Pairing-based algorithms for jacobians of genus 2 curves with maximal endomorphism ring

Using Galois cohomology, Schmoyer characterizes cryptographic non-trivial self-pairings of the $\ell$-Tate pairing in terms of the action of the Frobenius on the $\ell$-torsion of the Jacobian of a genus 2 curve. We apply similar techniques to study the non-degeneracy of the $\ell$-Tate pairing restrained to subgroups of the $\ell$-torsion which are maximal isotropic with respect to the Weil pairing. First, we deduce a criterion to verify whether the jacobian of a genus 2 curve has maximal endomorphism ring. Secondly, we derive a method to construct horizontal $(\ell,\ell)$-isogenies starting from a jacobian with maximal endomorphism ring

Common Language Created by Legislation Regarding the Teritorial Limit of the Production Vine Wine Potential of Romania

Trying to build a future according to the one of EU and aspiring after becoming an apreciate member of the International Wine Community, as a producer of some valuable wines, Romania has intensified the efforts to reach these issues, to create a common language at the international level, european and even national, starting with the actions that followed to the Law of Wine and Vineyard no.224/2002. It was imperatively imposed a strict reevaluation of the production wine and vine potential, for example the delimitation and a group of the viticultural areas. With the studies made by the authorized institutions of the government there were identified and aproved eight viticultural regions.the limitation of the viticultural area, teritorial group of viticultural area, european viticultural area, viticultural region, recommended sorts, authorized sorts, wine with name of controlled origin.

INNOVATION – A WAY OF INCREASING SMALL AND MEDIUM- SIZED TOURISM ENTERPRISES COMPETITIVENESS

The tourism phenomenon and the diversification of its forms have multiple consequences on the natural environment, the society and the economy. On the other hand, Small and medium-sized enterprises (SMEs) competitiveness affects the competitive position of the economy as a whole. Innovation in tourism is associated with novelty of the marketing methods for obtain a favorable impact on consumers, creativity for creating a new tourism services according with the request at the market, performance for necessary in order to resist in a growing competition. Those key elements bring an improvement to the tourism services and are based on the efforts to adding value according to the consumers’ perspective. Competitive strength of a SMTEs lies in competitive advantages and distinctive competencies that we possess in relation to other competitors. The paper focuses on the questions: What could be the contribution of SMTEs to the development and competitiveness of tourism destination?small and medium enterprises, competitiveness, tourism

ACCOUNTING CONVERGENCE ON ECONOMIC CRISIS

If normalization accounting is the process of harmonizing the presentation of financial statements, accounting methods and terminology, accounting convergence is the process by which accounting standards are developed in a way that is able to lead to the same fact or purpose, by highlighting the similarity of national - regional - international. This paper put in light the importance of the normalization and harmonization process, what it's done in and what we have to do for that in Romania.accounting, globalization, convergence

The Retail Romanian Market and the Functional Integrated Commercial Centers

The Romanian trade is passing through a transforming process, both for what the nature of the involved economic agents are concerned and the methods, techniques, knowledge etc. necessary for the activities within this economic field. Many of the favourable changes have been produced both under the influence of the large foreign retail groups (especially the European ones), present at the moment on the Romanian market too, and the impact of certain legislative regulations applicable in this field. Right from the beginning of the “post December” period, there was an imperative need as far as the trade development was concerned, as well as the creation of an urban framework that should offer optimal conditions to carry out trading activities. The implementation of the foreign retail groups (including the large commercial centers) has brought to our country the practices and commercial policies encountered in the civilized world, imposing at the same time the practice of the real competition, accompanied by a series of more or less favourable consequences, both at the local and national level. By the mid of March 2008, the hypermarket and supermarket type of market chains, discount and cash & carry markets (over 40) is going through an extension process, a fact which is to be observed in the huge number of markets in Romania, the Romanian market being open for the foreign investments.commercial centre, retail market, hypermarket, supermarket, discount market, cash & carry market, urban centre.

Finding simultaneous Diophantine approximations with prescribed quality

We give an algorithm that finds a sequence of approximations with Dirichlet coefficients bounded by a constant only depending on the dimension. The algorithm uses the LLL-algorithm for lattice basis reduction. We present a version of the algorithm that runs in polynomial time of the input.Comment: 16 pages, 7 figure

CHANGE – E-BUSINESS – THE MAJOR FACTORS FOR ADVANCED COMPETITIVE IN ROMANIAN TRAVEL AGENCIES

The Internet and e-business adoption are the most important issues of this century for travel agencies. Although, the Internet provides many opportunities to do business; therefore, in the near future the Romania travel agencies may lose their competitiveness. Redesigning the business processes of travel agencies to adapt them to e-business environment is aimed in this study. The present system is going to be analyzed and redesigned to make them able to utilize from technology efficiently.e-business, travel agencies, e-commerce

The Territorial Dimension of the Cohesion Policy

This paper will focus on exploring the territorial dimension of the cohesion policy of the EU as it was stated in the Community Strategic Guidelines on Cohesion, as being the capacity of the cohesion policy to adapt to the particular needs and characteristics of specific geographical challenges and opportunities. In this respect, the main territorial disparities, which led the EU decision factors to promote the territorial guidelines of the cohesion, will be emphasized. Particular attention will be paid to the various policies with impact on the territorial cohesion, as well as to the place of the territorial development on the European Agenda, namely the European Spatial Development Perspective and the Territorial Agenda of the European Union. In the end, the Romanian approach of the territorial cohesion will be presented in the framework of the programming period 2007-2013.territorial features; disparities; cohesion

ROMANIA AND THE KNOWLEDGE-BASED ECONOMY: INNOVATION THE SOURCE OF ECONOMIC GROWTH

The is already a vast literature on the role of knowledge in economic growth butthere is need to clarify the meaning and scope of this term and define the Romanianperspective on the relationship between knowledge-based economy and growth. This paper focuses on innovation systems in Romania as the key challenge and meanfor embracing growth based on knowledge-based economy.innovation, economic growth, knowledge