教員情報 - 伊藤　公智 | 前橋工科大学

イトウ　マサトシ MASATOSHI ITO
伊藤　公智

所属

前橋工科大学工学部総合デザイン工学科

前橋工科大学附属機関基礎教育センター

前橋工科大学大学院工学研究科研究科共通（修士課程）

職種教授

学会発表
2025/06/23	The weighted power difference mean and its generalization (The 26th ILAS Conference 2025)
2024/11/07	The weighted power difference mean and its generalization (作用素論の最近の進展とその応用)
2024/09/05	The weighted power difference mean and its generalization (日本数学会2024年度秋季総合分科会)
2024/03/19	Inequalities among the weighted Heinz mean and related ones (日本数学会2024年度年会)
2023/11/23	Families of weighted operator means related to the weighted logarithmic and Heinz means (作用素論・作用素環論研究集会)
2021/09/16	A family of weighted operator means including the weighted Heinz and Lehmer means (日本数学会2021年度秋季総合分科会)
2020/03/18	Furuta type inequalities related to Ando-Hiai inequality with negative powers (日本数学会2020年度年会)
2019/10/25	A new family of weighted operator means including the weighted Heron, logarithmic and Heinz means (順序を用いた作用素の構造研究と関連する話題)
2019/09/19	A new family of weighted operator means including the weighted Heron, logarithmic and Heinz means (日本数学会2019年度秋季総合分科会)
2019/07/11	Estimations of the weighted power mean by the Heron mean and related inequalities for determinants and traces (The 22nd ILAS Conference 2019)
2018/10/26	Estimations of the weighted power mean by the Heron mean (作用素平均を利用した作用素の構造解析の研究と関連する話題)
2018/09/25	Estimations of the weighted power mean by the Heron mean (日本数学会2018年度秋季総合分科会)
2018/07/06	Estimations of the Lehmer mean by the Heron mean and their generalizations involving refined Heinz operator inequalities (Mathematical Inequalities and Applications 2018)
2017/11/18	Some results on estimations of the power difference mean and related ones (作用素論・作用素環論研究集会)
2017/10/24	Bounds and operator monotonicity of a generalized Petz-Hasegawa function (Banach空間に基づく技法による作用素論の最近の研究と関連する話題)
2017/10/24	On n-th generalized operator valued divergences (Banach空間に基づく技法による作用素論の最近の研究と関連する話題)
2017/09/13	Estimations of the Lehmer mean by the Heron mean (日本数学会2017年度秋季総合分科会)
2017/09/13	The n-th divergence on the path A ♮_{t} B (日本数学会2017年度秋季総合分科会)
2017/09/13	Upper and lower bounds, and operator monotonicity of an extension of the Petz-Hasegawa function (日本数学会2017年度秋季総合分科会)
2017/06/24	Estimations of power difference mean by Heron mean (The 21st ILAS Conference 2017)
2017/03/25	Relative operator entropies and operator valued divergences via divided difference (日本数学会2017年度年会)
2016/12/24	Estimations of power difference mean by Heron mean (第41回関東作用素論セミナー)
2016/11/11	Velocity and acceleration at a point of the path A ♯_{t,r} B (作用素論に基づく量子情報理論の幾何学的構造に関する研究と関連する話題)
2016/11/09	Estimations of power difference mean by Heron mean (作用素論に基づく量子情報理論の幾何学的構造に関する研究と関連する話題)
2016/10/09	Current topics on relative operator entropies and operator divergences (作用素論・作用素環論研究集会)
2016/09/16	Estimations of power difference mean by Heron mean (日本数学会2016年度秋季総合分科会)
2016/09/16	Velocity and acceleration at a point of the path A ♯_{t,r}B (日本数学会2016年度秋季総合分科会)
2016/03/18	Expanded forms of operator valued α-divergence and Petz-Bregman divergence (日本数学会2016年度年会)
2015/11/09	Some operator divergences based on Petz-Bregman divergence (順序と幾何による作用素の構造研究と関連する話題)
2015/09/15	Divergences on the paths A ♮_{x} B and A ♯_{x,r} B (日本数学会2015年度秋季総合分科会)
2015/03/22	Shannon type inequalities of a relative operator entropy including Tsallis and Rényi ones (日本数学会2015年度年会)
2014/11/28	Expansions of relative operator entropies and operator valued α-divergence (作用素の平均とその関連)
2014/09/27	Operator valued α-divergence and noncommutative ratio (日本数学会2014年度秋季総合分科会)
2014/09/04	Relations among relative operator entropies and operator divergences (第53回実函数論・函数解析学合同シンポジウム)
2014/08/06	Relations among relative operator entropies and operator divergences (The 19th ILAS Conference 2014)
2014/04/12	On relations between operator valued α-divergence and relative operator entropies (第19回関東作用素論セミナー)
2014/03/18	On relations between operator valued α-divergence and relative operator entropies (日本数学会2014年度年会)
2013/11/07	An extension of Tsallis relative operator entropy (作用素単調関数と関連する話題について)
2013/11/07	Generalizations of operator Shannon inequality based on Tsallis and Rényi relative entropies (作用素単調関数と関連する話題について)
2013/09/27	An extension of Tsallis relative operator entropy (日本数学会2013年度秋季総合分科会)
2013/09/27	Generalizations of operator Shannon inequality based on Tsallis and Rényi relative entropies (日本数学会2013年度秋季総合分科会)
2013/09/27	Matrix inequalities including grand Furuta inequality via Karcher mean (日本数学会2013年度秋季総合分科会)
2013/01/12	Recent topics on matrix inequalities via means of n-matrices (第7回関東作用素論セミナー)
2012/11/24	Recent topics on matrix inequalities via means of n-matrices (作用素論・作用素環論研究集会)
2012/06/28	Matrix inequalities including Furuta inequality via Riemannian mean of n-matrices (Positive Matrices and Operators: Recent Developments and Advances)
2011/11/14	Matrix inequalities including Furuta inequality via Riemannian mean of n-matrices (スペクトル、数域などの作用素の幾何的特性量を用いた作用素の構造研究)
2011/11/05	Matrix (operator) geometric mean and Furuta inequality (作用素論・作用素環論研究集会)
2011/09/30	Matrix inequalities including Furuta inequality via Riemannian mean of n-matrices (日本数学会2011年度秋季総合分科会)
2011/03/22	Geometric properties of positive definite matrices cone with respect to the Thompson metric (日本数学会2011年度年会)
2010/06/23	Recent researches on generalized Furuta-type operator functions (The 16th ILAS Conference 2010)
2009/10/29	Mean theoretic approach to a further extension of grand Furuta inequality (作用素論における非可換解析学の展望)
2009/09/26	Mean theoretic approach to a further extension of grand Furuta inequality (日本数学会2009年度秋季総合分科会)
2009/08/27	Mean theoretic approach to a further extension of grand Furuta inequality (関数解析学の研究とその応用)
2009/08/06	Recent researches on generalized Furuta-type operator functions (第48回実函数論・函数解析学合同シンポジウム)
2009/06/19	On a geometric property of positive definite matrices cone (KOTAC 2009: Operator Theory and Its Applications)
2009/03/28	Ando-Hiai inequality and a generalized Furuta-type operator function (日本数学会2009年度年会)
2009/03/28	On a geometric property of positive definite matrices cone (日本数学会2009年度年会)
2008/11/20	Ando-Hiai inequality and a generalized Furuta-type operator function (作用素論・作用素環論研究集会)
2008/10/30	A complement to monotonicity of generalized Furuta-type operator functions (作用素論への幾何学の応用)
2008/09/24	A complement to monotonicity of generalized Furuta-type operator functions (日本数学会2008年度秋季総合分科会)
2008/07/22	Extensions of the results on powers of p-hyponormal operators to class wF(p,r,q) operators (IWOTA 2008: The XIX-th International Workshop on Operator Theory and its Applications)
2008/03/25	Parallel results to that on powers of p-hyponormal, log-hyponormal and class A operators (日本数学会2008年度年会)
2008/01/30	Parallel results to that on powers of p-hyponormal, log-hyponormal and class A operators (線形作用素に関連する不等式とその応用)
2003/12/25	Relations among operator orders and operator inequalities (第12回関数空間セミナー)
2003/12/25	Relations between two operator inequalities via operator means (第12回関数空間セミナー)
2003/11/20	Relations between two operator inequalities via operator means (作用素不等式に関わる最近の話題)
2003/11/19	Relations among operator orders and operator inequalities (作用素不等式に関わる最近の話題)
2003/09/24	Relations between two operator inequalities via operator means (日本数学会2003年度秋季総合分科会)
2003/03/26	On classes of operators generalizing class A and paranormality (日本数学会2003年度年会)
2003/03/26	On generalized numerical range of the Aluthge transformation (日本数学会2003年度年会)
2003/03/26	Relations among orders and inequalities of operators (日本数学会2003年度年会)
2003/01/23	On classes of operators generalizing class A and paranormality and related results (作用素の構造と関連する最近の話題)
2003/01/23	On generalized numerical range of the Aluthge transformation (作用素の構造と関連する最近の話題)
2003/01/23	The polar decomposition of the product of operators and its applications to binormal and centered operators (作用素の構造と関連する最近の話題)
2002/11/01	Some classes of non-normal operators and their Aluthge transformations (作用素論・作用素環論研究集会)
2002/09/27	On a relation between polar decomposition and commutativity of operators (日本数学会2002年度秋季総合分科会)
2002/09/27	On binormality of the Aluthge transformation (日本数学会2002年度秋季総合分科会)
2002/07/05	Applications of operator inequalities to non-normal operators (KOTAC 2002: Operator Theory and Its Applications)
2002/06/10	Relations between two Furuta-type inequalities (The 10th ILAS Conference 2002: Challenges in Matrix Theory)
2002/03/28	Generalizations of results on relations between Furuta-type inequalities (日本数学会2002年度年会)
2002/03/28	On the polar decompositions of Aluthge transformation and powers of operators (日本数学会2002年度年会)
2001/12/11	Relations between two inequalities (B^{r/2}A^{p}B^{r/2})^{r/p+r} \geq B^{r} and A^{p} \geq (A^{p/2}B^{r}A^{p/2})^{p/p+r} and their applications (作用素および作用素不等式の最近の話題)
2001/10/05	Relations between two inequalities (B^{r/2}A^{p}B^{r/2})^{r/p+r} \geq B^{r} and A^{p} \geq (A^{p/2}B^{r}A^{p/2})^{p/p+r} and their applications (日本数学会2001年度秋季総合分科会)
2001/06/01	Order preserving operator inequalities and Aluthge transformation (KOTAC 2001: Operator Theory and Its Applications)
2001/03/26	Some order preserving operator inequality via Furuta inequality (日本数学会2001年度年会)
2000/12/24	On some classes of operators by Fujii and Nakamoto related to p-hyponormal and paranormal operators (第9回関数空間セミナー)
2000/11/30	On some classes of operators by Fujii and Nakamoto related to p-hyponormal and paranormal operators (作用素論の発展と諸問題)
2000/09/27	On some classes of operators by Fujii and Nakamoto related to p-hyponormal and paranormal operators (日本数学会2000年度秋季総合分科会)
2000/08/11	Properties on several classes including p-hyponormal and log-hyponormal operators (第35回関数解析研究会)
2000/06/22	Properties on several classes including p-hyponormal and log-hyponormal operators (KOTAC 2000: Operator Theory and Its Applications)
2000/03/27	Generalizations of the results on powers of p-hyponormal operators (日本数学会2000年度年会)
2000/01/07	Generalizations of the results on powers of p-hyponormal operators (作用素の不等式とその周辺)
1999/12/23	On powers of p-hyponormal and log-hyponormal operators (第8回関数空間セミナー)
1999/12/23	Properties on several classes including log-hyponormal operators (第8回関数空間セミナー)
1999/09/29	On some classes of operators including p-hyponormal and log-hyponormal operators (日本数学会1999年度秋季総合分科会)
1998/12/25	A subclass of paranormal including class of log-hyponormal and several related classes (第7回関数空間セミナー)
1998/12/24	Equivalence relation between an order preserving operator inequality and related operator functions (第7回関数空間セミナー)
1998/11/26	A subclass of paranormal including class of log-hyponormal and several related classes (作用素の不等式とその周辺)
1998/11/26	Equivalence relation between an order preserving operator inequality and related operator functions (作用素の不等式とその周辺)
1998/10/02	A subclass of paranormal including class of log-hyponormal and several related classes (日本数学会1998年度秋季総合分科会)
1998/10/02	Equivalence relation between an order preserving operator inequality and related operator functions (日本数学会1998年度秋季総合分科会)
1998/07/13	A subclass of paranormal including class of log-hyponormal (第33回関数解析研究会)