Take the fort, then take city. In a two-stage, two-party contest, victory in initial stage can provide an advantage final stage. We examine such momentum conflict scenarios and investigate how valuable it must be to avoid Pyrrhic victory. Our main finding is that although elasticity of effort—which we allow vary between two stages—does impact contestants’ effort levels, has no bearing on endoge...

Cognition and behavior exhibit biases consistent with future expectations, and some of these biases result in momentum-like effects and have been linked with the idea of momentum. These momentum-like effects include representational momentum, operational momentum, attentional momentum, behavioral momentum, and psychological momentum. Effects of numerous variables involving characteristics of th...

Exact solutions of Einstein’s equations in 2+1-dimensional anti-de Sitter space containing any number of black holes are described. In addition to the black holes these spacetimes can possess “internal” structure. Accordingly the generic spacetime of this type depends on a large number of parameters. Half of these can be taken as mass parameters, and the rest as the conjugate (angular) momenta....

We derive the wave function for N-dimensional hydrogen atom in the momentum representation with the phase factor using the generating function method and Hankel’s integral.