In this paper we study the discrete and continuous time H-infinity control problems without any assumptions on the system parameters. Our approach yields necessary and sufficient conditions for the existence of a suit...
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In this paper we study the discrete and continuous time H-infinity control problems without any assumptions on the system parameters. Our approach yields necessary and sufficient conditions for the existence of a suitable controller.
Pick two trees from among all ''bipartite trees'' with a fixed (n, n) two-coloring. We estimate the probability that the superposition of these two trees contains a perfect matching. As n --> infini...
Pick two trees from among all ''bipartite trees'' with a fixed (n, n) two-coloring. We estimate the probability that the superposition of these two trees contains a perfect matching. As n --> infinity, this probability approaches 1. (C) 1994 John Wiley & Sons, Inc.
We have designed a robotic honeybee to mimic the bee dance communication system. To achieve this goal, a tracking system has been developed to extract real bee dance trajectories recorded with high-speed video cameras...
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A mathematical model of the 51Cr-release microcytotoxicity assay was used to find conditions under which the kinetics of this assay resemble the kinetics of a classical enzyme-substrate reaction. Assuming a steady-sta...
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A mathematical model of the 51Cr-release microcytotoxicity assay was used to find conditions under which the kinetics of this assay resemble the kinetics of a classical enzyme-substrate reaction. Assuming a steady-state approximation, that bystander effector cells do not bind markedly better than the cytotoxic effector cells, and that the programming of the target cells for lysis is irreversible, it is shown that the velocity of label release is v vmaxTT/(K1/2 + TT), where both Vmax and K1/2 are linear functions of the effector-cell population and TT is the initial target-cell population. The expressions for K1/2 and Vmax are expressed in terms of natural kinetic parameters of the process and attributes of the noncytotoxic bystanders.
A semi-infinite programming problem is a mathematical programming problem with a finite number of variables and infinitely many constraints. Duality theories and generalized convexity concepts are important research t...
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A semi-infinite programming problem is a mathematical programming problem with a finite number of variables and infinitely many constraints. Duality theories and generalized convexity concepts are important research topics in mathematical programming. In this paper, we discuss a fairly large number of paramet- ric duality results under various generalized （η,ρ）-invexity assumptions for a semi-infinite minmax fractional programming problem.
AbstractWe investigate locally grid graphs. The main results are (i) a characterization of the Johnson graphs (and certain quotients of these) as locally grid graphs such that two points at distance 2 have precisely f...
AbstractWe investigate locally grid graphs. The main results are (i) a characterization of the Johnson graphs (and certain quotients of these) as locally grid graphs such that two points at distance 2 have precisely four common neighbors, and (ii) a complete determination of all graphs that are locally a 4 × 4 grid (it turns out that there are four such graphs, with 35, 40, 40, and 70 vertices)
This study characterizes the black carbon in Agra, India home to the Taj Mahal--and situated in the lndo-Gangetic basin. The mean black carbon concentration is 9.5 μg m-3 and, owing to excessive biomass/fossil fuel c...
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This study characterizes the black carbon in Agra, India home to the Taj Mahal--and situated in the lndo-Gangetic basin. The mean black carbon concentration is 9.5 μg m-3 and, owing to excessive biomass/fossil fuel combustion and automobile emissions, the concentration varies considerably. Seasonally, the black carbon mass concentration is highest in winter, probably due to the increased fossil fuel consumption for heating and cooking, apart from a low boundary layer. The nocturnal peak rises prominently in winter, when the use of domestic heating is excessive. Meanwhile, the concentration is lowest during the monsoon season because of the turbulent atmospheric conditions and the process of washout by precipitation. The ratio of black carbon to brown carbon is less than unity during the entire study period, except in winter （December）. This may be because that biomass combustion and diesel exhaust are major black carbon contributors in this region, while a higher ratio in winter may be due to the increased consumption of fossil fuel and wood for heating purposes. ANOVA reveals significant monthly variation in the concentration of black carbon; plus, it is negatively correlated with wind speed and temperature. A high black carbon mass concentration is observed at moderate （1-2 m s-1） wind speed, as compared to calm or turbulent atmospheric conditions.
In this work we introduce the notion of finite-step Lyapunov functions for difference inclusions. First, we prove that the existence of a finite-step Lyapunov function is sufficient and necessary for the difference in...
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