Here's What Happens To The Motors In Old Brushed Power Tools

Brushed motors are common in older power tools, but their design puts them on "borrowed time" from day one. Here is exactly ...
Nature

Commutators and Compactness in Schrödinger Operators

Schrödinger operators, typically formulated as −Δ + V where Δ denotes the Laplacian and V a potential function, are central to quantum mechanics and spectral theory. A key focus in recent ...
JSTOR Daily

Sharp Estimates for the Commutators of the Hilbert, Riesz Transforms and the Beurling-Ahlfors Operator on Weighted Lebesgue Spaces

We prove that the operator norm on weighted Lebesgue space L2(w) of the commutators of the Hilbert, Riesz and Beurling transforms with a BMO function b depends quadratically on the A2-characteristic ...
JSTOR Daily

WEAK TYPE ESTIMATES FOR COMMUTATORS ON HERZ-TYPE SPACES

We consider the commutator of Calderón-Zygmund operator and multiplication operator by b, that is, the commutator of Coifman, Rochberg and Weiss. We study the boundedness of this operator on the Hardy ...
AZOM

Fast Commutator Securing with New UV Adhesive

Panacol has developed Vitralit ® UV E-2113, a new UV acrylic adhesive that is ideal for the rapid securing of commutators. This UV adhesive can be applied robotically and cures within seconds under UV ...