Fukutome

Frei C, Scholl R, Fukutome S, Schmidli J, Vidale PL (2005) Future change of precipitation extremes in Europe an intercomparison of scenarios from regional climate models. J Geophys Res 111, D06105, doi 10.1029/2005JD005965... 

Yamaguchi K, Fueno T, Fukutome H (1973) Chem Phys Lett 22 461... 

For Sz=0 problems, where the ground state is a singlet state, the use of such a wave function appeared to give significantly lower energies than the orthodox symmetry-adapted solution in many problems, as illustrated below. Later on other types of symmetry breaking have been discovered and Fukutome [7] has given a systematics of the various HF instabilities in a fundamental paper. 

As we will see in Section 5, it is not a straightforward matter to obtain conjugated polymers with a high content of pendent radicals either chemical introduction of radicals into polymers is inefficient or radical centres cannot be kept intact during polymerization. A possible way out of this problem has been proposed by Fukutome, namely, doping of closed-shell cross-conjugated polymers to generate the open-shell centres. The polaronic interaction in these systems has been discussed (Fukutome et al., 1987). 

The problem associated with the solution of the matrix equations (2.30) is to explore the energy surface for the total Hamiltonian H. to study its local minima and extreme values, and - if possible - to find the absolute energy minimum connected with the Hartree-Fock method. Thanks to Fukutome s work [26], this problem has now been essentially... 

Even if some interesting applications of the GHF-method had been found in solid-state theory [23,24], the applications to molecular systems were comparativlely few [40]. One major application to molecular systems had been worked out by Fukutome [40], and it was a study of the properties of the polyacetylene by means of the Pariser-Parr-Pople (PPP) approximation. It seemed hence desirable to make a molecular study based on ab-inttU) calculations to verify that one would get similar results and to get some experience in handling general Hartree-Fock orbitals of a complex nature, and for this purpose we started with some simple applications to atoms and to the BH molecule. 

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