Invariants: How Mathematicians Distinguish Between Objects

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  • Опубликовано: 18 дек 2024

Комментарии • 53

  • @heriander_
    @heriander_ 5 месяцев назад +2

    I just wated to express my gratitude. Your videos on Calculus and Discrete Math series from years ago might have been the reason I survived college.
    Thank you from the bottom of my heart. ❤❤

  • @northernlight1000
    @northernlight1000 6 месяцев назад +7

    This will be a legendary series! Thanks so much Dr.!

  • @johnchessant3012
    @johnchessant3012 5 месяцев назад +3

    11:00 wow, that's a very interesting way to generate Pythagorean triples out of thin air!
    e.g. [[1, -1], [1, 1]] * [[m/n, 0], [0, n/m]] * [[1/2, 1/2], [-1/2, 1/2]] = (1/2mn) [[m^2+n^2, m^2-n^2], [m^2-n^2, m^2+n^2]]
    and the fact that this has determinant 1 gives us (m^2-n^2)^2 + (2mn)^2 = (m^2+n^2)^2.

  • @Bunnokazooie
    @Bunnokazooie 6 месяцев назад +3

    I love 3 coloring and isomorphisms, glad to see a spectacular introduction to it

  • @tateallen9972
    @tateallen9972 6 месяцев назад +20

    I see the Peterson graph, I click

  • @mostafasaleh5594
    @mostafasaleh5594 6 месяцев назад +7

    Very nice idea for a series Doc! Please do some abstract algebra in the future

    • @DrTrefor
      @DrTrefor  6 месяцев назад +3

      Definitely some coming!

  • @briandwi2504
    @briandwi2504 6 месяцев назад +9

    After your last video explaining your intentions I thought I'd watch. I have watched several of your University series and benefited from them. I am not a huge fan of 'popular ' maths, but this wasn't dumbed down and didn't patronise the viewer. I thought it was very interesting so great start Dr Trefor and the best of luck with this project.

    • @DrTrefor
      @DrTrefor  6 месяцев назад +4

      Thank you so much, that is exactly my goal!

  • @ToolA10
    @ToolA10 6 месяцев назад +1

    Clear explanation of invariance with easy to follow examples. Your excellent animations really help too! And thanks for defining terms like isomorphism. Many videos use it without doing so. Same thing for what the Determinant of a matrix means geometrically. Your depiction makes the linear algebra make more sense.

  • @TomFarrell-p9z
    @TomFarrell-p9z 6 месяцев назад +1

    Great start! Looking forward to the rest of the series.

  • @Itsmisterunknown9
    @Itsmisterunknown9 6 месяцев назад +7

    Huge love from India

    • @DrTrefor
      @DrTrefor  6 месяцев назад +4

      Thank you!

  • @_P_a_o_l_o_
    @_P_a_o_l_o_ 6 месяцев назад +1

    Can't wait to see the next invariants!

  • @PRIYANSH_SUTHAR
    @PRIYANSH_SUTHAR 6 месяцев назад +3

    The study leave is totally going to be worth it.

  • @jimmelton
    @jimmelton 6 месяцев назад +2

    Would love to see some in-depth linear algebra stuff!

    • @DrTrefor
      @DrTrefor  6 месяцев назад +2

      I have a playlist on linear algebra - check it out!

    • @briandwi2504
      @briandwi2504 6 месяцев назад

      @@DrTrefor It is brilliant!

  • @giornoGiovanna964
    @giornoGiovanna964 5 месяцев назад +1

    I would love if you would do a number theory course I would love it

  • @kmjohnny
    @kmjohnny 6 месяцев назад

    The more videos I watch on yt, the more I see how everything in math is connected. I wonder how all math is connected to Trefor's favorite T-shirt.

  • @putin_navsegda6487
    @putin_navsegda6487 6 месяцев назад +1

    thank you, always pleasure to watch your videos !

    • @DrTrefor
      @DrTrefor  6 месяцев назад +1

      Glad you like them!

  • @ValkyRiver
    @ValkyRiver 6 месяцев назад +2

    4:40 caveat - assuming no exclaves

  • @andrewharrison8436
    @andrewharrison8436 6 месяцев назад +1

    Hmm: Invariants, bet Euler gets a mention (actually Maths, bet Euler gets a mention - the odds are good).
    My memory of topology is that it is entirely about Invariants - knot theory particularly.
    Anyway, not dissapointed, makes me realise that I need to revise matricies - that was elegant.

  • @MegaMONI45
    @MegaMONI45 6 месяцев назад

    Just finished my complex analysis exam and am a little drunk but came to say...Dr Bazett full-time youtuber LET'S GOOOOOOO!!!!!!

    • @MegaMONI45
      @MegaMONI45 6 месяцев назад

      ps. If you're doing full-time youtube for a bit, Dr Bazett, could you have a crack at turning your wonderfully creative explanations to some hectics stuff? E.g. Curry-Howard Correspondence? Perhaps live stream you trying to solve the Collatz conjecture? Maybe run through the proof of the Poincare conjecture that won the millennium prize?! Just some ideas...

  • @benjiusofficial
    @benjiusofficial 4 месяца назад

    I wish these would go more in-depth as to the connections between the invariants of each discipline.

  • @AdnanKhan-h7u7c
    @AdnanKhan-h7u7c 6 месяцев назад +1

    Beautiful shirt and interesting series..

  • @ArdenChew271
    @ArdenChew271 6 месяцев назад

    Will you do PDEs in the future

  • @SumanYadav-wr3cn
    @SumanYadav-wr3cn 6 месяцев назад

    Sir please provide lectures on sieve theory

  • @broccoloodle
    @broccoloodle 5 дней назад

    in short, invariant is a function to a set such that the set of same objects is a refinement of the set of fibers

  • @guruji75
    @guruji75 6 месяцев назад

    Is there any link between invariants and conservation laws in physics? Im thinking Noether's theorem...

  • @siamtalukdar-sx7uj
    @siamtalukdar-sx7uj 6 месяцев назад

    It will be really heplful for a mechanical engineering student for Continuum mechanics if you make a course on Tensor Algebra And Tensor Analysis., as there is no reliable course on youtube or net.

  • @Stellectis2014
    @Stellectis2014 6 месяцев назад +1

    Two graphs have different chromatic numbers, there cannot be a graph isomorphism between them. Then how do you explain subgroups?

    • @DrTrefor
      @DrTrefor  6 месяцев назад +1

      The chromatic number of a subgraph is less than or equal to the chromatic number of the original graph.

    • @Stellectis2014
      @Stellectis2014 6 месяцев назад

      @@DrTrefor Thank you Dr. Trefor.

  • @Grassmpl
    @Grassmpl 6 месяцев назад +1

    Good old Petersons graph

  • @fdileo
    @fdileo 6 месяцев назад

    Could you recommend a book about graphs?

  • @Itsmisterunknown9
    @Itsmisterunknown9 6 месяцев назад

    Hi sir

  • @me-tubemath7927
    @me-tubemath7927 6 месяцев назад +1

    How to create videos plz make a video how to make video for videos like you?

    • @DrTrefor
      @DrTrefor  6 месяцев назад +1

      I have this! ruclips.net/video/hmQd_P_qj1w/видео.html

    • @me-tubemath7927
      @me-tubemath7927 6 месяцев назад

      @@DrTrefor shifu, any source to learn matlab for graphing step by step.

  • @stapler942
    @stapler942 2 дня назад

    It's invariants and isomorphisms all the way down. Or something.

  • @BirdsAreVeryCool
    @BirdsAreVeryCool 6 месяцев назад +5

    I like geese

  • @sgiri2012
    @sgiri2012 6 месяцев назад

    Topologists can't distinguish between the two diametrically opposite objects present in your v necked shirt. Expecting topology videos from you

  • @EpicMethGaming
    @EpicMethGaming 6 месяцев назад

    WHOOOOOAAAAAA SKIBID TILET??