(psychology) The phenomenon of autistic and nonautistic people mutually failing to understand each other due to cognitive differences in expressing and processing emotion.

(quantum mechanics) The general name for a vast category of physical problems pertaining to the properties of microscopic systems made of many interacting particles.

Synonym of stable marriage problem

The problem of finding a stable matching between two equal-sized sets of elements, given an ordering of preferences for each element.

(graph theory) The problem of finding the longest possible induced path in a hypercube.

(marketing) The situation where a potential consumer looks for the best good or service in an unfamiliar, expensive, or infrequently-bought category, requiring a great deal of research.

The problem posed by ironic process theory, where (for example) explicitly trying not to think about a white bear makes one more likely to think of it.

A proposal that does not solve any problem or provide any value; or one that is intended to fill a need which does not really exist.

(computing theory) A problem of interprocess communication and synchronization where one process responds to requests from multiple other threads and sleeps when not doing so. In some cases this may lead to an undesirable state where components are waiting for each other despite being ready.

(calculus) the problem of solving a (set of) ordinary differential equations accompanied by the requirement that the function sought (and possibly also one or more of its derivatives), taken for some value, equals some other specific value; graphically, (for example) the problem of finding that antiderivative of some function that passes through a particular point