[Question] Mathematical models of Ethics

Hello, I am currently trying to find all the attempts at mathematical modeling of ethics (utilitarianism, axiologies, etc.) I have found several, do you have any ideas of keywords to type or even articles to suggest here ?

An example of a (simple) model is the notion of utility in the Von Neumann-Morgenstern Theorem, but I am interested in any attempt to formalize ethical situations.

More fundamentally, formalizing rules allowing to order the possible worlds (resulting from actions that an agent does or does not do).

A kind of mathematical model of the Must Be by ordering desired consequences (state of the world).

For the moment I found these, for example:

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