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Volume 47 (1995)
- Issue 4 Pages 441-
- Issue 3 Pages 297-
- Issue 2 Pages 151-
- Issue 1 Pages 1-
Predecessor
Volume 47, Issue 1
Displaying 1-9 of 9 articles from this issue
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GAVIN BROWN, ANTHONY H. DOOLEY, JANE LAKE1995Volume 47Issue 1 Pages 1-13
Published: March 01, 1995
Released on J-STAGE: May 22, 2009
JOURNAL FREE ACCESSWe show how to calculate the ratio sets of G-measures as limit points of infinite products of the associated g-functions. In particular, we show that every g-measure is of type III1View full abstractDownload PDF (451K) -
Dedicated to Professor Shoshichi Kobayashi on his sixtieth birthdayYOSHIHIKO SUYAMA1995Volume 47Issue 1 Pages 15-29
Published: March 01, 1995
Released on J-STAGE: May 22, 2009
JOURNAL FREE ACCESSWe give a new diffeotopy theorem on the standard sphere, and an estimate for some geometric invariants concerning positively curved Riemannian manifold. By using these results we prove that a complete, simply connected and 0.654-pinched Riemannian manifold is diffeomorphic to the standard sphere.View full abstractDownload PDF (443K) -
WAYNE ROSSMAN1995Volume 47Issue 1 Pages 31-54
Published: March 01, 1995
Released on J-STAGE: May 22, 2009
JOURNAL FREE ACCESSWe construct new examples of immersed minimal surfaces with catenoid ends and finite total curvature, of both genus zero and higher genus. In the genus zero case, we classify all such surfaces with at most 2n+1 ends, and with symmetry group the natural Z2 extension of the dihedral group Dn
The surfaces are constructed by proving existence of the conjugate surfaces. We extend this method to cases where the conjugate surface of the fundamental piece is noncompact and is not a graph over a convex plane domain.View full abstractDownload PDF (3808K) -
TOKUSHI SATO1995Volume 47Issue 1 Pages 55-80
Published: March 01, 1995
Released on J-STAGE: May 22, 2009
JOURNAL FREE ACCESSWe are concerned with the existence of positive solutions with prescribed weak isolated singularities to some semilinear elliptic equations. The existence property differs with the behavior of the nonlinear term. Under the positivity assumption and a growth condition on the nonlinear term, we obtain not only solutions with a finite number of singularities but also those with infinitely many singularities. We show also that, for some nonlinear terms which changes sign, there is no solution with prescribed singular behavior.View full abstractDownload PDF (815K) -
Yu CHEN1995Volume 47Issue 1 Pages 81-97
Published: 1995
Released on J-STAGE: March 18, 2014
JOURNAL FREE ACCESSWe show that a simple adjoint Chevalley group over a Q-algebra without zero divisors and its elementary subgroup have isomorphic automorphism groups which are generated by the inner automorphisms, the graph automorphisms and the ring automorphisms. This leads to an expression for every automorphism as the composite of a ring automorphism and an automorphism of an algebraic group, which is analogous to the Borel-Tits theorem and the Margulis theorem for the automorphisms of rational subgroups of algebraic groups over certain fields.View full abstractDownload PDF (1261K) -
Dedicated to Professor Takeshi Kotake on his sixtieth birthdayTAKEYUKI NAGASAWA1995Volume 47Issue 1 Pages 99-103
Published: March 01, 1995
Released on J-STAGE: May 22, 2009
JOURNAL FREE ACCESSWe show that bounded solutions of an initial(-boundary) value problem for certain semilinear heat equations always come from the corresponding ordinary differential equations. As a consequence we immediately get a theorem of Kneser's type which was showed by Ballotti and Kikuchi in different methods.View full abstractDownload PDF (167K) -
OSAMU HATORI1995Volume 47Issue 1 Pages 105-115
Published: March 01, 1995
Released on J-STAGE: May 22, 2009
JOURNAL FREE ACCESSWe study functions which operate on a Banach space of bounded functions defined on a discrete space. As a consequence we characterize functions which operate on the algebra of the translation invariant operators from Lp(G) to L2(G) for 1<p<2 and for a compact abelian group G.View full abstractDownload PDF (465K) -
MARCOS DAJCZER, RUY TOJEIRO1995Volume 47Issue 1 Pages 117-123
Published: March 01, 1995
Released on J-STAGE: May 22, 2009
JOURNAL FREE ACCESSIn this paper we show that the projection of the Hopf fibration establishes a one-to-one correspondence between the set of symmetric flat submanifolds in Euclidean sphere and the set of totally real flat submanifolds in complex projective space with the same codimension. We also show that any complete totally real submanifold in complex projective space with mean curvature of constant length and equal dimension and codimension is a flat torus.View full abstractDownload PDF (269K) -
CATHERINE BOUVIER, GÉRARD GONZALEZ-SPRINBERG1995Volume 47Issue 1 Pages 125-149
Published: March 01, 1995
Released on J-STAGE: May 22, 2009
JOURNAL FREE ACCESSWe give a geometric interpretation of the minimal generating system of the semi-group defined by a rational polyhedral cone in any dimension, via a natural bijection with the set of essential divisors of equivariant desingularizations of the toric variety associated to the cone. We prove, for varieties of dimension three, the existence of a desingularization associated to a regular fan whose edges contain the elements of the minimal generating system, its uniqueness for canonical toric varieties of index at least two, and the uniqueness in general up to flops. We give an example of non-existence of such desingularizations in dimension four.View full abstractDownload PDF (1159K)
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