Archives Excursion

Excursion Theory Revisited

Excursions from a fixed point b are studied in the framework of a general Borel right process X, with a fixed excessive measure m serving as background measure; such a measure always exists if b is accessible from every point of the state space of X. In this context the left-continuous moderate Markov dual process b X arises naturally and plays an important role. This allows the basic quantitie...

Crystallographic excursion in superspace

After studying more than 100 different samples of calaverite Au1-pAgpTe2 (p < 0.15) three famous mineralogists declared in a well documented 1931 publication the invalidity of the law of rational indices. What could lead them to draw such an extreme conclusion from the observation law of Hauÿ dating from more than two centuries? Their observations remained unexplained for the next forty years. ...

Laschamp Excursion at Mono Lake?

The Laschamp Geomagnetic Excursion (ca. 41 ka) and a related increase of cosmogenic nuclides provides a global tie point among sedimentary and ice core records. In the Wilson Creek Formation, Mono Lake, California, the Laschamp Excursion has not been recognized although the so-called Mono Lake excursion was found in the section with an estimated age of about 28 14C ka. However, our reevaluation...

An excursion into geometric analysis

Archives – draft

The email archives that people accumulate are a dense, complex, and highly personal record of their past interactions. As email becomes increasingly ubiquitous, these include not only their work interactions, but also their relationships with family members, friends, doctors, teachers, etc. However, current mail clients do little to support these archives beyond providing a basic filing and sea...