Abstract: Uses a polynomial approach to present a necessary and sufficient condition for local controllability of single-input-single-output (SISO) nonlinear systems. The condition is presented in ...
§ Department of Chemistry, University of Strathclyde, Thomas Graham Building, 295 Cathedral Street, Glasgow, Scotland G1 1XL, United Kingdom ∥ Department of Physics, Scottish Universities Physics ...
Abstract: LaSalle’s invariance principle is a commonly used extension of Lyapunov’s second method to study asymptotic stability of nonlinear systems. If the system can be written in polynomial form, ...
Copyright 2025 The Associated Press. All Rights Reserved. Copyright 2025 The Associated Press. All Rights Reserved. A decade-long slide in high schoolers’ reading ...
The latest results from the so-called Nation’s Report Card are out, and they paint a sobering picture of academic achievement across the country. The National Center for Education Statistics has ...
Harvard economist Roland Fryer discovered something remarkable while studying the Harlem Children's Zone. They had eliminated the racial achievement gap in math and cut it by a third in reading. But ...
The Oklahoma high school softball season is heating up, and the rankings continue to shift. Several undefeated teams have climbed up the rankings, while one standout has witnessed its first loss of ...
Math equations used to be a daily chore for many elementary schoolers. But entering adulthood means those less mathematically inclined often never have to think about them ever again. And it appears ...
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