The Kyoto Journal of Mathematics, formerly The Journal of Mathematics of Kyoto University, has a long and distinguished history of publishing high-quality and original mathematical research. A quarterly, it publishes original research papers at the forefront of pure mathematics, including surveys that contribute to advances in pure mathematics.

### Volume 53, Number 4

Editorial Board

#### Articles

Sobolev regularity for the Monge–Ampère equation in the Wiener space

Vladimir I. Bogachev and Alexander V. Kolesnikov; 713-738

The classification of semistable plane sheaves supported on sextic curves

Mario Maican; 739-786

Krein’s strings whose spectral functions are of polynomial growth

Shinichi Kotani; 787-814

A theta expression of the Hilbert modular functions for $\sqrt{5}$ via the periods of $K3$ surfaces

Atsuhira Nagano; 815-843

On higher Fitting ideals of Iwasawa modules of ideal class groups over imaginary quadratic fields and Euler systems of elliptic units

Tatsuya Ohshita; 845-887

#### Backmatter

Index to Volume 53