- girth
- Givens-Householder method
- Givens method
- Givens orthogonalization method
- Givens transformation
- Glejser's test
- Glimm method
- global analysis
- global analytic function
- global asymptotic stability
- global dimension of a ring
- global extreme value
- global extreme value
- global extremum
- global extremum of a function
- global field
- global flexibility matrix
- global maximum of a function
- global minimum of a function
- global minimum point
- global positioning system
- global section
- global stability
- global stability of complex ecosystems
- global stability of Gauss type predator-prey model