Results 11 to 20 of about 1,572,343 (315)
AbstractWe consider algebraic varieties canonically associated with any Lie superalgebra, and study them in detail for super-Poincaré algebras of physical interest. They are the locus of nilpotent elements in (the projectivized parity reversal of) the odd part of the algebra.
Richard Eager +2 more
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Secant varieties of Grassmann varieties [PDF]
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
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Algebraic varieties which are locally isomorphic to open subsets of affine space will be called {\em plain}. Plain varieties are smooth and rational. The converse is true for curves and surfaces, and unknown in general. It is shown that plain varieties are stable under blowup in smooth centers.
Bodnar, Gabor +3 more
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Numerical algorithms involving Hessenberg matrices correspond to dynamical systems which evolve on the subvariety of complete flags S 1 ⊂ S 2 ⊂ ⋯ ⊂ S n −
DE MARI CASARETO DAL VERME, FILIPPO +2 more
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Light is an important environmental factor for plant growth and development, different light qualities have different regulatory effects on plants. To investigate the effect of light quality on plants, we determined the physiological characteristics ...
Zhoubin Liu +9 more
doaj +1 more source
A Fibrational Approach to Automata Theory [PDF]
For predual categories C and D we establish isomorphisms between opfibrations representing local varieties of languages in C, local pseudovarieties of D-monoids, and finitely generated profinite D-monoids.
Chen, Liang-Ting, Urbat, Henning
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Light is a crucial environmental component for plant growth, and light intensity plays a crucial function in controlling pigment anabolism in plants. We performed physiological characterisation, transcriptome, and metabolome investigations on purple leaf
Yiyu Shen +5 more
doaj +1 more source
Diptych varieties. II: Apolar varieties
24 pages. A tribute to Yujiro Kawamata, to appear in his sixtieth birthday conference proceedings, ASPM 2015. The webpage at http://homepages.warwick.ac.uk/staff/G.Brown/diptych.html contains links to auxiliary material. (First update adds more detail to calculations of polars and includes a new key variety to handle small cases all together.
Brown, Gavin, Reid, Miles
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Сортові ресурси жита посівного (Secale cereale L.) у Державному реєстрі сортів рослин України
Мета. Аналіз формування сортового ресурсу жита посівного озимого для українських виробників. Результати. Сорти жита посівного (Secale cereale L.) проаналізовані за низкою господарсько-цінних ознак тастійкістю до абіотичних факторів.
В. Т. Саблук +2 more
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Projected Richardson varieties and affine Schubert varieties [PDF]
Let $G$ be a complex quasi-simple algebraic group and $G/P$ be a partial flag variety. The projections of Richardson varieties from the full flag variety form a stratification of $G/P$.
He, Xuhua, Lam, Thomas
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