3 papers
math.AG2026
Tangential morphisms via log arithmetic geometry
Yuichiro Hoshi, Makoto Matsumoto, Chikara Nakayama
We give a reformulation of tangential morphisms (which is a generalization of Deligne's tangential base point) via log geometry.
cs.MS2026
Some Patterns of Duplications in the outputs of Mersenne Twister Pseudorandom Number Generator MT19937
Alain Schumacher, Takuji Nishimura, Makoto Matsumoto
The Mersenne Twister MT19937 pseudorandom number generator, introduced by the last two authors in 1998, is still widely used. It passes all existing statistical tests, except for t…
math.CO2025
A categorical proof of the nonexistence of (120, 35, 10)-difference sets
Hiroki Kajiura, Makoto Matsumoto
A difference set with parameters is a subset of cardinality in a finite group of order , such that the number of occurrences of as the ra…