نتایج جستجو برای: flag
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Recent authors have investigated the use of manifolds and Lie group methods for independent component analysis (ICA), including the Stiefel and the Grassmann manifolds and the orthogonal group O(n). In this paper we introduce a new class of manifold, the generalized flag manifold, which is suitable for independent subspace analysis. The generalized flag manifold is a set of subspaces which are ...
We give conditions on a curve class that guarantee the vanishing of the structure constants of the small quantum cohomology of partial flag varieties F (k1, . . . , kr; n) for that class. We show that many of the structure constants of the quantum cohomology of flag varieties can be computed from the image of the evaluation morphism. In fact, we show that a certain class of these structure cons...
BACKGROUND Biological actions of estrogens are mediated by the two specific estrogen receptors ERalpha and ERbeta. However, due to the absence of adequate cellular models, their respective transcriptional activities are still poorly understood. For instance, the evaluation of such differing properties on the transcription of responsive genes using ChIP experiments was hindered by the deficiency...
In network coding, a flag code is set of sequences nested subspaces $${{\mathbb {F}}}_q^n$$ , being {F}}}_q$$ the finite field with q elements. Flag codes defined as orbits cyclic subgroup general linear group acting on flags are called orbit codes. Inspired by ideas in Gluesing-Luerssen et al. (Adv Math Commun 9(2):177–197, 2015), we determine cardinality and provide bounds for its distance he...
The UN Convention on the Law of Sea prescribes that vessels have nationality State whose flag they are entitled to fly and there must exist “a genuine link” between a “flag State” (a which entitles vessel its flag) vessels” (the States’ flag). But has neither definition term “genuine as legal link “legal rights – obligations”, nor defines vessels’ obligations. We analyzed status obligations rel...
Fludarabine in addition to cytosine-arabinoside (ARA-C) increases the accumulation of ARA-C-5'-triphosphate (ARA-CTP), which is responsible for the cytotoxic effect in leukemic blasts. In a randomized phase 3 trial, patients with high-risk myelodysplastic syndrome (MDS) (n = 91) or elderly patients with acute myeloid leukemia (AML) (n = 43) were randomized to receive 2 induction courses consist...
We study non-reversible Finsler metrics with constant flag curvature 1 on S and show that the geodesic flow of every such metric is conjugate to that of one of Katok’s examples, which form a 1-parameter family. In particular, the length of the shortest closed geodesic is a complete invariant of the geodesic flow. We also show, in any dimension, that the geodesic flow of a Finsler metrics with c...
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