Monodromy of a Class of Logarithmic Connections on an Elliptic Curve

The logarithmic connections studied in the paper are direct images of regular connections on line bundles over genus-2 double covers of the elliptic curve. We give an explicit parametrization of all such connections, determine their monodromy, differential Galois group and the underlying rank-2 vector bundle. The latter is described in terms of elementary transforms. The question of its (semi)-stability is addressed.Comment: Published in SIGMA (Symmetry, Integrability and Geometry: Methods and Applications) at http://www.emis.de/journals/SIGMA

Phytoplankton seasonal distribution from SeaWiFS data in the Agulhas Current system

The interocean conduit for warm Indian Ocean water into the Atlantic Ocean is the Agulhas system which plays an important role in maintaining the global thermohaline circulation. The frontal system formed by the Agulhas Return Current (ARC) and the Subtropical Convergence (STC) is also a region of intense mesoscale activity presenting enhanced levels of biological production and chlorophyll a. We jointly analyzed three different satellite data sets to relate the remotely sensed distribution of phytoplankton (SeaWiFS ocean color data) to the dynamical environment (Topex/Poséidon-ERS sea level anomalies-SLA- and sea-surface temperature-SST-) to gain insight into the seasonal behavior of the Agulhas Current system. We used a wavelet analysis to retrieve the characteristic wavelengths of the ARC and STC associated to their meandering. By meridionally averaging (between 15- 45E) the two-dimensional power Hovmöller of each signal (Chla, SLA, and SST), we obtained a seasonal average variance for Chla, SLA and SST as a function of latitude. Within the double frontal Agulhas and Subtropical frontal system, an extended temporal maximum in chlorophyll a concentration is observed in spring-summer-fall and a well-marked minimum occurs in winter, in phase opposition with the southwest Indian Ocean subtropical gyre north of the frontal system. Seasonal changes in strength of cross-frontal mixing with the subtropical gyre, in density strength of the juxtaposed fronts, and in mixed-layer depth and light availability seem the most likely explanations for the observed spatial and seasonal variability of the chlorophyll a distribution

Reciprocating Compressors 101

Short Cours

PERBANDINGAN KELAS KATA BAHASA INDONESIA DENGAN BAHASA MELAYU THAILAND SELATAN

Comparison of Indonesian word classes with Southern Thai Malay language is a problem, namely how to compare Indonesian word classes with Southern Thai and Malay languages ​​so that there will be no errors in the use of said classes. The purpose of this study is to describe the similarities, differences and comparisons of Indonesian word classes with Southern Thai Malay. The type of research used in this study is a qualitative descriptive study. The results of the study are a comparison of Indonesian word classes with Southern Thai Malay language can be expressed in the same class of words, namely three word classes: Indonesian verbs with verbs Southern Thai Malay, Indonesian adjectives with the adjectives of South Thai Malay language and Indonesian verbs with language Southern Thai Malay. The difference between Indonesian words and Southern Thai Malay can be distinguished as noun, Pronomina and Numeralia words, adverb words can be found in Indonesian only, while South Thai Malay words can be classed as names