What is a metric space? An example

Поделиться
HTML-код
  • Опубликовано: 6 янв 2025

Комментарии • 46

  • @naveednazim2013
    @naveednazim2013 4 года назад

    Thanks alot Dr. Chris Tisdell. Your lectures supported me more than my teachers . Now I am a teacher , i still follow your lectures. You are my real Teacher.

  • @DrChrisTisdell
    @DrChrisTisdell  13 лет назад +1

    @sekwah09 Yes, n and p can be different and p is any number \ge 1. If they were the same then there would be no need for p in the definition of d_p, rather we would write d_n..

  • @maialharthi6520
    @maialharthi6520 11 лет назад +1

    Dr.Chris
    Thanks it-s a great work. It helps me to understand the metric space.

  • @DrChrisTisdell
    @DrChrisTisdell  12 лет назад +2

    My pleasure.

  • @MaddisonMusicia
    @MaddisonMusicia 4 года назад

    Fantastic explanation. Thanks Chris!

  • @yorkeR177
    @yorkeR177 10 лет назад +2

    Around 2:45 you mentioned d is positive definite, would it more correct to say it is positive semi-definite?

  • @matthayes2693
    @matthayes2693 11 лет назад

    Thanks a lot! Watched your series on metric spaces in preparation for my functional analysis quiz. Was a big help.

  • @thinkmachine_
    @thinkmachine_ 3 года назад

    This was so intuitive!

  • @miqdaadwalji9899
    @miqdaadwalji9899 12 лет назад

    hello Dr. Tisdell, Thank you so much, i guess u just made life easier, studying Real Analysis in at uni, n helped alot, thank you

  • @Axion004
    @Axion004 10 лет назад

    In response to y' = ky+b with the initial condition of y(0) = alpha. You first find that the general solution is in the form of y(t) = alpha*e^kt + (b/k)(e^kt-1). For simplification, I will call the previous equation *star*. You then follow the same procedure and do d/dt( u(t) / * ) replacing u' = ku + b and u(0) = alpha. I think that the numerator should equal zero, but I was unable to simplify all the terms completely.

  • @examinformation5173
    @examinformation5173 6 лет назад

    Please give more video on this topic. Open ball , neighborhood , limit points etc..

  • @rachidyahi3817
    @rachidyahi3817 8 лет назад

    Hi thank you My teacher Chris Tisdell for the good presentation related to the metric spaces. My question is :what are the natural morphisms between metric spaces.

  • @elwathegabdelhmid1679
    @elwathegabdelhmid1679 4 года назад

    please, would you clear picture as to be able follow details

  • @davidsfc9
    @davidsfc9 12 лет назад

    is there any place we can download the notes you use in your presentantions ?

  • @shingen911
    @shingen911 8 лет назад

    Thank you for making the video! It was very helpful to me.

  • @DarkMachineKing
    @DarkMachineKing 12 лет назад

    Is it possible that you can make a video explaining how metric maps work and possible applications?

  • @MegaBdboy
    @MegaBdboy 8 лет назад +3

    How does the metric different from a norm ?

    • @MegaBdboy
      @MegaBdboy 7 лет назад

      The metric measure distance between 2 things and the norm the distance from origine , usually norm is used for vector spaces .

  • @ashenafiayele2567
    @ashenafiayele2567 5 лет назад

    Thank you for this video! It was very helpful to me

  • @algorithmo134
    @algorithmo134 3 года назад

    sir can you make more videos on real analysis?

  • @streampunksheep
    @streampunksheep 8 лет назад

    What is the name of your video pertaining to research on the general metric space?

  • @princesmith3717
    @princesmith3717 9 лет назад

    Sir..suggest me a best book for real analysis;
    in which metric space is given properly...

  • @rohitkaushal4043
    @rohitkaushal4043 10 лет назад +1

    Thanx sir for a gud introduction of metric space

  • @theb4ssm4ncometh
    @theb4ssm4ncometh 12 лет назад

    im not sure how much this question makes sense, but what does p actually represent and/or how is it specified? I am trying to understand an economic index that designates a p but im not sure how or way they chose what they did.
    thank you by the way, the video is great!

  • @prachi579
    @prachi579 8 лет назад

    Thank you for that video.
    But I'm still unable to understand what is metric space actually. As far as I understood is just that it's a function for measuring distances.
    But what's so special about it & why are we studying it😓.

  • @DrChrisTisdell
    @DrChrisTisdell  12 лет назад +3

    It's my pleasure. Good luck with real analysis.

  • @sunnexsunny4817
    @sunnexsunny4817 10 лет назад

    sir pls, if d is a metric on a non empty set X show that the function e defined by e(a,b)=min(1,d(a,b) ) where a,b E X is also a metric on X

  • @romisingh3644
    @romisingh3644 6 лет назад

    Sir This Explenation is best to for matric space for me

  • @Ilovecalculus
    @Ilovecalculus 11 лет назад

    Very nice presentation Thanks sir

  • @chrislam1341
    @chrislam1341 9 лет назад

    hi, what does it mean that the cross between X and X?

  • @Mhmdddm
    @Mhmdddm 3 месяца назад

    Minkowski's inequality can be proven by the method of setting f(ax+(1-@)fy)

    • @Mhmdddm
      @Mhmdddm 3 месяца назад

      Can I have a link to a book to study metric space, please?

  • @dannydilone1493
    @dannydilone1493 11 лет назад +2

    Professor,
    do you have any more lectures on real analysis? I'm writing a paper on metric spaces for an independent study and I have no background in real analysis, I been reading some textbooks on it but it's not making sense to me, if you can guide me to any good resources i'll highly appreciate that!

    • @DrChrisTisdell
      @DrChrisTisdell  11 лет назад +1

      Hi, you may find some related stuff in this playlist - good luck!
      ruclips.net/p/PL7BBBB7E2F4C5B19F&feature=mh_lolz

    • @منيرعباس-ل9ف
      @منيرعباس-ل9ف Год назад

      Master @DrchirsTisdell why X sequre does not matric space

    • @منيرعباس-ل9ف
      @منيرعباس-ل9ف Год назад

      ​@DrChrisTisdell Master why X sequre does not matric space

    • @منيرعباس-ل9ف
      @منيرعباس-ل9ف Год назад

      ​@@DrChrisTisdell ممكن الحل استاذ

  • @IdreesIMala
    @IdreesIMala 5 лет назад

    Hello sir
    l'm Idrees from Kurdistan
    🔴what is G-metric space...?

  • @ahmadhussain7017
    @ahmadhussain7017 5 лет назад

    thanks alot sir

  • @ramsujaschaturvedi3998
    @ramsujaschaturvedi3998 6 лет назад

    very useful
    thanks

  • @Franzpubg123
    @Franzpubg123 6 лет назад +1

    Please I need a group of mathematics to help me out I am studying abstract math

    • @delta8868
      @delta8868 6 лет назад

      Feel free to join discord.gg/FfjMM6E ;)

  • @burhanashraf8186
    @burhanashraf8186 7 лет назад

    thank you sir

  • @karimkhan1312
    @karimkhan1312 10 лет назад

    please let me know when you display u r research-- please explain u r research in simple langague -- thank u - amarjeet -- advocate delhi high court --india