🌙
1:10
2 ай бұрын
💥
0:52
2 ай бұрын
🦈
0:43
2 ай бұрын
🌊
0:42
2 ай бұрын
⚡
0:49
2 ай бұрын
Bike on Wilson Avenue in NDG
5:18
Bike along Angrignon Park
3:44
7 ай бұрын
Tensors/tensor products demystified
1:04:15
Elliptic curves and modular forms
41:02
CFT 2015 02 26
1:21:19
9 жыл бұрын
Wei Xi Fan, "Galois Talk 7"
1:01:55
10 жыл бұрын
Wei Xi Fan, "Galois Talk 8"
59:19
11 жыл бұрын
Wei Xi Fan, "Galois Talk 6"
1:05:40
11 жыл бұрын
Wei Xi Fan, "Galois Talk 2"
1:12:09
11 жыл бұрын
Stone-Čech compactification
51:55
11 жыл бұрын
Wei Xi Fan, "Galois Talk 5"
58:48
11 жыл бұрын
Пікірлер
@nguyenkhoa71
@nguyenkhoa71 12 күн бұрын
New math vid when?
@riteshwar1300
@riteshwar1300 Ай бұрын
Why did you stop uploading lectures?
@walterrudin35
@walterrudin35 Ай бұрын
Why did you stop uploading lectures ?
@JustNow42
@JustNow42 Ай бұрын
I never understood why people start in the new univers they try to explain and expect those in the old univers to understand the lingo. If you start in the old univers people can develop the new univers themselves,
@litsky
@litsky Ай бұрын
Not sure what you mean. If you want a more primitive/computational (rather than conceptual) treatment of tensors there are plenty of other videos that do just that. My intention with this video was to fill that niche. I really dislike the habit of certain people who seem almost to "take offense" upon being exposed to a certain language or viewpoint. This is something that still plagues category theory today, and as we all recall the term "Gruppenpest", plagued representation theory in the past. I feel it's something that we as a community would really do well to drop, and learn instead to appreciate the merit and benefits of diverse perspectives...
@tighemcasey7589
@tighemcasey7589 2 ай бұрын
Best explanation I've seen
@callanmcgill
@callanmcgill 2 ай бұрын
Didn't realize you were posting again somehow. I love your old mathematics videos, what have you been up to since then?
@PhucNguyen-pf3qb
@PhucNguyen-pf3qb 2 ай бұрын
how is ur math life?
@mathiashwin
@mathiashwin 2 ай бұрын
You're a seriously great lecturer!!!!!
@naromsky
@naromsky 3 ай бұрын
👍
@rhodesmusicofficial
@rhodesmusicofficial 3 ай бұрын
I'm sure you get a lot of comments about your math stuff already, but if it's not touchy or anything can I ask if theres a place where I can find the third talk in Wei Xi Fan's Galois talks? KZbin says it's unavailable... They've been really helpful for me and trying to piece together what was proven/how it was proven in the third talk doesn't work very well- Anyways, really nice video, great quality and stability!
@litsky
@litsky 3 ай бұрын
The third video was on Wei Xi Fan's channel, which he appears to have deleted.
@rudypieplenbosch6752
@rudypieplenbosch6752 4 ай бұрын
I was following a channel on tensors, he kept going on and on, without really getting to a point ever, so i stopped it. Seems there is still a chance to understand tensors, at the moment I'm studying spinors, which are a bit less confusing. But you did clarify quite some things in this lecture already, of course i need zo watch it again. I like your passionate way of explaining, its very motivating.
@litsky
@litsky 4 ай бұрын
Spinors are far more complicated objects!
@rudypieplenbosch6752
@rudypieplenbosch6752 4 ай бұрын
@@litsky Really ?, then it must be because i found a good explanation on them, to me tensors are more confusing, but you gave already some good insights. Too bad it seems you stopped your explanation videos, you are very good at it.
@wdobni
@wdobni 4 ай бұрын
i couldn't follow the audio....its like he was talking from the bottom of a barrel
@remarljosephdamalerio8921
@remarljosephdamalerio8921 4 ай бұрын
I’m currently studying free structures. This video is really helpful! Thanks!
@fernandojackson7207
@fernandojackson7207 4 ай бұрын
Great presentation.I'm confused. Maybe because I haven't done Abstract Algebra in a while. Please be patient. that for a bilinear map you use F(x1,x2,..,axi+xi',.,xn ), at around 18:01 . Wouldn't a bilinear map be defined on a pair of vector spaces, and thus be defined on pairs(x1,x2), rather than on n-ples (x1,x2,..,xn)? Maybe in 32:41, you can define the map on the basis elements, the pure tensors f(x)w ; f in V*, w in W that are a basis for V*(x)W and extend by linearity to V*(x)W, i.e., to the "non-pure" elements?
@DarioOliveri
@DarioOliveri 4 ай бұрын
I need to compute a tensor product. Can I just say that given two tensors of size respectively 4x3x7x5 and 4x3x5x6 the output is a tensor of size 4x3x7x6 where we have basically 4x3 lined up products of matrices of size 7x5 and 5x6????? Is my understanding correct??
@Palisade5810
@Palisade5810 4 ай бұрын
7x6
@whocares1639
@whocares1639 5 ай бұрын
cool
@deltalima6703
@deltalima6703 5 ай бұрын
Its a shame I did not see this earlier. KZbin does people dirty serving up far more sketchy descriptions of this content instead of this. This is quite clear. I like how he does not use abbreviations. Its worth it to a general audience to just write "isomorphism", imho. Great presentation, just shares knowledge, not trying to look smart. 👍
@nickday3541
@nickday3541 5 ай бұрын
Very cool...
@BobOcksucker
@BobOcksucker 5 ай бұрын
why did you stop posting math
@davidgillies620
@davidgillies620 6 ай бұрын
Wish I'd seen this 35 years ago when the linear algebra portions of my physics degree were making my brain explode.
@aziz0x00
@aziz0x00 7 ай бұрын
👏👏👏👏👏👏👏
@aziz0x00
@aziz0x00 7 ай бұрын
👏👏👏👏👏👏👏👏👏👏👏👏👏
@visions269
@visions269 7 ай бұрын
Loathe based
@omargaber3122
@omargaber3122 7 ай бұрын
You are very rich, rich people don't need mathematics 😂
@omargaber3122
@omargaber3122 7 ай бұрын
What about mathematics?!😅
@omargaber3122
@omargaber3122 7 ай бұрын
Amazing
@clickaccept
@clickaccept 8 ай бұрын
Good presentation.
@bobtannous5464
@bobtannous5464 8 ай бұрын
very good presentation and it is very clear. congrats
@itsUntamed
@itsUntamed 9 ай бұрын
Would you ever consider re-publicing your old videos?
@M0rph1sm
@M0rph1sm 9 ай бұрын
With a finite basis for V, then maybe V iso Hom(k, V) implies Char(k) > 0 ?
@jasoncampbell1464
@jasoncampbell1464 9 ай бұрын
9:14 Intersecting the elliptic curve twice at P to get the tangent in a way that Q becomes P would be analogous to P + P rather than P + 0 though, right? I think the explanation makes sense if the intersection we talk about isn't the tangent but rather the reflection of P across the horizontal. As you drag the point Q to infinity, holding P fixed, the intersection approaches the reflection of P, so that when you reflect the intersection across the horizontal you get P back. Showing that P + Q, when Q is inf gives back P The fact that it bridges concepts so well while sounding so contrived makes me love it even more. What a hack 😆
@inscitia
@inscitia 9 ай бұрын
Nice presentation.
@qwerqwer2521
@qwerqwer2521 9 ай бұрын
that's pretty cool I guess
@farhadtowfiq6767
@farhadtowfiq6767 10 ай бұрын
This is very useful! Would you care to make a written summary to be used as a reference?
@xaviermachiavelli5236
@xaviermachiavelli5236 10 ай бұрын
That's true ₩% wow
@cccccuy
@cccccuy 11 ай бұрын
part 3😢
@mathematicsgurucool7949
@mathematicsgurucool7949 Ай бұрын
hi,Did you get anything related to part 3 notes or the video?
@cccccuy
@cccccuy 11 ай бұрын
why is part 3 private? Could you please make it public?
@octaviocarpinetti4326
@octaviocarpinetti4326 11 ай бұрын
I have a question. (Here V(x)V is V tensor V, I don't know how to make the symbol) You defined tensors such that they linearize bilinear maps. So, in the case of a bilinear form B:VxV->K. we have B corresponds to a linear transform L:V(x)V->K. But after, you said B is identified with an element of V*(x)V*. Why did we do linearization in the first place if we won't be using linear transformations? And also, how does that linear transformation L corresponds to the element of V*(x)V*? Is [V(x)V]*=V*(x)V*?
@AkamiChannel
@AkamiChannel 11 ай бұрын
This is incredible. Thank you.
@diribigal
@diribigal Жыл бұрын
Could you turn on youtube autogenerated captions for this? Even if it gets most of the math words wrong, it would help me follow the audio
@AllemandInstable
@AllemandInstable Жыл бұрын
7 years after his banger video on tensor product, the king uploaded once again hope you will someday make other videos on mathematics
@wizardite
@wizardite Жыл бұрын
Life of a burned-out magician.
@fightForYourExistence
@fightForYourExistence Жыл бұрын
🐈🐈
@fightForYourExistence
@fightForYourExistence Жыл бұрын
🐈
@hasanxnv
@hasanxnv Жыл бұрын
Hi there, where are you studying in canada? By any chance are you in UBC?
@omargaber3122
@omargaber3122 Жыл бұрын
Great
@mathematicsgurucool7949
@mathematicsgurucool7949 Ай бұрын
hi,have you seen part 3? of this series,maybe it wasn't made private that time?and could you share those notes,if possible?
@omargaber3122
@omargaber3122 Жыл бұрын
wonderful!!!!
@JustNow42
@JustNow42 Жыл бұрын
Demystified? Hmmm.
@no3339
@no3339 Жыл бұрын
I’m a mechanical engineering undergrad that has taken intro to Lin alg and currently complex analysis. I must admit that some of these explanations are above the scope of my knowledge and bit confusing. I think it would’ve helped if I had learned Lin alg and geometric algebra in high school. I’ll definitely have to come back to this video in a while to fully understand everything. Thanks for the explanation!