The Fallacy of Nuclear Primacy

"The United States is easily deterred by any nuclear armed state, even by the most primitive and diminutive of nuclear arsenals." Bruce G. Blair is the President of the World Security Institute. Chen Yali is the editor in chief of Washington Observer

Poisson approximation of the length spectrum of random surfaces

Multivariate Poisson approximation of the length spectrum of random surfaces is studied by means of the Chen-Stein method. This approach delivers simple and explicit error bounds in Poisson limit theorems. They are used to prove that Poisson approximation applies to curves of length up to order $o(\log\log g)$ with $g$ being the genus of the surface.Comment: 22 pages, 2 figures. To appear in Indiana Univ. Math.

Property A and the operator norm localization property for discrete metric spaces

We study property A defined by G. Yu and the operator norm localization property defined by X. Chen, R. Tessera, X. Wang, and G. Yu. These are coarse geometric properties for metric spaces which have applications to operator K-theory. It is proved that the two properties are equivalent for discrete metric spaces with bounded geometry.Comment: 10 pages. In this revised version, we make comments on two other coarse geometric properties defined by Brodzki, Niblo, Spakula, Willett, and Wrigh

Faculty recital: Hung-Kuan Chen, piano, October 29, 1986

This is the concert program of the Faculty Recital: Hung-Kuan Chen, piano performance on Wednesday, October 29, 1986 at 8:00 p.m., at the Concert Hall, 855 Commonwealth Avenue. Works performed were Sonata Op. 111 in C minor by Ludwig van Beethoven, "Gaspard de la Nuit" by Maurice Ravel, and Sonata in G minor by Franz Liszt. Digitization for Boston University Concert Programs was supported by the Boston University Humanities Library Endowed Fund

Faculty recital: Hung-Kuan Chen, piano, December 4, 1986

This is the concert program of the Faculty Recital: Hung-Kuan Chen, piano performance on Wednesday, December 4, 1986 at 8:00 p.m., at the Concert Hall, 855 Commonwealth Avenue. Works performed were the folowing by Ludwig van Beethoven: Sonata, Op. 14, No. 2 in G major, Sonata, op. 7 in E-flat major, Sonata, Op. 10, No. 2 in F major, and Sonata, Op. 110 in A-flat major. Digitization for Boston University Concert Programs was supported by the Boston University Humanities Library Endowed Fund

Improved Chen-Ricci inequality for curvature-like tensors and its applications

We present Chen-Ricci inequality and improved Chen-Ricci inequality for curvature like tensors. Applying our improved Chen-Ricci inequality we study Lagrangian and Kaehlerian slant submanifolds of complex space forms and C-totally real submanifolds of Sasakian space forms