2
    Views:
    734
    remy
    Nov 19, 2021
  17. Kio_Hostler

    Set elements are greater

    Kio_Hostler, Nov 24, 2019
    Replies:
    2
    Views:
    752
    nycmathguy
    Nov 7, 2021
  18. Humboldt

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

    Humboldt, Mar 28, 2021
    Replies:
    2
    Views:
    765
    nycmathguy
    Jul 5, 2021
  19. Stedman

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

    Stedman, Apr 19, 2020
    Replies:
    0
    Views:
    1,015
    Stedman
    Apr 19, 2020
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