19,093 research outputs found
Almost periodic evolution systems with impulse action at state-dependent moments
We study the existence of almost periodic solutions for semi-linear abstract
parabolic evolution equations with impulse action at state-dependent moments.
In particular, we present conditions excluding the beating phenomenon in these
systems. The main result is illustrated with an example of impulsive diffusive
logistic equation.Comment: 16 pages, minor changes from the previous versio
MIT Space Engineering Research Center
The Space Engineering Research Center (SERC) at MIT, started in Jul. 1988, has completed two years of research. The Center is approaching the operational phase of its first testbed, is midway through the construction of a second testbed, and is in the design phase of a third. We presently have seven participating faculty, four participating staff members, ten graduate students, and numerous undergraduates. This report reviews the testbed programs, individual graduate research, other SERC activities not funded by the Center, interaction with non-MIT organizations, and SERC milestones. Published papers made possible by SERC funding are included at the end of the report
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