Results 51 to 60 of about 76,584 (187)
On symplectic coverings of the projective plane [PDF]
42 ...
Greuel, G. -M., Kulikov, Vik. S.
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On the validation of spatial statistical vegetation models
The features of coefficients of determination and coefficients of leave-one-out method for spatial vegetation model and spatial models of squared deviations are discussed. The properties of models are illustrated in key area for spatial model of Cladonia
Makhatkov Igor
doaj +1 more source
Hodge theory of cyclic covers branched over a union of hyperplanes
Suppose that Y is a cyclic cover of projective space branched over a hyperplane arrangement D, and that U is the complement of the ramification locus in Y.
Arapura +13 more
core +1 more source
Some Characterized Projective δ-cover [PDF]
In this paper we characterize some properties of projective #948-cover and find some new results with #948-supplemented module M. Let M be a fixed R-module. A #948-cover in M is an #948-small epimorphism from M onto P. These concept introduce by Zhou [14]
Wadbude, R. S. (R)
core
Post-pyrogenic changes in vegetation cover and biological soil crust in steppe ecosystems
The study of the processes of restoration of species richness and productivity of steppe ecosystems after fires is an urgent problem that affects not only the conservation of biodiversity but also the maintenance of pasture resources.
V. V. Shcherbyna +3 more
doaj +1 more source
K3 surfaces with $\mathbb{Z}_2^2$ symplectic action
Let $G$ be a finite abelian group which acts symplectically on a K3 surface. The N\'eron-Severi lattice of the projective K3 surfaces admitting $G$ symplectic action and with minimal Picard number is computed by Garbagnati and Sarti.
Schaffler, Luca
core +1 more source
Infinite Noncommutative Covering Projections
51 pages, 34 references. arXiv admin note: text overlap with arXiv:hep-th/9904001, arXiv:1107.3458, arXiv:math/0608572 by other authors.
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Enlargement of Symmetry Groups in Physics: A Practitioner’s Guide
Wigner’s classification has led to the insight that projective unitary representations play a prominent role in quantum mechanics. The physics literature often states that the theory of projective unitary representations can be reduced to the theory of ...
Lehel Csillag +2 more
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n- Refined Neutrosophic of Fine Module With Some Applications [PDF]
: In this paper, we study and present an important concept in module theory which namely neutrosophic fine module. Fine property for modules and rings. We denote ( - module) to Fine module.
Muntaha AL-Fahdawi, Majid Al-Shujairy
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The purpose of this study was to assess the restoration of vegetation in the reclaimed bowls of the ash dumps of the Chita TPP-1. The object of the research was the vegetation cover formed on two worked-out cups of the ash dumps, which were reclaimed in ...
T. V. Zhelibo +2 more
doaj +1 more source

