A monkey's taste for chameleon salad

A Salad of Cocycles

We study the centraliser of locally compact group extensions of er-godic probability preserving transformations. New methods establishing ergodicity of group extensions are introduced, and new examples of squashable and non-coalescent group extensions are constructed. Smooth versions of some of the constructions are also given. §0 Introduction Let T be an ergodic probability preserving transfor...

Anti-N-Methyl-D-Aspartate-Receptor Encephalitis, a Challenge for Neurologists or a Chameleon for Psychiatrists: A Case Report

Anti-N-Methyl-D-Aspartate-Receptor (NMDA-R) encephalitis is a new autoimmune disorder, often paraneoplastic in nature, presenting with complex neuropsychiatric symptoms. Diagnosed serologically, this disorder is often responsive to immunosuppressant treatment. We here in report the case of a 56-year-old man with anti NMDA-R encephalitis presenting initially with disorientation and hallucinati...

New Regions for a Chameleon to Hide

We show that inclusion of an extremely small quartic coupling constant in the potential for a nearly massless scalar field greatly increases the experimentally allowed region for the mass term and the coupling of the field to matter.

Fruit Salad

Paul Erdős liked fruit salad. I mixed this one for him from ingredients obtained while working on some of his problems. He was pleased by it and carried it to several places to offer to others as well. It is very sad that I have to add to the manuscript: dedicated to his memory. 1. Nearly bipartite graphs. Szentendre, 1994. Although we are in the shade, the summer afternoon is very hot, the wat...

A Salad of Block Ciphers