The standard LQR design technique is extended to systems with parametric uncertainty in the open-loop "A" matrix. This design, called the robust LQR (RLQR), guarantees the stability of the uncertain system, and the same level of performance robustness as standard LQR designs. To determine the properties of the RLQR design, simulations are performed on various mass-spring systems, and compared t...

we study topological von neumann regularity and principal von neumann regularity of banach algebras. our main objective is comparing these two types of banach algebras and some other known banach algebras with one another. in particular, we show that the class of topologically von neumann regular banach algebras contains all $c^*$-algebras, group algebras of compact abelian groups and cer...

abstract background von willebrand disease (vwd) is an autosomally inherited bleeding disorder with the prevalence of 1% based on population studies. the disease phenotype is due to quantitative and structural/functional defects in von willebrand factor (vwf) which is a glycoprotein with essential role as a carrier of fviii in circulation and also it serves the function as hemostasis regulator....