The aim of the Proceedings of the Japan Academy, Series A, is the rapid publication of original papers in mathematical sciences. The paper should be written in English or French (preferably in English), and at most 6 pages long when published. A paper that is a résumé or an announcement (i.e. one whose details are to be published elsewhere) can also be submitted.

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### Volume 45, Number 6

#### Publication Date: 1969

Angular cluster sets and oricyclic cluster sets

Niro Yanagihara; 423-428

A remark on a conjecture of paley

Masanobu Tsuzuki and Takehiro Misu; 429-432

On Dirichlet spaces and Dirichlet rings

Masatoshi Fukushima; 433-436

A class of purely discontinuous Markov processes with interactions, II

An improved proof for a theorem of N. Chomsky

Masako Takahashi; 441-442

A remark on the $\pi$-imbedding of homotopy spheres

Fumiko Bandō and Kiyoshi Katase; 443-445

Une remarque sur le théorème du “edge of the wedge” de A. Martineau

Mitsuo Morimoto; 446-448

Propagation of chaos for certain Markov processes of jump type with nonlinear generators, I

Hiroshi Tanaka; 449-452

On $q$-spaces

Tôru Chiba; 453-456

Paracompactness of product spaces

Jingoro Suzuki; 457-460

Some properties of Porges' functions

Hiroshi Iwata; 461-465

On the global solution of a certain nonlinear partial differential equation

Masayoshi Tsutsumi and Riichi Iino; 466-469

Convergence of transport process to diffusion

Toitsu Watanabe; 470-472

Tauber-Konstanten für die Verfahren $C_\alpha$, $A_\lambda$ und $L$, I

Hubert Tietz; 473-477

Tauber-Konstanten für die Verfahren $C_\alpha$, $A_\lambda$ und $L$, II

Hubert Tietz; 478-483