- arrow diagram
- arrow function
- arrowhead
- arrowhead curve
- Arrow-Hurwicz-Uzawa gradient method
- Arrow-impossibility theorem
- Arrow, K.J.
- Arrow paradox
- AR-sequence (= Auslander-Reiten sequence)
- art-gallery theorem
- articulation
- articulation point
- articulation set
- articulation vertex
- artificial
- artificial basis
- artificial compression
- artificial constraint
- artificial constraint technique
- artificial intelligence
- artificial life
- artificial variable
- artificial variable method
- artificial viscosity
- artificial viscosity method