the regional and spatial dimension of development planning must be taken as a point of departure to the mutual of the spatial structure of the economy , development strategy and policies applied 'therein such as the location principles and regional development coordination of the territorial problems with the national development planning and timing of regional vis-a-vis national development plan_. Certain balance and integration is of sound necessity' between national _regional and local development objectives through which the national development strategy should have to represent the guidelines of the local development aspirations and goals. The economic development exerts an impact on the spatial evolution, being itself subject to influence by the spatial socio- economic structures. The regional planning is not an end by itself, rather it is a factor for arranging to realize certain opinions or concepts more successfully. therefore, it is a basis for decision -making and policies to carry_ out the plans and programmers With a region adequately delineated, the organization and procedures could be planned for that specific - region and its problems , i e….., 'study must be directed ,in particular, towards the examination of economic ,social, geographic physical, geological hydro geological and many other factors. Hence , regionalism emphasizes the deep significance of the regional factors in national planning and development. The decentralization have to be accompanied with effective integrated planning at the national level and by measures and criteria where by regional plans may be satisfactorily integrated into the national policies. The regional policy is a trend of the economic, social and physical factors of production for higher economic growth and social development. Meanwhile to ensure the shaping of rational interregional proportions of the industrial location and in turn the per capita income among regions. The regional policy is integrally connected with the policy of the distribution of productive forces through investment as a factor of changes in the geographical distribution_ of output and development expressed by the changes of the location of output capacities and Tile changes of the location of industries. The structure of the regions is subject to changes due to different reasons such as changes in the level of employment, changes in the efficiency of labour and changes in the programmes of production.
The aim of this paper is to introduces and study the concept of CSO-compact space via the notation of simply-open sets as well as to investigate their relationship to some well known classes of topological spaces and give some of his properties.
In this paper, the concept of semi-?-open set will be used to define a new kind of strongly connectedness on a topological subspace namely "semi-?-connectedness". Moreover, we prove that semi-?-connectedness property is a topological property and give an example to show that semi-?-connectedness property is not a hereditary property. Also, we prove thate semi-?-irresolute image of a semi-?-connected space is a semi-?-connected space.
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The purpose of this paper is to give some results theorems , propositions and corollaries concerning new algebraic systems flower , garden and farm with accustomed algebraic systems groupoid , group and ring.
Throughout this work we introduce the notion of Annihilator-closed submodules, and we give some basic properties of this concept. We also introduce a generalization for the Extending modules, namely Annihilator-extending modules. Some fundamental properties are presented as well as we discuss the relation between this concept and some other related concepts.
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Let R be associative ring with identity and M is a non- zero unitary left module over R. M is called M- hollow if every maximal submodule of M is small submodule of M. In this paper we study the properties of this kind of modules.
Let R be associative; ring; with an identity and let D be unitary left R- module; . In this work we present semiannihilator; supplement submodule as a generalization of R-a- supplement submodule, Let U and V be submodules of an R-module D if D=U+V and whenever Y≤ V and D=U+Y, then annY≪R;. We also introduce the the concept of semiannihilator -supplemented ;modules and semiannihilator weak; supplemented modules, and we give some basic properties of this conseptes
Many codiskcyclic operators on infinite-dimensional separable Hilbert space do not satisfy the criterion of codiskcyclic operators. In this paper, a kind of codiskcyclic operators satisfying the criterion has been characterized, the equivalence between them has been discussed and the class of codiskcyclic operators satisfying their direct summand is codiskcyclic. Finally, this kind of operators is used to prove that every codiskcyclic operator satisfies the criterion if the general kernel is dense in the space.
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