Results 41 to 50 of about 76,584 (187)
Remote Sensing, 2016 Tree cover maps are used for many purposes, such as vegetation mapping, habitat connectivity and fragmentation studies. Small remnant patches of native vegetation are recognised as ecologically important, yet they are underestimated in remote sensing ...
Adrian Fisher +5 more
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Split strongly abelian p-chief factors and first degree restricted cohomology [PDF]
, 2013 In this paper we investigate the relation between the multiplicities of split strongly abelian p-chief factors of finite-dimensional restricted Lie algebras and first degree restricted cohomology.
Feldvoss, Jörg +2 more
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Projective symmetry of partons in Kitaev's honeycomb model
, 2015 Low-energy states of quantum spin liquids are thought to involve partons living in a gauge-field background. We study the spectrum of Majorana fermions of Kitaev's honeycomb model on spherical clusters.
Mellado, Paula +2 more
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MONITORING OF WEED INFESTATION OF CROPS AT MODERN RESOURCE-SAVING WAYS OF THE MAIN SOIL PROCESSING [PDF]
Russian Journal of Agricultural and Socio-Economic Sciences, 2012 The results of investigation of influence of different soil processing methods on weed infestation of crops and their influence on agricultural crop efficiency in the conditions of the Orel region are examined. The analysis and estimation of agricultural
A. Zabrodkin +3 more
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Vegetation recovery in fire-damaged forests: a case study at the southern boundary of the taiga zone
Metsanduslikud Uurimused, 2016 Wildfire is regarded as important environmental factor determining the vegetation of the Earth. We analyzed 11 plots at different types of forest affected by fire at the southern boundary of the taiga zone.
Khapugin Anatoliy A. +2 more
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Pseudo-effectivity of the relative canonical divisor and uniruledness in positive characteristic [PDF]
Épijournal de Géométrie AlgébriqueWe show that if $f\colon X \to T$ is a surjective morphism between smooth projective varieties over an algebraically closed field $k$ of characteristic $p>0$ with geometrically integral and non-uniruled generic fiber, then $K_{X/T}$ is pseudo ...
Zsolt Patakfalvi
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Ukrainian Botanical Journal, 2020 Aldrovanda vesiculosa is a rare stenotopic species threatened due to destruction of its biotopes. Since the species is protected nationally and internationally, monitoring of its populations is required. Information on growth conditions of A.
Lukash O.V. +3 more
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Classes of modules closed under projective covers
Open MathematicsIn this work, we study some classes of modules closed under submodules, quotients, and projective covers, even if the left projective cover of an arbitrary left module not always exists. We obtain a characterization of artinian principal ideal rings when
Cejudo-Castilla César +2 more
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Аграрная наука Евро-Северо-Востока, 2021 In 2019-2020, the quality of lawn-type grass mixtures based on creeping clover (Trifolium repens L.), meadow fescue (Festuca pratensis), pasture ryegrass (Lolium perenne) and meadow bluegrass (Poa pratensis) was evaluated in the conditions of the forest ...
O. A. Timoshkin +2 more
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Cyclically presented modules, projective covers and factorizations
, 2013 We investigate projective covers of cyclically presented modules, characterizing the rings over which every cyclically presented module has a projective cover as the rings $R$ that are Von Neumann regular modulo their Jacobson radical $J(R)$ and in which
Facchini, Alberto +2 more
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