Results 21 to 30 of about 15,894 (297)

Completions and Ramifications

open access: yes, 2022
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 ...
openaire   +2 more sources

Ramification in quartic cyclic number fields $K$ generated by $x^4+px^2+p$ [PDF]

open access: yesMathematica Bohemica, 2021
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
doaj   +1 more source

Logarithmic approach to the double ramification cycle [PDF]

open access: yes, 2023
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]

open access: yesGlasnik Šumarskog Fakulteta: Univerzitet u Beogradu, 2012
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
doaj   +1 more source

Effet du travail du sol sur la productivité de différentes provenances de Jatropha curcas

open access: yesOléagineux, Corps gras, Lipides, 2013
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
doaj   +1 more source

A remark on primitive roots and ramification [PDF]

open access: yes, 1973
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
core   +1 more source

RESULTS OF STUDYING HAIRY VETCH (VICIA VILLOSA ROTH) IN MONO- AND BINARY AGROPHYTOCOENOSES AT SPRING PLANTING UNDER THE CONDITIONS OF THE NORTH-EAST OF THE RUSSIAN FEDERATION

open access: yesТруды по прикладной ботанике, генетике и селекции, 2018
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
doaj   +1 more source

Logarithmic intersections of double ramification cycles [PDF]

open access: yes, 2022
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

"Ramifications"

open access: yesMusicological Annual, 1987
"Ramifications"
openaire   +4 more sources

Ramification of stream networks [PDF]

open access: yesProceedings of the National Academy of Sciences, 2012
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
openaire   +5 more sources

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