Search results for "Internal structures"

showing 2 items of 2 documents

Microstructural analysis of shearband boudin - preliminary results

2011

The internal structure of a shearband boudin resulting from an original igneous, hydrothermal or metamorphic segregation tabular rigid body is a subject of scientific interest. It allows understanding the deformation mechanisms acting on homogeneous quartz aggregate activated during simple shear progressive deformation. This communication is focused on the characterization of two main structural aspects: (i) the existence of different internal domains in shearband boudins; (ii) the development of internal structures related with its genesis and evolution, namely, secondary shear planes c’ type-I and c’ type-II, parameter B-t (mass accumulation sector on blunt tip of shearband boudin) and S-…

Ductile deformationInternal structuresShearband boudinQuartz aggregates
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Semidirect products of internal groupoids

2010

We give a characterization of those finitely complete categories with initial object and pushouts of split monomorphisms that admit categorical semidirect products. As an application we examine the case of groupoids with fixed set of objects. Further, we extend this to the internal case. (C) 2010 Elsevier B.V. All rights reserved.

Set (abstract data type)AlgebraSettore MAT/02 - AlgebraHigher-dimensional algebraAlgebra and Number Theorysemi-direct product groupoid internal structuresMathematics::Category TheoryCharacterization (mathematics)Categorical variableInitial and terminal objectsMathematicsJournal of Pure and Applied Algebra
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