Department of Pure Mathematics, Faculty of Mathematical Sciences, University of Kashan, P.O. Box 87317-51167, Kashan, Iran School of Mathematics, Institute for Research in Fundamental Sciences (IPM), ...

In this paper, we describe the necessary and sufficient conditions for upper triangular n × n matrix over a ring to be left (right) semicentral idempotent. Circle compositions of left and right ...

Abstract: This paper concentrates on the design of intelligent adaptive tracking controller for stochastic switched nonlinear pure-feedback systems with input saturation and non-lower triangular ...

F rench automaker Renault and its performance-oriented Alpine division have been on an electric-vehicle tear in recent years, ...

The flight was attempting to land at Charlotte Douglas International Airport on June 28, 2023, when a warning light came on as the pilots were trying to lower the landing gear. The jet circled the ...

The concept of semi-globally uniformly ultimately bounded (SGUUB) stability that is widely used for smooth nonlinear systems in lower triangular form is, for the first time, applied to the nonsmooth ...

Tonight, early rain in the south will move off to the east to leave clear spells, patchy cloud, and the odd shower. The north will continue to see a mix of clear spells and a few blustery showers ...

The spider species Walckenaer's studded triangular spider (Arkys walckenaeri) is found in Australia and belongs to the orb weaving family Arkyinae, also known as the triangular spiders.

This feature is new to the Boeing 737, and it's one of the few visual differences between the MAX and its predecessors. This distinctive design almost looks like shark teeth, leading some to wonder ...