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repositories = "Document Server@UHasselt"
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A degree inequality for Lie algebras with a regular Poisson semi-center
Description :
For Lie algebras whose Poisson semi-center is a polynomial ring we give a bound for the sum of the degrees of the generating semi-invariants. This bound was previously known in many special cases. (C) 2009 Elsevier Inc. All rights reserved.
Repository :
Document Server@UHasselt
Language(s) :
English
Titrating Theileria parva: Single stocks against combination of stocks
Author(s) :
Speybroeck, Niko
,
Marcotty, Tanguy
,
AERTS, Marc
,
Dolan, Tom
,
Williams, Brian
,
Lauer, Jeremy
,
MOLENBERGHS, Geert
,
BURZYKOWSKI, Tomasz
Description :
Theileria parva is the causative agent of East Coast fever (ECF), an important cattle disease in East and Central Africa. One of the methods for control of ECF is 'infection and treatment', a procedure in which an animal is infected with the live parasite and at the same time treated with a long-act...
Repository :
Document Server@UHasselt
Language(s) :
English
Singular perturbations and vanishing passage through a turning point
Description :
The paper deals with planar slow-fast cycles containing a unique generic turning point. We address the question on how to study canard cycles when the slow dynamics call be singular at the turning point. We more precisely accept a generic saddle-node bifurcation to pass through the turning point. It...
Repository :
Document Server@UHasselt
Language(s) :
English
Local analytic reduction of families of diffeomorphisms
Description :
We study local analytic simplification of families of analytic maps near a hyperbolic fixed point. A particularly important application of the main result concerns families of hyperbolic saddles, where Siegel's theorem is too fragile, at least in the analytic category. By relaxing on the formal norm...
Repository :
Document Server@UHasselt
Language(s) :
English
Hochschild cohomology and Atiyah classes
Description :
In this paper we prove that on a smooth algebraic variety the HKR-morphism twisted by the square root of the Todd genus gives an isomorphism between the sheaf of poly-vector fields and the sheaf of poly-differential operators, both considered as derived Gerstenhaber algebras. In particular we obtain...
Repository :
Document Server@UHasselt
Language(s) :
English
Molecular and physiological analysis of three Pseudomonas aeruginosa phages belonging to the "N4-like viruses"
Author(s) :
Ceyssens, Pieter-Jan
,
Brabban, Andrew
,
Rogge, Larissa
,
Lewis, Matthew Spooner
,
Pickard, Derek
,
Goulding, David
Description :
We present a detailed analysis of the genome architecture, structural proteome and infection-related properties of three Pseudomonas phages, designated LUZ7, LIT1 and PEV2 These podoviruses encapsulate 72 5 to 749 kb genomes and lyse their host after 25 min aerobic infection PEV2 can successfully in...
Repository :
Document Server@UHasselt
Language(s) :
English
Cocommutative Calabi-Yau Hopf algebras and deformations
Description :
The Calabi-Yau property of cocommutative Hopf algebras is discussed by using the homological integral, a recently introduced tool for studying infinite dimensional AS-Gorenstein Hopf algebras. It is shown that the skew-group algebra of a universal enveloping algebra of a finite dimensional Lie algeb...
Repository :
Document Server@UHasselt
Language(s) :
English
Algebraic quantum hypergroups
Description :
An algebraic quantum group is a regular multiplier Hopf algebra with integrals. In this paper we will develop a theory of algebraic quantum hypergroups. It is very similar to the theory of algebraic quantum groups, except that the comultiplication is no longer assumed to be a homomorphism. We still ...
Repository :
Document Server@UHasselt
Language(s) :
English
Slow-fast Bogdanov-Takens bifurcations
Description :
In this paper we study perturbations from planar vector fields having a line of zeros and representing a singular limit of Bogdanov-Takens (BT) bifurcations. We introduce, among other precise definitions, the notion of slow-fast BT-bifurcation and we provide a complete study of the bifurcation diagr...
Repository :
Document Server@UHasselt
Language(s) :
English
Trajectory databases: data models, uncertainty and complete query languages
Description :
Moving ob jects produce tra jectories. We describe a data model for tra jectories and
tra jectory samples and an efficient way of modeling uncertainty via beads for tra jec-
tory samples. We study transformations of the ambient space for which important
physical properties of tra jectories, such as...
Repository :
Document Server@UHasselt
Language(s) :
English