user66288

Dear all, this question of mine does not receive much attention, only one upvote, no comments, no answer, for already five days. I would like to interchange / gather some ideas on the issue. Are there any experts in quantum cohomology out there which can help me? I would be very happy to have some discussion. Thanks.

@BenLim Yes, this is the definition of a parabolic subgroup equivalent to the fact that it contains a Borel subgroup. The point here was that Q is not necessarily parabolic. The intersection P\cap Q is also not necessary parabolic. So you need some extra arguments to see this.

@dhy Thanks a lot. Actually perfect. I imagined that it must be "simple", but was not familiar enough with standard implications from general morphism theory.

There is also a comment to the question by myself, which you should take under consideration.

Dear all, I am concerned with a question which I posted on MSE, but didn't received much attention. So I thought maybe one of you might be able to help me out. Please follow the link math.stackexchange.com/questions/1554739/…

@pro It is actually a question about isotropic Grassmannians in even dimensions - the objects concerned are quite "elementary" - so it should not be above your pay grade. Please help. Maybe you can explain what matrices are in the Weyl group of type D_p without going into the details of Tamvakis paper. (As abstract group it is barred permutations but what matrices do they correspond to?)

you like science fiction, right

what's going on

hey user36034

I also don't understand why the modification of \varphi to \tilde{\varphi} is necessary...

Maybe an expert can help me. Thank's

image give us the "right" matrices. (I guess there is a choice of basis - called standard basis - involved in the business, so that the matrix of the quadratic form Q is of the form with ones on the second diagonal.)

bye for now

i will change this mistake everywhere in my document... later on

it is just that we are used to say: to + infinitve, but even in phrases like: I am looking forward to hearing from you, it seems to break the rule

I agree @La

ok i see

but does it really sounds wrong in your ears, when i use "say"

since in my language i would use the infinitive in this situation, therefore the confusion

online research shows me that people usually use "saying" but still I am unsure if maybe the other version is also allowed.

Thank you for an answer!

Hi ELU users, there is one issue: i have a sentence like this: the claim is equivalent to say that (some mathematical statement like: A is dense in B). Now my question is: is this correct, or do I have to use "equivalent to saying" instead of "equivalent to say" or is both accepted?

Hi everyone

I need to learn it alone.

Please keep in mind that I cannot afford a teacher.

Then tell me how to learn it properly

I do.

I am curious.

I learn it like that.

Well you can, just tell me some Arabic stuff.

Just to start with.

Ana User66288.

My goal is to understand arabic people.

@inɒzɘmɒЯ.A.M

How does it then work?

(Your name is too comlpicated to add.)

Really, teach me a few arabic words please. I am curious

depends on what

is anyone here who speaks arabic

is it allowed to use languages different from english in this room, what are the rules, what can you hear

well, i am just intersted

thats very few, enough for a small device

only one letter and one question mark

you are on a small device too tchrist

i need help to learn languages

what languages do you know except english

is there any?

what is the q&a site corresponding to this chat

hi people