On when a topologically simple semigroup is simple

Eliciting Risk Preferences: When is Simple Better?

We study the estimation of risk aversion preferences with experimental data. We focus on the trade-offs that arise when choosing between two different elicitation methods that have different degrees of difficulty for subjects. We analyze how and when the simpler, but coarser, elicitation method may be preferred to the more complex, but finer, one. Subjects in the more complex task exhibit noisi...

Topologically left invariant means on semigroup algebras

Let M(S) be the Banach algebra of all bounded regular Borel measures on a locally compact Hausdorff semitopological semigroup S with variation norm and convolution as multiplication. We obtain necessary and sufficient conditions for M(S)∗ to have a topologically left invariant mean.

Topologically Left Invariant Mean on Dual Semigroup Algebras

TOPOLOGICALLY STATIONARY LOCALLY COMPACT SEMIGROUP AND AMENABILITY

In this paper, we investigate the concept of topological stationary for locally compact semigroups. In [4], T. Mitchell proved that a semigroup S is right stationary if and only if m(S) has a left Invariant mean. In this case, the set of values ?(f) where ? runs over all left invariant means on m(S) coincides with the set of constants in the weak* closed convex hull of right translates of f. Th...

When Kicking the Doctor Is Good—A Simple Reflex

Humans and animals have reflexes to help protect them from danger. Reflexes are unconscious responses, which means they are automatic and do not require the brain to create the action. There are many different types of reflexes, but the most basic is called a simple reflex. A simple reflex contains only one space where information in the spinal cord travels between two nerve cells, called neuro...