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 ...

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Brushless and brushed motors, as two common types of DC motors, exhibit significant differences in structure, working ...

The Global Electric Commutators Market is expected to grow at more than 5% CAGR from 2019 to 2031. It is expected to reach above USD 5.9 billion by 2031 from USD 3.5 billion in 2019. Exactitude ...

Scientific American is part of Springer Nature, which owns or has commercial relations with thousands of scientific publications (many of them can be found at www ...