# What is a good book to study linear algebra?

I’m looking for a book to learn Algebra. The programme is the following. The units marked with a $\star$ are the ones I’m most interested in (in the sense I know nothing about) and those with a $\circ$ are those which I’m mildly comfortable with. The ones that aren’t marked shouldn’t be of importance. Any important topic inside a unite will be boldfaced.

U1: Vector Algebra.
Points in the $n$-dimensional space. Vectors. Scalar product. Norm. Lines and planes. Vectorial product.

$\circ$ U2: Vector Spaces.
Definition. Subspaces. Linear independence. Linear combination. Generating systems. Basis. Dimesion. Sum and intersection of subspaces. Direct sum. Spaces with inner products.

$\circ$ U3: Matrices and determinants.
Matrix Spaces. Sum and product of matrices. Linear ecuations. Gauss-Jordan elimination. Range. Roché Frobenius Theorem. Determinants. Properties. Determinant of a product. Determinants and inverses.

$\star$ U4: Linear transformations.
Definition. Nucleus and image. Monomorphisms, epimorphisms and isomorphisms. Composition of linear transformations. Inverse linear tranforms.

U5: Complex numbers and polynomials.
Complex numbers. Operations. Binomial and trigonometric form. De Möivre’s Theorem.
Solving equations. Polynomials. Degree. Operations. Roots. Remainder theorem. Factorial decomposition. FTA. Lagrange interpolation.

$\star$ U6: Linear transformations and matrices.
Matrix of a linear transformation. Matrix of the composition. Matrix of the inverse. Base changes.

$\star$ U7: Eigen values and eigen vectors
Eigen values and eigen vectors. Characteristc polynomial. Aplications. Invariant subspaces. Diagonalization.

To let you know, I own a copy of Apostol’s Calculus $\mathrm I$ which has some of those topics, precisely:

• Linear Spaces
• Linear Transformations and Matrices.

I also have a copy of Apostol’s second book of Calc $\mathrm II$which continues with

• Determinants
• Eigenvalues and eigenvectors
• Eigenvalues of operators in Euclidean spaces.

I was reccommended Linear Algebra by Armando Rojo and have Linear Algebra by Carlos Ivorra, which seems quite a good text.

What do you reccomend?

## Answer

“Linear Algebra Done Right” by Sheldon Axler is an excellent book.

Attribution
Source : Link , Question Author : Community , Answer Author :
Amihai Zivan