Free Mathematics Books

Lecture Notes on Abstract Algebra by Aditya Sengupta

This note explains basic concepts like sets and relations and progressing to advanced topics such as group theory, rings, and fields also it covers fundamental theorems like Lagranges theorem and explores key concepts like permutations and quotient groups.

Author(s): Aditya Sengupta

86 Pages

Abstract Algebra by Paul Garrett

This note on Abstract Algebra by Paul Garrett covers the topics like The integers, Groups, The players: rings, fields , Commutative rings , Linear Algebra :Dimension, Fields, Some Irreducible Polynomials, Cyclotomic polynomials, Finite fields, Modules over PIDs, Finitely generated modules, Polynomials over UFDs, Symmetric groups, Naive Set Theory, Symmetric polynomials, Eisenstein criterion, Vandermonde determinant, Cyclotomic polynomials, Roots of unity, Cyclotomic, Primes in arithmetic progressions, Galois theory, Solving equations by radicals, Eigen vectors, Spectral Theorems, Duals, naturality, bilinear forms, Determinants, Tensor products and Exterior powers.

Author(s): Paul Garrett

412 Pages

Introduction to Algebraic Geometry by Emilia Mezzetti

This note covers introduction, Affine and projective space, Algebraic sets, Examples of algebraic sets, The ideal of an algebraic set and the Hilbert Nullstellensatz, The projective closure of an affine algebraic set, Irreducible components, Dimension, Regular and rational functions, Regular and rational maps, Products of quasi projective varieties, The dimension of an intersection, Complete varieties and the tangent space.

Author(s): Emilia Mezzetti

66 Pages

Lecture Notes for Algebraic geometry

This note covers notation, What is algebraic geometry, Affine algebraic varieties, Projective algebraic varieties, Sheaves, ringed spaces and affine algebraic varieties, Algebraic varieties, Morphisms, Products, Dimension, The fibres of a morphism, Sheaves of modules, Hilbert polynomials and bezouts theorem, Schemes, Products of preschemes, Relative differentials, Cartier divisors, Rational equivalence and the chow group, Proper push forward and flat pull back, Chern classes of line bundles and chern classes of vector bundles.

Author(s): Leonardo Constantin Mihalcea

132 Pages