We learned how to construct the map ² (V) → VV that sends the simple wedge V₁ V₂ → V₁ V₂ V₂ V₁ - Please prove that this map is injective.

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter9: Systems Of Equations And Inequalities
Section: Chapter Questions
Problem 12T
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Can you please prove if it's injective. Thank you

We learned how to construct the map A² (V) →v v that sends the simple wedge
V₁ ^ V₂ → V₁ V₂ - V₂ V₁
Please prove that this map is injective.
Remark:
1. we can think of the exterior product ²(V) ≤ V V instead of as a quotient.
2. In our construction, there is a natural map V V→A²(V), since it is a quotient
space. Viewing the alternating maps as a subspace of the tensor product, there is no
natural map back into the subspace (in other words, there isn't a natural way to
make a bilinear map into an alternating map).
Transcribed Image Text:We learned how to construct the map A² (V) →v v that sends the simple wedge V₁ ^ V₂ → V₁ V₂ - V₂ V₁ Please prove that this map is injective. Remark: 1. we can think of the exterior product ²(V) ≤ V V instead of as a quotient. 2. In our construction, there is a natural map V V→A²(V), since it is a quotient space. Viewing the alternating maps as a subspace of the tensor product, there is no natural map back into the subspace (in other words, there isn't a natural way to make a bilinear map into an alternating map).
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