activity
20132022
collaborators

6 papers

math.CO2022

Construction of smooth rhythms through a monotone invariant measure

Fumio Hazama

The present article introduces the notion of quasi-smoothness of marked rhythms through a certain transformation , called reformation map. A marked rhythm consists of a rhythm…

math.CO2020

Boolean polynomial expression of the discrete average on the space of rhythms

Fumio Hazama

An infinite family of Boolean polynomials which correspond to the discrete average maps, defined in [2], is constructed and their algebraic and combinatorial properties are investi…

math.CO2017

Iterative method of construction of good rhythms

Fumio Hazama

On the space of rhythms of arbitrary length with a fixed number of onsets, a self map is constructed. It is shown that for any rhythm of the space there exists a n…

math.HO2014

Mathematical Analysis of Melodies: Slope and Discrete Frechet Distance

Fumio Hazama

A directed graph, called an M-graph, is attached to every melody. Our chief concern in this paper is to investigate (1) how the positivity of the slope of the M-graph is related to…

math.CO2014

Fixed-Point Problems in Discrete Tomography: Case of Square Windows

Fumio Hazama

A kind of fixed-point problem in the area of discrete tomography is proposed and investigated. Our chief concern in this paper is the case of square windows in the plane. Dealing w…

math.AG2013

The moduli space of polygons with area center

Fumio Hazama

A point is said to be an area center of a polygon if all of the triangles composed of and its edges have one and the same area. We construct a moduli space of such $…