Search results for "HEMA"

showing 5 items of 32275 documents

Топологические пространства и их отображения. Выпуск 4

1979

Сборник содержит результаты исследований в области топологии, функционального анализа, теории функций.

ТопологияFunkcionālanalīzeТеория функцийTopoloģijaTopoloģiskās telpas:MATHEMATICS::Algebra geometry and mathematical analysis::Mathematical analysis [Research Subject Categories]Топологические пространстваФункциональный анализ
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Топологические пространства и их отображения

1981

Сборник содержит результаты исследований в области теории функций, функционального анлиза и топологии.

ТопологияFunkcionālanalīzeТеория функцийTopoloģijaTopoloģiskās telpas:MATHEMATICS::Algebra geometry and mathematical analysis::Mathematical analysis [Research Subject Categories]Топологические пространстваФункциональный анализ
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Dynamics of a harmonic oscillator coupled with a Glauber amplifier

2020

A system of a quantum harmonic oscillator bi-linearly coupled with a Glauber amplifier is analysed considering a time-dependent Hamiltonian model. The Hilbert space of this system may be exactly subdivided into invariant finite dimensional subspaces. Resorting to the Jordan-Schwinger map, the dynamical problem within each invariant subspace may be traced back to an effective SU(2) Hamiltonian model expressed in terms of spin variables only. This circumstance allows to analytically solve the dynamical problem and thus to study the exact dynamics of the oscillator-amplifier system under specific time-dependent scenarios. Peculiar physical effects are brought to light by comparing the dynamics…

гармонические осцилляторынестационарные гамильтонианыinverted quantum harmonic oscillatorNuclear TheoryFOS: Physical sciences01 natural sciencestime-dependent Hamiltonian010305 fluids & plasmasinteracting quantum harmonic oscillatorsymbols.namesakeexactly solvable SU(2) dynamical problem0103 physical sciencesInvariant (mathematics)Nuclear Experiment010306 general physicsMathematical PhysicsHarmonic oscillatorSpin-½PhysicsQuantum PhysicsInvariant subspaceHilbert spaceCondensed Matter PhysicsLinear subspaceAtomic and Molecular Physics and Opticsквантовые гармонические осцилляторыClassical mechanicsQuantum harmonic oscillatorточно решаемые динамические задачиCondensed Matter::Statistical MechanicssymbolsGlauber amplifierQuantum Physics (quant-ph)GlauberPhysica Scripta
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Some characterisations of groups in which normality is a transitive relation by means of subgroup embedding properties

2018

[EN] In this survey we highlight the relations between some subgroup embedding properties that characterise groups in which normality is a transitive relation in certain universes of groups with some finiteness properties.

‎group without infinite‎ ‎simple sectionsSubgroup&#8206FC&#8727lcsh:Mathematics-Group&#8206‎T-group‎Group Without Infinite&#8206Grups Teoria desubgroup embedding propertieslcsh:QA1-939t-property&#8206‎subgroup‎ ‎embedding property‎‎FC$^*$-group‎Group&#8206Simple Sectionst-property subgroup embedding properties‎group‎Embedding Property&#8206MATEMATICA APLICADAT-Group&#8206
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Flagship species of the Pieniny NP. protected ex situ at PAS BGCBDC seed bank at WARSAW-POWSIN

2014

Pieniny Mts. are important biodiversity hotspot in Central Europe. According to Pieniny National Park Long Term Conservation Plan 2000-2020 small, isolated populations of some of Pieniny NP flagship species can become extinct till 2020. That is why their ex situ preservation at seed bank is justified and reasonable as supplement of active and passive in situ conservation measures carried out by National Park staff. PAS Botanical Garden – Center for Biological Diversity Conservation at Warsaw-Powsin has a long tradition of cooperation with Pieniny National Park (S Poland). This article focuses on the actions undertaken during EU funded conservation project: “Ex situ conservation of native, t…

“FlorNaturOB” projectPieniny NP special interest plant speciesMinuartia setaceaseed dormancyDendranthema zawadzkiicryopreservationErysimum pieninicumFragmenta Naturae
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