Bellman

• Carl Michael Bellman was a Swedish poet and composer.
• Richard Bellman was an American mathematician.

In Lewis Carroll's poem The Hunting of the Snark, the Bellman is the leader of the Snark hunting trip. He is a fine speaker, a handsome and inspiring man, but a rather poor sailor.

This was charming, no doubt: but they shortly found out

That the Captain they trusted so well

Had only one notion for crossing the ocean,

And that was to tinkle his bell.

A bellman can also be a name for a bellhop .

In relation with Reinforcement_learning, the Bellman equation expresses the value function in relation with an observation of itself and the reward.

V(s) = E[R + gammaV(s')]

The Hamilton-Jacobi-Bellman equation gives a value function in continuous time and space.