MAT802: Numerical Methods for Elliptic and Parabolic Differential Equations
- Shared screen with speaker view

Nis-Erik Bohne

16:13

yes but almost everywhere

Bogdan Raonic

18:33

How can we speak about psi(x)?

Nis-Erik Bohne

26:46

1 a.e

Nis-Erik Bohne

26:56

correction

Nis-Erik Bohne

27:08

-1,1

Florian Spicher

39:19

How wrong is this intuition? I mean, do most weak derivatives coincide with piecewise derivatives?

Nis-Erik Bohne

39:49

0 a.e

Nis-Erik Bohne

44:44

1

Carina Capol

45:52

-1

Loris Pedrelli/Buck

01:12:22

here differentiable means in a weak sense?

Nis-Erik Bohne

01:13:34

Question: if u' and u'' weakly exist dose this also imply that u'' is the weak differental of u'?

Loris Pedrelli/Buck

01:13:35

Ok thanks

Nis-Erik Bohne

01:14:33

thank you

Nis-Erik Bohne

01:22:01

ei

Bogdan Raonic

01:22:10

Why is ^2 inside?

Loris Pedrelli/Buck

01:23:44

just the partial derivative?

Bogdan Raonic

01:23:47

Partial derivative?

Loris Pedrelli/Buck

01:23:50

in direction i

Loris Pedrelli/Buck

01:25:46

The norm of the gradient

Bogdan Raonic

01:30:26

No

Loris Pedrelli/Buck

01:30:41

Nope

Loris Pedrelli/Buck

01:30:56

A constant u

Bogdan Raonic

01:30:59

Take a constant function

Bogdan Raonic

01:35:19

Which are not in Lp?

Nis-Erik Bohne

01:35:24

functions that go to infinity at the boundary

Loris Pedrelli/Buck

01:35:26

the non integrable ones?

Bogdan Raonic

01:35:27

Or whose derivatives are not in Lp

Nis-Erik Bohne

01:49:43

have a nice weekend

Nirushan Arumugam

01:49:48

thank you as well!

Sibylle Schalbetter

01:49:53

thanks you too

Aurel Zürcher

01:49:54

Thank you

Nirushan Arumugam

01:49:56

see you next week :)

Mark Woolley

01:49:57

knockknockknockknockknock

Severina Haas

01:50:01

thank you too