Math Problem Statement

Sea G = GL2(R) el grupo general lineal y H = {    1 n 0 1    |n ∈ Z}, pruebe que: a) H es subgrupo de G. b) H es un subgrupo cíclico de G

Solution

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Math Problem Analysis

Mathematical Concepts

Group Theory
Linear Algebra
Matrix Multiplication
Cyclic Subgroups

Formulas

Matrix multiplication: A * B = [1 n | 0 1] * [1 m | 0 1] = [1 n+m | 0 1]
Inverse of a matrix: A^-1 = [1 -n | 0 1]

Theorems

Subgroup test: Closure, identity, and inverses
Cyclic subgroup definition: A group is cyclic if all elements can be written as powers of a single element

Suitable Grade Level

Undergraduate (First Year)