cover profile mathematics noology eusophy

outgrown mathematics

research papers in descending order

I shall not publish these kinds of research papers any more, because I have converted to mathematical psychology, esp. noology in 1992 (see my profile).
A pushing-up approach to the quasithin simple finite groups with solvable 2-local subgroups, J. Algebra 146, 1992
showed a method to determine quasithin finite simple groups of characteristic 2 type with solvable 2-local subgroups by making use of pushing up
On pairs of groups having a common 2-subgroup of odd indices II, Sci. Papers College Gen. Ed. Univ. Tokyo 40, 1990
continued the investigation in the first part to determine the structure of two finite groups each of which is core-free and is an extension of a common 2-group S by a cyclic group of odd prime power order but does not normalize any common nonidentity subgroup of S
A pushing up theorem for groups of characteristic 2 type, Sci. Papers College Gen. Ed. Univ. Tokyo 37, 1987
investigated in detail the structure of 2-irreducible and 2-constrained core-free finite groups G in which no nonidentity characteristic subgroup of a Sylow 2-subgroup is normal in G
On the 2-local structure of groups of characteristic 2 type, J. Algebra 108, 1987
showed that 2-local subgroups of finite groups of characteristic 2 type have properties similar to those of parabolic subgroups of Lie type groups of characteristic 2, and pointed out in this connection the importance of pushing up
A note on the thin finite simple groups, J. Algebra 102, 1986
showed a method to determine thin finite simple groups of characteristic 2 type with solvable 2-local subgroups by making use of pushing up
On pairs of groups having a common 2-subgroup of odd indices, Sci. Papers College Gen. Ed. Univ. Tokyo 35, 1985
investigated in detail the structure of two finite groups each of which is core-free and is an extension of a common 2-group S by a cyclic group of odd prime power order but does not normalize any common nonidentity subgroup of S
On the thin finite simple groups, J. Fac. Sci. Univ. Tokyo 32, 1985
showed a method to determine thin finite simple groups of characteristic 2 type with solvable 2-local subgroups by making use of weak closure, characteristic pair, and fusion
Pairs of groups having a common 2-subgroup of prime indices, J. Algebra 97, 1985
investigated in detail the structure of two finite groups each of which is core-free and is an extension of a common 2-group S by a group of odd prime order, but does not normalize any common nonidentity subgroup of S
Characteristic pairs for 2-groups, J. Algebra 94, 1985
showed a method to construct characteristic pairs which control Sylow 2-intersections, 2-fusion, and 2-factorization in finite groups of characteristic 2 type
Sylow 2-intersections, 2-fusion, and 2-factorizations in finite groups of characteristic 2 type, J. Math. Soc. Japan 35, 1983
showed general results on the relationship among Sylow p-intersection, p-fusion, and p-factorization in finite groups, and then showed that there exists a characteristic pair for groups of characteristic 2 type and p=2
On GF(2)-representations of finite groups, in Group Theory and Its Applications (ed. T. Kondo), Reports on Researches Supported by Grant-in-Aid for Scientific Research No. 56460001, 1983
investigated groups which act on an elementary abelian 2-group V and have an elementary abelian 2-subgroup A that satisfies |V:CV(A)|< |A|+1 and related problems
Control of Sylow 2-intersections in groups of Chev(2) type and groups of alternating type, Sci. Papers College Gen. Ed. Univ. Tokyo 32, 1982
investigated 2-subgroups which control Sylow 2-intersections in Lie type finite groups of characteristic 2 and alternating groups
A fusion theoretical approach to groups of type PSL3(2n) and PSp4(2n), Sci. Papers College Gen. Ed. Univ. Tokyo 30, 1980
characterized PSL3(2n) and PSp4(2n) by the property that Sylow 2-subgroups are products of two abelian subgroups
Standard subgroups of type Sp6(2) I-II, J. Fac. Sci. Univ. Tokyo 27, 1980
determined finite groups with a standard subgroup isomorphic to Sp6(2)
Finite groups with a standard subgroup isomorphic to PSU(4,2), Pacific. J. Math. 79, 1978
proved a theorem which is a key to the determination of finite groups with a standard subgroup isomorphic to PSU(4,2)
Finite groups with a standard subgroup isomorphic to Sp(4,2n), Japanese J. Math. 4, 1978
determined finite groups with a standard subgroup isomorphic to Sp(4,2n)
Characterizations of linear groups of low rank, J. Fac. Sci. Univ. Tokyo 23, 1976
doctoral dissertation (University of Tokyo), characterized Lie type simple finite groups of characteristic 2 and rank 2 by the structure of 2-local subgroups
Sylow 2-intersections and split BN-pairs of rank two, J. Fac. Sci. Univ. Tokyo 23, 1976
showed that a finite group has a BN-pair if the 2-subgroups which control Sylow 2-intersections have certain properties
Finite groups all of whose non-2-closed 2-local subgroups have Sylow 2-subgroups of class 2, J. Algebra 35, 1975
determined characteristic 2 type groups with Sylow 2-subgroups of nilpotency class 2
A characterization of the groups PSL(3,2n) and PSp(4,2n), J. Math. Soc. Japan 26, 1974
characterized PSL(3,2n) and PSp(4,2n) by the structure of 2-local subgroups
Finite groups with central Sylow 2-intersections, J. Math. Soc. Japan 25, 1973
determined finite groups in which every Sylow 2-intersection is contained in the center of some Sylow 2-subgroup
On maximal p-local subgroups of Sn and An, J. Fac. Sci. Univ. Tokyo 19, 1972
determined p-local subgroups of Sn and An
On p-strongly embedded subgroups of An and PSL(n,q), J. Fac. Sci. Univ. Tokyo 19, 1972
determined p-strongly embedded subgroups of An and PSL(n,q)

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