Results 61 to 70 of about 39,390 (167)

Assessment of Sunshine Duration for Various Time Resolutions Based on Pyranometric Data (An Example from Temperate Transition Climate of Central Europe)

Atmosphere
Sunshine duration (SD) is an essential meteorological variable. It represents the sum of time for which direct solar radiation with an intensity above 120 W∙m−2 reaches the Earth’s surface.
Krzysztof Błażejczyk, Jarosław Baranowski, Anna Błażejczyk   +2 more
doaj   +1 more source

Order Ideals on Lexicographic Direct Sum of Three Totally Ordered Abelian Groups

Cauchy: Jurnal Matematika Murni dan Aplikasi
Order ideals play an important role in the study of abstract algebra, especially in the study of ordered groups. In this paper, we focus on the study of order ideals in lexicographic direct sums of totally ordered Abelian groups.
Dian Latifah, Sumanang Muhtar Gozali, Rizky Rosjanuardi, Imam Nugraha Albania   +3 more
doaj   +1 more source

On Application of Discrete Logarithms in Information - Hiding and Knapsack Problem with New Properties of Sk-Sets

Ibn Al-Haitham Journal for Pure and Applied Sciences, 2017
Discrete   logarithms  are applied      in many    cryptographic problems  . For instance ,   in public   key .  and for construction of sets with disti nct sums of  k-clcments.
A.M.H Rizak AI-Rammahi
doaj  

Direct Sum Cancellation of Noetherian Modules

Journal of Algebra, 1998
Given a ring \(R\) with unit element and left \(R\)-modules \(A\), \(B\) and \(C\) that satisfy \(A\oplus C\simeq B\oplus C\), it is generally not true that \(A\simeq B\). Nevertheless, whenever \(C\) is noetherian, then \(A\) and \(B\) turn out to be indistinguishable by functions on the category of \(R\)-modules that respect short exact sequences ...
openaire   +2 more sources

Strict convexity of absolute norms on and direct sums of banach spaces

Journal of Inequalities and Applications, 2002
We show that an absolute normalized norm on is strictly convex if and only if the corresponding convex function on is strictly convex. In this context the monotonicity property of these norms is discussed.
Kato Mikio, Saito Kichi-Suke, Takahashi Yasuji   +2 more
doaj  

Daugavet centers and direct sums of Banach spaces

Open Mathematics, 2010
Bosenko Tetiana
doaj   +1 more source

Siblings of direct sums of chains

Archive for Mathematical Logic
We prove that a countable direct sum of chains has either one, countably many or else continuum many isomorphism classes of siblings. This proves Thomassé's conjecture for such structures. Further, we show that a direct sum of chains of any cardinality has one or infinitely many siblings, up to isomorphism.
openaire   +2 more sources

Representative sets and direct sums [PDF]

Proceedings of the American Mathematical Society, 1964
openaire   +2 more sources

The Category of Anyon Sectors for Non-Abelian Quantum Double Models. [PDF]

Commun Math Phys
Bols A, Hamdan M, Naaijkens P, Vadnerkar S.   +3 more
europepmc   +1 more source

Fully Transitivity of Direct Sums and Direct Products of QTAG-Modules

Asia Pacific Journal of Mathematics, 2019
Ayazul Hasan, Rafiquddin
doaj   +1 more source