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19.495  Articles
1 of 1.951 pages  |  10  records  |  more records»
The purpose of this paper is to study the existence of square roots and more generally n-th roots in pseudo-Michael algebras. We examine several conditions that imply the existence of n-th roots and hermitian n-th roots. We also simplify the proofs of the... see more

The purpose of this paper is to study the existence of square roots and more generally n-th roots in pseudo-Michael algebras. We examine several conditions that imply the existence of n-th roots and hermitian n-th roots. We also simplify the proofs of the... see more

Modal pseudocomplemented De Morgan algebras (or mpM-algebras) were investigated in A. V. Figallo, N. Oliva, A. Ziliani, Modal pseudocomplemented De Morgan algebras, Acta Univ. Palacki. Olomuc., Fac. rer. nat., Mathematica 53, 1 (2014), pp. 65–79, and they... see more

In this paper we study pseudo-BCH algebras which are semilattices or lattices with respect to the natural relations =; we call them pseudo-BCH join-semilattices, pseudo-BCH meet-semilattices and pseudo-BCH lattices, respectively. We prove that the class o... see more

The purpose of this paper is to prove that if the Pták function p is an operator norm, on \mathcal{B}(E), associated to a norm | . |, then (E, | . |) is a pseudo-Hilbert space. As a consequence, we obtain that if \mathcal{B}(E)  is a C*-algebra, then... see more

This article examines the valuable contribution that Katherine Bradley and her niece Edith Cooper made to the vast tradition of queer Sapphism in Long Ago (1889), their first volume of poetry published under the collaborative pseudonym of Michael Field. T... see more

Con el fin de evaluar el riesgo para el ecosistema marino y la salud humana, se estudió la diversidad y la morfología de las diatomeas del género Pseudo-nitzschia del Parque Nacional Sistema Arrecifal Veracruzano, en el suroeste del Golfo de México. Se re... see more

Due to the fact that the abstract mathematical notions are often hard to grasp by students, without linking them to a specific physical representation or correlate them with regular facts, our team came up with the idea to create and implement a set of in... see more

The study of the differential-algebraic boundary value problems was established in the papers of K. Weierstrass, M.M. Lusin and F.R. Gantmacher. Works of S. Campbell, Yu.E. Boyarintsev, V.F. Chistyakov, A.M. Samoilenko, M.O. Perestyuk, V.P. Yakovets, O.A.... see more

1 of 1.951 pages  |  10  records  |  more records»