Results 301 to 310 of about 68,973,280 (347)
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On the Periods of Periodic Motions in Autonomous Systems
Ukrainian Mathematical Journal, 2001Here, the author establishes lower bounds on the periods of periodic solutions to the autonomous system \(\dot x=f(x)\) determined in a partially ordered Banach space \( \langle X,\|\cdot\|,\preceq\rangle\). It is assumed that the mapping \(f:X\mapsto X\) satisfies the condition \({\mathbf m}(f(x_1)-f(x_2))\preceq_E L{\mathbf m}(x_1-x_2)\) for all ...
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1987
The period of production is, or purports to be, a measure of aggregate capital per head. More specifically, it is a theoretical concept which tries to measure an economy’s (heterogeneous) capital stock per head in (homogeneous) units of time.
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The period of production is, or purports to be, a measure of aggregate capital per head. More specifically, it is a theoretical concept which tries to measure an economy’s (heterogeneous) capital stock per head in (homogeneous) units of time.
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PERIODIC AND QUASI-PERIODIC LAGUERRE TILINGS
International Journal of Modern Physics B, 1993The Laguerre construction extends and unifies the notions of Voronoi (or Dirichlet) and Delaunay complex. It is shown how the standard projection formalism for the generation of quasi-periodic tilings from higher-dimensional periodic “oblique” (or “klotz”) tilings associated to periodic Voronoi and Delaunay complexes also applies more generally to ...
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Periodicity and Almost-Periodicity
2006Periodicity and almost-periodicity are phenomena which play an important role in most branches of mathematics and in many other sciences. This is a survey paper1 on my work in this area and on related work. I restrict myself to periodicity questions in combinatorics on words (the main dish), but I start with a periodicity problem from number theory ...
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Natural products as sources of new drugs over the period 1981-2002.
Journal of Natural Products, 2003D. Newman, G. Cragg, K. Snader
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Estimating the Latent Period of Coronavirus Disease 2019 (COVID-19).
Clinical Infectious Diseases, 2022Tim K Tsang, Hualei Xin, Zhongjie Li
exaly
The role of autophagy during the early neonatal starvation period
Nature, 2004Akiko Kuma +8 more
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Understanding adolescence as a period of social–affective engagement and goal flexibility
Nature Reviews Neuroscience, 2012E. Crone, R. Dahl
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