Results 11 to 20 of about 568,876 (283)

Special Varieties and classification Theory [PDF]

open access: yesAnnales de l'Institut Fourier, 2004
A new class of compact K\"ahler manifolds, called special, is defined, which are the ones having no surjective meromorphic map to an orbifold of general type.
Campana, Frederic
core   +6 more sources

Explicit Decomposition Theorem for special Schubert varieties [PDF]

open access: yesForum Mathematicum, 2019
We give a short and self-contained proof of the Decomposition Theorem for the non-small resolution of a Special Schubert variety. We also provide an explicit description of the perverse cohomology sheaves.
Franco, Davide
core   +4 more sources

Numerically non-special varieties

open access: yesCompositio Mathematica, 2022
Campana introduced the class of special varieties as the varieties admitting no Bogomolov sheaves, i.e. rank-one coherent subsheaves of maximal Kodaira dimension in some exterior power of the cotangent bundle. Campana raised the question of whether one can replace the Kodaira dimension by the numerical dimension in this characterization.
Pereira, Jorge Vitório   +2 more
openaire   +3 more sources

Conservation and successful utilization of landraces for rice improvement

open access: yesEnvironment Conservation Journal, 2022
Germplasm is the basis of all plant improvement programmes. The collected landraces of rice possessed high probability of the useful genes for efficient application in the breeding programmes to develop high yielding varieties with quality and ...
Bidhan Roy   +9 more
doaj   +1 more source

BIOCHEMICAL FEATURES OF SEEDS IN OIL FLAX VARIETIES FOR SPECIAL PURPOSES

open access: yesHarčova Nauka ì Tehnologìâ, 2023
Flaxseed oil and seeds are natural sources of essential fatty acids – ω-6 linoleic and ω-3 α-linolenic. However, the content of α-linolenic acid in the seeds of industrial varieties of oil flax and even in individual varieties of the food industry is ...
І. Poliakova   +4 more
doaj   +1 more source

Gromov-Witten invariants of a class of toric varieties [PDF]

open access: yes, 2000
We describe the quantum cohomology rings of a class of toric varieties. The description includes, in addition to the (already known) ring presentations, the (new) analogues for toric varieties of the sorts of quantum Giambelli formulas which exist ...
Kresch, Andrew
core   +2 more sources

Polynomial identities related to special Schubert varieties [PDF]

open access: yesApplicable Algebra in Engineering, Communication and Computing, 2021
AbstractLet $$\mathcal S$$ S be a single condition Schubert variety with an arbitrary number of strata. Recently, an explicit description of the summands involved in the decomposition theorem applied to such a variety has been obtained in a paper of the second author.
Cioffi F., Franco D., Sessa C.
openaire   +4 more sources

Analysis and selection of parental forms for crossbreeding of early potatoes for the arid conditions of the Middle Volga region

open access: yesBIO Web of Conferences, 2020
In the modern changing climate, selective breeding has been essential for increasing production and ensuring stable yields. Potato varieties with different ripening periods are suitable for the conditions of the Middle Volga region.
Molianov Vladimir   +2 more
doaj   +1 more source

Evaluation of Effective System for Tracing FHB Resistance in Wheat: An Editorial Commentary

open access: yesAgronomy, 2023
A Special Issue of Agronomy titled “Treatment and Management of Fusarium Disease in Wheat” published five articles addressing the resistance of winter wheat varieties/lines to Fusarium head blight (FHB) [...]
Valentina Spanic, Hrvoje Sarcevic
doaj   +1 more source

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