Results 31 to 40 of about 23,701 (249)
Relative singularity categories and singular equivalences [PDF]
Let $R$ be a right notherian ring. We introduce the concept of relative singularity category $ _{\mathcal{X}}(R)$ of $R$ with respect to a contravariantly finite subcategory $\mathcal{X}$ of $\rm{mod}\mbox{-}R.$ Along with some finiteness conditions on $\mathcal{X}$, we prove that $ _{\mathcal{X}}(R)$ is triangle equivalent to a subcategory of the ...
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Les jeux entre singularité et généricité des savoirs agro-écologiques dans un réseau d’éleveurs
The ecologisation of agriculture raises many issues about the knowledge needed to support the agroecological transition, both regarding their modes of production and their nature, and their forms of transmission and sharing.
Nathalie Girard, Danièle Magda
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En este artículo pretendemos mostrar que le conjunto de las economías singulares, si bien pequeño desde el punto de vista de la topología y/o desde el punto de vista de la teoría de la medida, tiene importantes efectos en el desarrollo de los regímenes económicos.
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Kinematics and singularity analysis of UR5 robot
In order to solve the problem that the UR5 robot coordinate system established by the user is inconsistent with the manufacturer's, and the data related to the force, angular velocity, angular acceleration are difficult to be directly used, based on the ...
Fuxiang ZHANG, Yang ZHAO
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5 pages, 5 figures.
Raphael Bousso, Arvin Shahbazi-Moghaddam
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On the boundary value problems for ordinary differential equations with isolated singularity
We consider some two-point boundary value problems for second order o.d.e. with strong singularity. The asymptotics of the solutions at the singular point are given. The existence and uniqueness of the solutions of those problems are prooved.
Kristina Aldošina, Stasys Rutkauskas
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Abstract Background Sickle cell disease (SCD) is an autosomal recessive hemoglobinopathy affecting millions of individuals worldwide. The clinical expression and psychosocial burden of SCD vary widely across geographical, cultural, and healthcare system contexts, underscoring the need for setting‐specific approaches to assessment.
Desiré Fantasia +7 more
wiley +1 more source
We investigate the impact of a country’s population happiness level and happiness inequality on the level of entrepreneurship engagement pursued by individual entrepreneurs in that country.
Fan Jia, André van Stel, Ying Zhang
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A Physical – Geometrical Model of an Early Universe [PDF]
A physical-geometrical model for a possible early universe is proposed. One considers an initial singularity containing the energy of the whole universe. The singularity expands as a spherical wave at the speed of light generating space and time.
Corneliu BERBENTE
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32 pages; 2 figures; to appear in Geometry & ...
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