What is the defect of a linear transformation

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SUMMARY

The defect of a linear transformation refers to a defective matrix that lacks a complete basis of eigenvectors. Specifically, the defect is defined as the codimension of the transformation's range. In finite-dimensional spaces, the rank theorem establishes that the defect is equivalent to the nullity of the operator, which is the dimension of its kernel. Understanding these concepts is essential for analyzing the properties of linear transformations in linear algebra.

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  • Linear algebra fundamentals
  • Understanding of eigenvectors and eigenvalues
  • Familiarity with the rank-nullity theorem
  • Concept of matrix representation of linear operators
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  • Study the rank-nullity theorem in detail
  • Explore eigenvector and eigenvalue calculations for matrices
  • Learn about defective matrices and their implications
  • Investigate applications of linear transformations in various fields
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Students of linear algebra, mathematicians, and anyone involved in the study of linear transformations and their properties.

gruba
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Homework Statement


Question: What is the defect of a linear transformation?
2. The attempt at a solution
A defective matrix (of a linear transformation) is a matrix that doesn't have a complete basis of eigenvectors.
Does this mean that linearly dependent vectors of a matrix are called defects?
 
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In general, the defect of a linear operator is the codimension of its range. For operators on finite dimensional spaces (represented by matrices), the rank theorem implies that the defect equals the nullity of the operator, where the latter is the dimension of the kernel.
 
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