How to classify second order PDE

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Apologies for the frozen head shot. The file got corrupted.
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The man doesn't even have to move to do maths, amazing.

Duxaization
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I'm instructing PDEs recently. This series of videos gives me an idea of where the students might have difficulties with and allow me to lecture in a more understandable way. Thank you, Chris. 

huisun
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Just two words: "Thank you"
Best video ive watched about the topic

mrlooken
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I have learnt a lot. It is a nice presentation ever

mfanocharles
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Thank you so much!! You really helped me understand the topics. Will keep coming back to your explanations.

maxlopalegz
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@ 4:26 is the similarity between the equations the only reason for calling PDEs elliptic, hyperbolic and parabolic??

LM__
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Sir.. You are Teaching is outstanding.... Where do you teach 😁

vikramaditya
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Thank you very much for this helpful and insightful video. Highly appreciate this.

AJ-etvf
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Thank you, Chris. You might have explained the last portion little bit clearer, otherwise its awesome video.

MrAndrew
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Is there a video to help understand how to classify pdes as linear, semi-linear, quasi-linear and non-linear? 

Naomi-kezh
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Hi Chris, I saw a few videos you uploaded and they really helped but I'm stuck at applying this discriminant technique to pdes defined in 3-dimensional and 4-dimensional regions...I might be doing it wrongly though...I would love it if you could classify these pdes1) Uxx + 13Uyy + 13Uzz + Uwz + 4Uxy + 24Uyz + 4Uzw = 02) (y²-z²)Uxx + (z²-x²)Uyy + (x²-y²)Uzz=f(x, y, z, Ux, Uy, Uz)And could you please upload a video on how to classify pdes according to the eigen values of the coefficient matrix Aij??....This is because, I came across some pdes that had different classifications from these two different

lifredamil
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Thanks! Nice video, concise and easy to be understood.

usbusb
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thankyou sir. i understood it very wel. but i think the regions for y<1/x and y>1/x are not propery mapped.

amritkshetri
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Why do you put the right hand side of eqn. 7 equal to 0? I mean, it is allowed to be any constant, isn't it?

frankbrandse
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Do you have any videos where you elaborate on why you use this classification?

infinity-and-regards
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can you please explain why do we need to classify 2nd order PDEs. It doesnt help in solving them. So why do we need the classification. What do we gain from such classification, there must have been a reason like for example same type of pdes always give same physical meaning or something like that.

harishsingh
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can someone please describe the components of the equation please ?

bansishah
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Tnks bro. We need more people lyk u in this world

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