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This work focuses on the 3D incompressible magnetohydrodynamic (MHD) equations with mixed pressure-velocity-magnetic field in view of Lorentz spaces. Our main result shows the weak solution is regular, provided that π e−|x| 2 + |u| + |b| θ ∈ L p (0, T; L q,∞), where 2 p + 3 q = 2 − θ and 0 ≤ θ ≤ 1.

Alabaster stone (alabaster) or calcite, which is the geological name of transparent alabaster, as it is formed from crystallized calcium carbonate, and it is white, or white color tilted to yellow and the thin sectors are transparent, some things with veins often somewhat similar to wood veins, and It is clear that the alabaster stone was one of the favorite and preferred stones of the ancient Egyptians, due to the beauty of its appearance after refinement, and above use in building and architecture, it was used for other purposes in the pre-dynastic era and until the late Pharaonic era, as it did The researcher presented, explained, and described some of the traditional artifacts of The ancient Saria that is based on Alabaster stone (Alabaster), so the research aims at an analytical study of the traditional artifacts based on Alabar Stone (Alabaster) in ancient Egyptian art through the definition of artistic features and the identification of functional and ideological purposes, and from this the importance of research lies In dealing with an aspect of the ancient Egyptian heritage, which is the traditional artifacts based on alabaster stone in ancient Egyptian art, a definition of its customs, traditions and beliefs, And it resulted from the study that the popular arts and crafts in general, and the Egyptian alabaster crafts in particular, are characterized by the uniqueness and specificity imposed by the natural environment, as well as the artistic richness in its public body as well as the methods of its manufacture. The researcher also recommends attention and encouragement for studies dealing with ancient Egyptian arts and crafts in order to preserve and record the heritage in various forms and to monitor the variables affecting it.

The formality is a method of legal maintenance known to the oldest legal systems and is still present in modern systems, but they have developed its concept.Formality emerged in primitive systems as a result of the elders' desire to embody the morale and to give it awareness or visionary entity, symbolizing it. This was formal (symbolic) involving special movements that responded to human instincts.The Roman law of the ancient era was fertile ground for this formality. This law was not known of legal acts except what had a legal form since the lack of form was alienated from the nature of the ancient Romans.