In mathematics, the commutator gives an indication of the extent to which a certain binary operation fails to be commutative. There are different definitions...
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A commutator is a rotary electrical switch in certain types of electric motors and electrical generators that periodically reverses the current direction...
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algebra, the commutator subgroup or derived subgroup of a group is the subgroup generated by all the commutators of the group. The commutator subgroup is...
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Electric motor (section Commutator)
the technical problems of continuous rotation with the invention of the commutator, he called his early devices "electromagnetic self-rotors". Although they...
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dynamo is an electrical generator that creates direct current using a commutator. Dynamos were the first electrical generators capable of delivering power...
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In mathematical physics, the ternary commutator is an additional ternary operation on a triple system defined by [ a , b , c ] = a b c − a c b − b a c...
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Brushless DC electric motor (section Brush commutator)
speed and torque of the motor. It is an improvement on the mechanical commutator (brushes) used in many conventional electric motors. The construction...
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the commutator subspace of a two-sided ideal of bounded linear operators on a separable Hilbert space is the linear subspace spanned by commutators of...
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field coils are connected in series with the rotor windings through a commutator. It is often referred to as an AC series motor. The universal motor is...
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A mercury swivel commutator is a connector mainly used in animal experimentation to prevent the twisting of electrode wires attached to moving animals...
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Lie derivative (redirect from Lie commutator)
interior product defined above and it is clear whether [·,·] denotes the commutator or the Lie bracket of vector fields. Various generalizations of the Lie...
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mathematics, the commutator collecting process is a method for writing an element of a group as a product of generators and their higher commutators arranged...
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Angular momentum operator (redirect from Angular momentum commutator)
L_{x},\;\;\left[L_{z},L_{x}\right]=i\hbar L_{y},} where [ , ] denotes the commutator [ X , Y ] ≡ X Y − Y X . {\displaystyle [X,Y]\equiv XY-YX.} This can be...
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Lie bracket of vector fields (redirect from Commutator of vector fields)
bracket of vector fields, also known as the Jacobi–Lie bracket or the commutator of vector fields, is an operator that assigns to any two vector fields...
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alternators. Dynamos generate pulsing direct current through the use of a commutator. Alternators generate alternating current. Mechanically, a generator consists...
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Plugboard (redirect from Commutator (cryptology))
A plugboard or control panel (the term used depends on the application area) is an array of jacks or sockets (often called hubs) into which patch cords...
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used to denote the commutator. In group theory, the commutator [g,h] is commonly defined as g−1h−1gh. In ring theory, the commutator [a,b] is defined as...
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power switch known as the commutator is needed to keep the field correctly aligned across the spinning rotor. The commutator must become larger and more...
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current paths. The ends of the wire winding are connected to a commutator. The commutator allows each armature coil to be energized in turn and connects...
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current. The armature windings conduct AC even on DC machines, due to the commutator action (which periodically reverses current direction) or due to electronic...
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history. The Society publishes a quarterly online magazine, The Titanic Commutator, and operates a museum in Indian Orchard, Massachusetts, featuring artifacts...
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Heisenberg picture (section Commutator relations)
Schrödinger picture respectively, H is the Hamiltonian and [·,·] denotes the commutator of two operators (in this case H and A). Taking expectation values automatically...
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Jacobi identity (section Commutator bracket form)
Poisson brackets. In quantum mechanics, it is satisfied by operator commutators on a Hilbert space and equivalently in the phase space formulation of...
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expectation of any quantum mechanical operator and the expectation of the commutator of that operator with the Hamiltonian of the system d d t ⟨ A ⟩ = 1 i...
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pole design. At the zero-torque position, both commutator brushes are touching (bridging) both commutator plates, resulting in a short circuit. The power...
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specifically in group theory, a group is said to be perfect if it equals its own commutator subgroup, or equivalently, if the group has no non-trivial abelian quotients...
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of alternating current. Unlike a dynamo, a magneto does not contain a commutator to produce direct current. It is categorized as a form of alternator,...
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Anshel–Anshel–Goldfeld key exchange (redirect from Commutator key exchange)
Anshel–Anshel–Goldfeld protocol, also known as a commutator key exchange, is a key-exchange protocol using nonabelian groups. It was invented by Drs. Michael...
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Umdeutung paper (redirect from Heisenberg commutator)
relatively simple. Also included in the manuscript was the Heisenberg commutator, his law of multiplication needed to describe certain properties of atoms...
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Transfer (group theory) (section Commutator subgroup)
{\displaystyle \textstyle \prod _{i=1}^{n}h_{i}} in H/H′, where H′ is the commutator subgroup of H. The order of the factors is irrelevant since H/H′ is abelian...
5 KB (786 words) - 03:58, 13 July 2023