Messages

Published Mar. 16, 2018 9:53 AM

Proposition 5.2 is wrong as stated. New and corrected version is posted.

Sorry, but such happens.

 

G

Published Mar. 12, 2018 10:03 AM

As you will see,  I have posted Notes8 on the website. As usual, it is hastly written, so take it for what it is.

 

Notes7 is missing. It should have been about non-singular varieties, sorry for that. You have to read the corresponding section  in  Harsthorne's book.

 

G

Published Mar. 12, 2018 9:52 AM

The schedule is on the web.

 

Geir

Published Mar. 6, 2018 9:23 PM

New verdsion of Notes 6 on the web

G

Published Mar. 4, 2018 5:51 PM

I have very hastedly written up something about Bezout's theorem.

With a slightly different approach than I had on thursday. At least in my opion it is simpler–so hopefully you wil enjoy it!

 

Geir

Published Feb. 21, 2018 9:14 PM

As I promised during the lecture I have posted new versions of Notes4 and Notes5–as usual, take them for what they are!

 

Geir

Published Feb. 20, 2018 8:25 AM

Sorry for being late, but I have to much toi do these days.

On Thursday I plan to to

1) Hypersurfaces as in Nots 4

2) Linear projections

3) d-uple embeddings as in Hartshorne Exercise 2.12

4) Conics and the Veronese surface as in nots4

5) If time permits: Coordinate changes as in notes 4.

 

Geir

 

G

Published Feb. 19, 2018 11:50 AM

A very, very preliminary version of Nots5 on the web.

 

Geir

Published Feb. 11, 2018 11:07 PM

New version of Notes 4 on the web.

 

G

Published Feb. 8, 2018 4:34 PM

The exam will take place in the week just before Easter, that is between 19. and 23. of Mars. The precise time and day  depends on when sensor can come.

 

G

Published Feb. 8, 2018 4:32 PM

The exercise 3.3 in Notes 3 about the product was unintentionally too difficult; as usual, I was too quick. So I have split it in three and given hints. It is of course a little late, but better late than never. Even now it can challenging, but now it should be  possible!! Sorry!

I'll finish it next Tuesday.

So new version of Notes 3 on the web.

Published Feb. 7, 2018 10:01 AM

Exercises appended to list (with some repetitions)

From Hartshorn 1.4 (that is te one I spoke about during the lecture)

From Notes 3:

3.1, 3.3, 3.4, 3.5, 3.6, 3.7, 3.8, 3.10 and 3.11

 

G

Published Feb. 7, 2018 9:48 AM

A slightly improved version of Notes3 on the web.

G

Published Feb. 6, 2018 2:56 PM

As promised I have posted a very very preliminar verison of Notes4 on the website of the course. Take it for what it is, at least it indicates what I am going to do to morrow. Better version will follow!

 

Geir

Published Feb. 5, 2018 10:37 AM

A new version of Notes 3 (just small changes) on the web.

G

Published Jan. 31, 2018 9:27 AM

One coming Thursday we continue with the problems on the list from last week---I think we have enough there.

Anyhow, here are the new ones:

2.15, 2.16, 2.19,.2.20, 3.2, 3.3, 3.6 and 3.7

 

G

 

Published Jan. 29, 2018 5:03 PM

New version of Notes 3 on the web.

 

G

Published Jan. 29, 2018 2:43 PM

The lectures on Thursdays will take place from 10.15 to 14.00.

The new location is in the room "City of Gold" at Ullev?l stadion.

No rooms at  NAH or VB are free, so   the only possibility is  at he institute which p.t. is located at Ullev?l stadion.

The address is:  Sognsveien  77B at the second floor (=3. etasje).

 

Geir

Published Jan. 29, 2018 9:56 AM

The lectures on Thursdays will take place from 12.15 to 14.00.

The new location is in the room "City of Gold" at Ullev?l stadion.

No rooms at  NAH or VB are free, so   the only possibility is  at he institute which p.t. is located at Ullev?l stadion.

The address is:  Sognsveien  77B at the second floor (=3. etasje).

 

Geir

Published Jan. 26, 2018 10:32 AM

Have corrected some stupid errors.

More impoertanly, exercise 2.12 has been reformulated slightly. Hopefully it is now possible to do in a reasonable way.

 

G

Published Jan. 24, 2018 10:12 AM

I have posted a version of Notes 3.

It is very preliminary  and will change.  But since I'll soon start speaking about it, I hope you will benefit from it anyhow.

 

G

Published Jan. 24, 2018 9:51 AM

On Thursday Jan 25 we continue with the exercises on the list from last.

New ones for the (near) future:

All from notes 2:

2.4, 2.5, 2.9, 2.10, 2.11, 2.12, 2.13 and  2.14

 

Geir

Published Jan. 23, 2018 12:51 PM

Have posted a new version of Notes 2 with some examples added, and some changs.

 

G

Published Jan. 17, 2018 4:03 PM

Stupid error at the bottom of page 2 in Notes1 is corrected.

G

Published Jan. 17, 2018 8:49 AM

Exercises for Thursday Jan 18. 

From the book: 1.1, 1.2 and 1.3

From Notes 1: 1.1(page 6),  1.4, 1.5, 1.6, 1.9, 1.10 and 1.11

 Sorry for being late, but due to the heavy  snowfall I was without net-connection yesterday

Geir