Concept

Quadratic equation

Related publications (63)

Maximal subgroups of direct products

We determine all maximal subgroups of the direct product G^n of n copies of a group G. If G is finite, we show that the number of maximal subgroups of G^n is a quadratic function of n if G is perfect, but grows exponentially otherwise. We deduce a theorem ...

1997

The N-city travelling salesman problem: statistical mechanics and metropolis algorithm

In any N-city travelling salesman problem there are (N-1)!/2 possible tours. We use the Metropolis algorithm to generate a sequence of such tours. This sequence may be viewed as the random evolution of a physical system in contact with a heat-bath. As the ...

1984

Cyclic Cleavage of Water into H2and O2by Visible Light with Coupled Redox Catalysts

Kuppuswamy Kalyanasundaram

A complete system for cleavage of water by light (250‐W lamp) comprises the catalysts Pt and RuO2 and the sensitizer Ru(bpy) as well as the acceptor methylviologen (MV2+). 150 ml of solution gave 0.6 ml of H2 and 0.3 ml of O2 in h. ...

1979

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