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Search Results: 1 - 10 of 146 matches for " Fani Petalidou "
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On twisted contact groupoids and on integration of twisted Jacobi manifolds
Fani Petalidou
Mathematics , 2009,
Abstract: We introduce the concept of twisted contact groupoids, as an extension either of contact groupoids or of twisted symplectic ones, and we discuss the integration of twisted Jacobi manifolds by twisted contact groupoids. We also investigate the very close relationships which link homogeneous twisted Poisson manifolds with twisted Jacobi manifolds and homogeneous twisted symplectic groupoids with twisted contact ones. Some examples for each structure are presented.
On the geometric quantization of twisted Poisson manifolds
Fani Petalidou
Mathematics , 2007, DOI: 10.1063/1.2759833
Abstract: We study the geometric quantization process for twisted Poisson manifolds. First, we introduce the notion of Lichnerowicz-twisted Poisson cohomology for twisted Poisson manifolds and we use it in order to characterize their prequantization bundles and to establish their prequantization condition. Next, we introduce a polarization and we discuss the quantization problem. In each step, several examples are presented.
On the symplectic realization of Poisson-Nijenhuis manifolds
Fani Petalidou
Mathematics , 2015,
Abstract: We consider the problem of the symplectic realization of a Poisson-Nijenhuis manifold. By applying a new technique developed by M. Crainic and I. Marcut for the study of the above problem in the case of a Poisson manifold, we establish the existence, under a condition, of a nondegenerate Poisson-Nijenhuis structure on an open neighborhood of the zero-section of the cotangent bundle of the manifold, which symplectizes the initial structure. Additionally, we present some examples.
On the liouville intergrability of Lotka-Volterra systems
Pantelis A. Damianou,Fani Petalidou
Frontiers in Physics , 2014, DOI: 10.3389/fphy.2014.00050
Abstract: This paper is a review on some recent works on the Liouville integrability of a large class of Lotka-Volterra systems.
Poisson brackets with prescribed Casimirs
Pantelis A. Damianou,Fani Petalidou
Mathematics , 2011,
Abstract: We consider the problem of constructing Poisson brackets on smooth manifolds $M$ with prescribed Casimir functions. If $M$ is of even dimension, we achieve our construction by considering a suitable almost symplectic structure on $M$, while, in the case where $M$ is of odd dimension, our objective is achieved by using a convenient almost cosymplectic structure. Several examples and applications are presented.
Dirac structures for generalized Courant and Courant algebroids
Fani Petalidou,Joana M. Nunes da Costa
Mathematics , 2005,
Abstract: We establish some fundamental relations between Dirac subbundles $L$ for the generalized Courant algebroid $(A\oplus A^{\ast}, \phi+W)$ over a differentiable manifold $M$ and the associated Dirac subbubndles $\tilde{L}$ for the corresponding Courant algebroid $\tilde{A} \oplus \tilde{A}^{\ast}$ over $M\times \R$.
Reduction of Jacobi manifolds via Dirac structures theory
Fani Petalidou,Joana M. Nunes da Costa
Mathematics , 2004,
Abstract: We first recall some basic definitions and facts about Jacobi manifolds, generalized Lie bialgebroids, generalized Courant algebroids and Dirac structures. We establish an one-one correspondence between reducible Dirac structures of the generalized Lie bialgebroid of a Jacobi manifold $(M,\Lambda,E)$ for which 1 is an admissible function and Jacobi quotient manifolds of $M$. We study Jacobi reductions from the point of view of Dirac structures theory and we present some examples and applications.
enske v srednje olskem managementu = Women in Secondary Education Management
Fani Mavric
Management , 2006,
Abstract: Management theory has developed a great deal since the beginning of management, and has thus not only reflected the management practice but also influenced it. It was not until recently that it has actually started also to include the analysis of the position of women in management. Women with their typical characteristics – including a subtle combination of responsibility, sensibility, persistence and feminine sophistication – have become an inevitable part of today’s economic and social life. In this paper we decided to research the field of education in terms of women working as headmistresses/principals. While presenting the position of women in school management, we devoted my special attention to specific problems of women managers connected with the following stereotypes: the stereotypical connection of men and management, the ‘labelling’ of women managers as members of some kind of minority, their reconciliation of private and business life, as well as the overloaded and stressful life (of women managers).
Response of canola varieties toward salt stress
E. Fani
Advanced Studies in Biology , 2012,
Abstract:
Changes chlorophyll a in response to drought stress in alfalfa (vs. Nick Urban) in climatic conditions of the south west Iran
E. Fani
Advanced Studies in Biology , 2012,
Abstract:
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