18 citations · 22 across the 9 of their papers we have counts for
9 papers
Strategic equivalence among hat puzzles of various protocols with many colors
Masaru Kada, Souji Shizuma
We discuss ``puzzles of prisoners and hats`` with infinitely many prisoners and more than two hat colors. Assuming that the set of hat colors is equipped with a commutative group s…
Remarks on the preservation of topological covering properties under Cohen forcing
Masaru Kada
Iwasa investigated the preservation of various covering properties of opological spaces under Cohen forcing. By improving the argument in Iwasa's paper, we prove that the Rothberge…
Preserving the Lindelöf property under forcing extensions
Masaru Kada
We investigate preservation of the Lindelöf property of topological spaces under forcing extensions. We give sufficient conditions for a forcing notion to preserve several strength…
The Efficiency of Quantum Identity Testing of Multiple States
Masaru Kada, Harumichi Nishimura, Tomoyuki Yamakami
We examine two quantum operations, the Permutation Test and the Circle Test, which test the identity of n quantum states. These operations naturally extend the well-studied Swap Te…
Covering a bounded set of functions by an increasing chain of slaloms
Masaru Kada
A slalom is a sequence of finite sets of length omega. Slaloms are ordered by coordinatewise inclusion with finitely many exceptions. Improving earlier results of Mildenberger, She…
How many miles to beta-X? -- d miles, or just one foot
Masaru Kada, Kazuo Tomoyasu, Yasuo Yoshinobu
It is known that the Stone-Cech compactification of a metrizable space X is approximated by the collection of Smirnov compactifications of X for all compatible metrics on X. If we…