: Frequently recommended for the UPSC Mathematics Optional and CSIR-NET due to its rigorous proof-based approach.
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Matrix representation of linear transformations and Change of Basis. Similarity and Determinants of linear transformations. Trace of a matrix and transformations. Chapter 3: Linear Functionals and Dual Spaces Dual spaces and Dual bases. Reflexivity and Annihilators. Adjoint/Transpose of a linear transformation. Chapter 4: Eigenvalues and Eigenvectors Characteristic equations and roots. Cayley-Hamilton Theorem (Verification and applications). Invariant direct sum decompositions and Projections. Chapter 5: Inner Product Spaces Inner products, Orthogonality, and Orthonormality. Gram-Schmidt Orthogonalization Process. Cauchy-Schwarz and Bessel's inequalities. Unitary and Normal Operators. Chapter 6: Bilinear and Quadratic Forms Bilinear forms and their matrix representation. Quadratic forms and reduction. Purchase Options : Frequently recommended for the UPSC Mathematics Optional
While various sites like Scribd and Academia.edu host fragments or older versions of the document, it is a copyrighted publication typically available through academic retailers. Introduction to Linear Algebra - BYJU'S Chapter 3: Linear Functionals and Dual Spaces Dual