Problem of the coexistence of several non-Hermitian observables in PT -symmetric quantum mechanics
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DOI: 10.1103/physreva.95.042122
Abstract: During the recent developments of quantum theory it has been clarified that the observable quantities (like energy or position) may be represented by operators (with real spectra) which are manifestly non-Hermitian. The mathematical consistency of… read more here.
Keywords: coexistence several; problem coexistence; several non; hermitian observables ... See more keywords
Oscillation of first-order differential equations with several non-monotone retarded arguments
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DOI: 10.1515/gmj-2019-2055
Abstract: Abstract Consider the first-order linear differential equation with several non-monotone retarded arguments x ′ ( t ) + ∑ i = 1 m p i ( t ) x ( τ… read more here.
Keywords: monotone retarded; retarded arguments; non monotone; first order ... See more keywords
In Vitro Rumen Fermentation Kinetics Determination and Nutritional Evaluation of Several Non-Conventional Plants with Potential for Ruminant Feeding
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DOI: 10.3390/fermentation9050416
Abstract: Using invasive plants as non-conventional forage in livestock production can contribute to meeting climate change targets and provide a competitive advantage in a global market. This study evaluated the nutritional potential of several non-conventional plants:… read more here.
Keywords: plants potential; non conventional; rumen fermentation; vitro rumen ... See more keywords