activity
20142025
most citedModular hierarchical and power-law small-world networks bear structural optima for minimal first passage times and cover time

8 citations · 35 across the 37 of their papers we have counts for

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Showing 2020Show all

8 papers · 1 filter

math.NT2020

Connectors of the Ohno relation for parametrized multiple zeta series

Hideki Murahara, Tomokazu Onozuka

The Ohno relation is a well known relation in the theory of multiple zeta values. Recently, Seki and Yamamoto introduced a connector method and gave its succinct proof. On the othe…

math.NT2020

Generating functions for sums of polynomial multiple zeta values

Minoru Hirose, Hideki Murahara, Shingo Saito

The sum formulas for multiple zeta(-star) values and symmetric multiple zeta(-star) values bear a striking resemblance. We explain the resemblance in a rather straightforward manne…

math.NT2020

Algebraic aspects of rooted tree maps

Hideki Murahara, Tatsushi Tanaka

Based on the Connes--Kreimer Hopf algebra of rooted trees, the rooted tree maps are defined as linear maps on noncommutative polynomial algebra in two indeterminates. It is known t…

math.NT2020

On a basis for Euler-Zagier double zeta functions with non-positive components

Hideki Murahara, Takashi Nakamura

For a non-negative integer , let , where the right-hand side is the vector space spanned by the Euler-Zagier double z…

math.NT2020

On a generalization of the cyclic sum formula for finite multiple zeta and zeta-star values

Hideki Murahara

The cyclic sum formulas for multiple zeta and zeta-star values were respectively proved by Hoffman and Ohno, and Ohno and Wakabayashi. Kawasaki and Oyama obtained an analogous form…

math.NT2020

Cyclic relation for multiple zeta functions

Hideki Murahara, Tomokazu Onozuka

The cyclic relation obtained in a study by Hirose, Murakami, and the first-named author, is a wide class of relations, which includes the well-known cyclic sum formula for multiple…

math.NT2020★ 6 cited

On variants of symmetric multiple zeta-star values and the cyclic sum formula

Minoru Hirose, Hideki Murahara, Masataka Ono

The -adic symmetric multiple zeta values were defined Jarossay, which have been studied as a real analogue of -adic finite multiple zeta values. In this paper, w…

math.NT2020

On the -points of symmetric sum of multiple zeta function

Hideki Murahara, Tomokazu Onozuka

In this paper, we present some results on the -points of the symmetric sum of the Euler-Zagier multiple zeta function. Our first three results are for the -points free region…