Results 21 to 30 of about 15,894 (297)
We investigate ramifications, which are simplicial complexes constructed with a very simple inductive property: if two complexes are ramifications, then their union is a ramification whenever their intersection is a ramification. We show that the collection of all ramifications properly contains the collection of all collapsible complexes and that it ...
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Ramification in quartic cyclic number fields $K$ generated by $x^4+px^2+p$ [PDF]
If $K$ is the splitting field of the polynomial $f(x)=x^4+px^2+p$ and $p$ is a rational prime of the form $4+n^2$, we give appropriate generators of $K$ to obtain the explicit factorization of the ideal $q{\mathcal O}_K$, where $q$ is a positive rational
Julio Pérez-Hernández +1 more
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Logarithmic approach to the double ramification cycle [PDF]
This thesis discusses several questions regarding the double ramification cycle as a Chow class on the moduli space of stable n-pointed genus g curves using tools from so-called logarithmic geometry.
Schwarz, R.M.
core
Effect of explant type, medium and soil mixture content on Dianthus deltoides L. rooting and acclimatization [PDF]
The possibility of developing roots and shoots on Dianthus deltoides nodal and apical cuttings on rooting media was investigated in vitro conditions. The explants developed roots and shoots successfully, and the best results were achieved on MS medium
Marković Marija, Popović Marija
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Effet du travail du sol sur la productivité de différentes provenances de Jatropha curcas
Jatropha curcas L. (JCL), an oleaginous species traditionally used as live fence, is massively planted in Africa to produce biofuel. However, the influence of many factors on its productivity remains scientifically unknown. This study aimed to assess the
Barro Lamine +3 more
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A remark on primitive roots and ramification [PDF]
The problem on primitive roots modulo the powers of a prime ideal in a ring of algebraic integers is solved, and a connection with ramification is ...
Albis González, Víctor Samuel
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Hairy vetch (Vicia villosa Roth), like common vetch (V. sativa L.), is one of the most widespread cultivated forage vetches. In Russia, hairy vetch is sown both in spring and winter planting seasons. V.
T. G. Aleksandrova +4 more
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Logarithmic intersections of double ramification cycles [PDF]
We describe a theory of logarithmic Chow rings and tautological subrings for logarithmically smooth algebraic stacks, via a generalisation of the notion of piecewise-polynomial functions.
Holmes, D., Schwarz, R.
core +1 more source
Ramification of stream networks [PDF]
The geometric complexity of stream networks has been a source of fascination for centuries. However, a comprehensive understanding of ramification—the mechanism of branching by which such networks grow—remains elusive. Here we show that streams incised by groundwater seepage branch at a characteristic angle of 2
Devauchelle, O +3 more
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