Counting Elements in Hom(V,W) for Finite Linear Transformations

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SUMMARY

The discussion centers on determining the number of elements in the set Hom(V,W), which represents all linear transformations from the finite-dimensional vector space V to W over the finite field F, specifically Zp for a prime p. Given that both V and W are n-dimensional over F, the conclusion is that the number of linear transformations is p^(n^2). This is derived from the fact that the dimension of Hom(V,W) is n^2, leading to the formula for the number of linear transformations.

PREREQUISITES
  • Understanding of finite fields, specifically Zp.
  • Knowledge of linear algebra concepts, particularly vector spaces and linear transformations.
  • Familiarity with the dimension theorem for vector spaces.
  • Basic proficiency in mathematical proofs and transformations.
NEXT STEPS
  • Study the properties of finite fields, focusing on Zp and its applications in linear algebra.
  • Learn about the dimension theorem and its implications for Hom spaces in linear algebra.
  • Explore the concept of linear transformations in greater depth, including examples and applications.
  • Investigate the relationship between vector space dimensions and the structure of linear transformations.
USEFUL FOR

Students of linear algebra, mathematicians interested in finite fields, and educators teaching vector space theory will benefit from this discussion.

JaysFan31

Homework Statement


The set Hom(V,W) is the collection of all linear transformations from the F-space V to the F-space W. Suppose that F,V, and W are all finite. Suppose that F=Zp for some prime p, that V is n-dimensional over F, and W is n-dimensional over F. How many elements does Hom(V,W) have?

Homework Equations


Nothing.

The Attempt at a Solution


I'm pretty sure it's p^n.

I have the proof of dimV=m and dimU=n meaning dimHom(V,U)=mn. How do I transform this proof to the one I want?
 
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Would the answer still just be n^2?
 

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