Polynomials in n variables subspaces and subrepresentations

PsychonautQQ
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Homework Statement


Trying to make sense of my notes...
"A polynomial in n variables on an n-dimensional F-vector space V is a formal sum of the form:
p(x)= ∑(C_i)x^β"

so basically can somebody help me understand how polynomials represent vector spaces? Whatever degree the polynomial is how many dimensions the vector space is? I'm quite confused.

Later it talks about decomposing a polynomial of degree k into subspaces spanned by monomials of a particular "type" that are labelled by partitions of k. Example:
(x^2)(y^2)z and x(y^2)(w^2) are both in P_(2,2,1,0)(x,y,z,w)

anyone have any idea what any of this means?



Homework Equations





The Attempt at a Solution

 
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PsychonautQQ said:

Homework Statement


Trying to make sense of my notes...
"A polynomial in n variables on an n-dimensional F-vector space V is a formal sum of the form:
p(x)= ∑(C_i)x^β"

so basically can somebody help me understand how polynomials represent vector spaces? Whatever degree the polynomial is how many dimensions the vector space is? I'm quite confused.

Later it talks about decomposing a polynomial of degree k into subspaces spanned by monomials of a particular "type" that are labelled by partitions of k. Example:
(x^2)(y^2)z and x(y^2)(w^2) are both in P_(2,2,1,0)(x,y,z,w)

anyone have any idea what any of this means?



Homework Equations





The Attempt at a Solution


What is the definition of a vector space?
 
There are two things I don't understand about this problem. First, when finding the nth root of a number, there should in theory be n solutions. However, the formula produces n+1 roots. Here is how. The first root is simply ##\left(r\right)^{\left(\frac{1}{n}\right)}##. Then you multiply this first root by n additional expressions given by the formula, as you go through k=0,1,...n-1. So you end up with n+1 roots, which cannot be correct. Let me illustrate what I mean. For this...
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