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

著書・論文歴
2022/09	論文	A family of weighted operator means including the weighted Heinz and Lehmer means Annals of Functional Analysis 13 (4),Article 69 (単著)
2021/04	論文	Furuta type inequalities related to Ando-Hiai inequality with negative powers Scientiae Mathematicae Japonicae 84 (1),23-32頁 (共著)
2020/03	論文	A new family of weighted operator means including the weighted Heron, logarithmic and Heinz means Journal of Mathematical Inequalities 14 (1),175-186頁 (単著)
2019/07	論文	Estimations of the weighted power mean by the Heron mean and related inequalities for determinants and traces Mathematical Inequalities & Applications 22 (3),949-966頁 (単著)
2019/04	論文	Velocity and acceleration on the paths A ♮_{t} B and A ♯_{t,r} B Scientiae Mathematicae Japonicae 82 (1),7-17頁 (共著)
2018/10	論文	Estimations of the Lehmer mean by the Heron mean and their generalizations involving refined Heinz operator inequalities Advances in Operator Theory 3 (4),763-780頁 (単著)
2018/01	論文	Upper and lower bounds, and operator monotonicity of an extension of the Petz-Hasegawa function Mathematical Inequalities & Applications 21 (1),155-164頁 (共著)
2017/09	論文	Estimations of power difference mean by Heron mean Journal of Mathematical Inequalities 11 (3),831-843頁 (単著)
2017/08	論文	Some operator divergences based on Petz-Bregman divergence Scientiae Mathematicae Japonicae 80 (2),161-170頁 (共著)
2015/10	論文	On relations between operator valued α-divergence and relative operator entropies Scientiae Mathematicae Japonicae 78 (2),215-228頁 (共著)
2015/06	論文	Expanded relative operator entropies and operator valued α-divergence Journal of Mathematics and System Science 5 (6),215-224頁 (共著)
2015	論文	Shannon type inequalities of a relative operator entropy including Tsallis and Rényi ones Annals of Functional Analysis 6 (4),289-300頁 (共著)
2014/06	論文	Matrix inequalities including grand Furuta inequality via Karcher mean Journal of Mathematical Inequalities 8 (2),279-285頁 (単著)
2013/12	論文	Extensions of Tsallis relative operator entropy and operator valued distance Scientiae Mathematicae Japonicae 76 (3),427-435頁 (共著)
2013/11	論文	Generalizations of operator Shannon inequality based on Tsallis and Rényi relative entropies Linear Algebra and its Applications 439 (10),3148-3155頁 (共著)
2012/12	論文	On Yuan-Gao's ``complete form" of Furuta inequality Operators and Matrices 6 (4),869-875頁 (共著)
2012/12	論文	Relative operator entropy, operator divergence and Shannon inequality Scientiae Mathematicae Japonicae 75 (3),289-298頁 (共著)
2012/09	論文	Matrix inequalities including Furuta inequality via Riemannian mean of n-matrices Journal of Mathematical Inequalities 6 (3),481-491頁 (単著)
2011/10	論文	Geometric properties of positive definite matrices cone with respect to the Thompson metric Linear Algebra and its Applications 435 (8),2054-2064頁 (共著)
2010/09	論文	Mean theoretic approach to a further extension of grand Furuta inequality Journal of Mathematical Inequalities 4 (3),325-333頁 (共著)
2009/09	論文	Operator inequalities related to Ando-Hiai inequality Scientiae Mathematicae Japonicae 70 (2),229-232頁 (共著)
2009/07	論文	Ando-Hiai inequality and a generalized Furuta-type operator function Scientiae Mathematicae Japonicae 70 (1),43-52頁 (共著)
2009/01	論文	A complement to monotonicity of generalized Furuta-type operator functions Linear Algebra and its Applications 430 (1),544-546頁 (共著)
2009	論文	On a geometric property of positive definite matrices cone Banach Journal of Mathematical Analysis 3 (2),64-76頁 (共著)
2009	論文	Parallel results to that on powers of p-hyponormal, log-hyponormal and class A operators Acta Scientiarum Mathematicarum (Szeged) 75 (1-2),299-312頁 (単著)
2005/12	論文	Relations between two operator inequalities motivated by the theory of operator means Integral Equations and Operator Theory 53 (4),527-534頁 (単著)
2004/08	論文	On the polar decomposition of the product of two operators and its applications Integral Equations and Operator Theory 49 (4),461-472頁 (共著)
2004	論文	On the polar decomposition of the Aluthge transformation and related results Journal of Operator Theory 51 (2),303-319頁 (共著)
2003/09	論文	On generalized numerical range of the Aluthge transformation Linear Algebra and its Applications 370,147-161頁 (共著)
2003/03	論文	On classes of operators generalizing class A and paranormality Scientiae Mathematicae Japonicae 57 (2),287-297頁 (単著)
2003	論文	Generalizations of results on relations between Furuta-type inequalities Acta Scientiarum Mathematicarum (Szeged) 69 (3-4),853-862頁 (共著)
2002/12	論文	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 Integral Equations and Operator Theory 44 (4),442-450頁 (共著)
2002/01	論文	Some order preserving operator inequality via Furuta inequality Scientiae Mathematicae Japonicae 55 (1),25-32頁 (単著)
2001	論文	Generalizations of the results on powers of p-hyponormal operators Journal of Inequalities and Applications 6 (1),1-15頁 (単著)
2000/11	論文	On some classes of operators by Fujii and Nakamoto related to p-hyponormal and paranormal operators Scientiae Mathematicae 3 (3),319-334頁 (単著)
1999/10	論文	Several properties on class A including p-hyponormal and log-hyponormal operators Mathematical Inequalities & Applications 2 (4),569-578頁 (単著)
1999	論文	Some classes of operators associated with generalized Aluthge transformation SUT Journal of Mathematics 35 (1),146-165頁 (単著)
1998/12	論文	A subclass of paranormal operators including class of log-hyponormal and several related classes Scientiae Mathematicae 1 (3),389-403頁 (共著)
1998/08	論文	Equivalence relation between generalized Furuta inequality and related operator functions Scientiae Mathematicae 1 (2),257-259頁 (共著)