Results 11 to 20 of about 2,834,605 (268)
Secant varieties of Grassmann varieties [PDF]
Proceedings of the American Mathematical Society, 2004 In this paper we discuss the dimensions of the (higher) secant varieties to the Grassmann varieties, embedded via the Plucker embeddings. We use Terracini's Lemma and the duality in the exterior algebra of a finite dimensional vector space to translate the problem into that of finding the dimension of a graded piece of a " fat" ideal in the exterior ...
GIMIGLIANO, ALESSANDRO +2 more
openaire +6 more sources
Experimental Mathematics, 2017 In this paper we will prove that the six-dimensional Göpel variety in $P^{134}$ is generated by 120 linear, 35 cubic and 35 quartic relations. This result was already obtained in [RS] , but the authors used a statement in [Co] saying that the Göpel variety set theoretically is generated by the linear and cubic relations alone.
Freitag, Eberhard +1 more
openaire +2 more sources
, 2021 This is a chapter in an upcoming Handbook of Automata ...
Straubing, Howard, Weil, Pascal
openaire +3 more sources
Is Every Toric Variety an M-variety? [PDF]
manuscripta mathematica, 2006 A complex algebraic variety X defined over the real numbers is called an M-variety if the sum of its Betti numbers (for homology with closed supports and coefficients in Z/2) coincides with the corresponding sum for the real part of X. It has been known for a long time that any nonsingular complete toric variety is an M-variety.
Bihan, Frederic +3 more
openaire +3 more sources
On the Ideals of Secant Varieties of Segre Varieties [PDF]
Foundations of Computational Mathematics, 2004 19 ...
J. M. Landsberg, Laurent Manivel
openaire +3 more sources
Model of adaptive information system for forecasting crop productivity
Plant Varieties Studying and Protection, 2020 Purpose of this study was to develop the main components of a model of an adaptive information system for predicting crop productivity. Methods. To conduct research on the establishment of the basic structural elements of an adaptive information model ...
С. І. Мельник +6 more
doaj +1 more source
Complex Assessment of Varietal Resources of the Lettuce (Lactuca sativa L).
Plant Varieties Studying and Protection, 2011 Complex assessment of varietal resources of the lettuce by means of identification of morphological descriptions and determination of indices of suitability for dissemination in Ukraine is considered.
Н. В. Лещук +3 more
doaj +1 more source
Вивчення впливу борошна люпину вузьколистого на реологічні властивості тіста з пшеничного борошна
Plant Varieties Studying and Protection, 2019 Мета. Установити закономірності зміни реологічних властивостей тіста та лабораторної випічки залежно від кількості борошна з різних сортів люпину, доданого до пшеничного борошна. Методи.
Л. М. Присяжнюк +3 more
doaj +1 more source
Minimal noncommutative varieties and power varieties [PDF]
Pacific Journal of Mathematics, 1984 A variety of finite monoids is a class of finite monoids closed under taking submonoids, quotients and \textit{finite} direct products. A language L is a subset of a finitely generated free monoid. The variety theorem of Eilenberg sets up a one to one correspondence between varieties of finite monoids and classes of languages called, appropriately ...
Margolis, Stuart W., Pin, Jean-Eric
openaire +2 more sources
Formation оf productivity depending on the stability and plasticity of grain sorghum varieties
Plant Varieties Studying and Protection, 2017 Purpose. To evaluate the stability and plasticity of new varieties of grain sorghum in ecological conditions of the Fores-Steppe and Steppe zone of Ukraine. Methods. Field study, statistical evaluation. Results. It was found that in Ukraine the average
Г. М. Каражбей +4 more
doaj +1 more source