Results 1 to 10 of about 3,471,986 (360)
Higher Secant Varieties of Segre-Veronese varieties [PDF]
, 2005 In this paper we consider the Segre-Veronese varieties, i.e., the embeddings of products of t projective spaces in the projective space PN via divisors of multi-degree (d1, . . . , dt), and we study the dimension of their higher secant varieties.
GERAMITA, ANTHONY VITO +2 more
core +5 more sources
Frontiers in Plant Science, 2022 The comparison of chloroplast genome (cpDNA) sequences among different plant species is an important source of plant molecular phylogenetic data. In this paper, the cpDNA sequences of 13 different oil-tea camellia samples were compared to identify an ...
Jing Chen +7 more
doaj +1 more source
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
Horticulturae, 2021 Pepper is one of the most important vegetable crops in China and has high economic value. However, the pepper fruit is easily softened and spoiled after harvest, which seriously affects its flavor, transportation, and economic value.
Hao Sun +11 more
doaj +1 more source
The Photosynthetic Characteristics of Different Purple Peppers
Horticulturae, 2021 The yield of pepper with purple leaves (PF) is low, while the pepper with green leaves (GM) is not resistant to strong light and high temperature.
Yu Huang +7 more
doaj +1 more source
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
Comparative characteristics of oilseed flax varieties in Western Forest-Steppe of Ukraine conditions
Plant Varieties Studying and Protection, 2020 Purpose. To study the effect of different sowing periods, seed sowing rates onto morphological and crop capacity indicators of oilseeds flax of Ukrainian varieties: ‘Orfei’, ‘Svitozir’ and ‘Vodohrai’. Methods. The research was conducted in 2018–2019 in
П. П. Ляльчук
doaj +1 more source
Horticulturae, 2023 Pepper (Capsicum annuum L.) is one of the most widely grown vegetable crops in China, with widespread cultivation worldwide. Fruit weight (size) is a complex trait controlled by multiple factors and is an essential determinant of pepper yield.
Yuxin Zheng +6 more
doaj +1 more source
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