Results 41 to 50 of about 618,549 (300)

An Application of Total-Colored Graphs to Describe Mutations in Non-Mendelian Genetics

open access: yesMathematics, 2019
Any gene mutation during the mitotic cell cycle of a eukaryotic cell can be algebraically represented by an isotopism of the evolution algebra describing the genetic pattern of the inheritance process.
Raúl M. Falcón   +2 more
doaj   +1 more source

Topological Digital Topology [PDF]

open access: yes, 2003
The usefulness of topology in science and mathematics means that topological spaces must be studied, and computers should be used in this study. We discuss how many useful spaces (including all compact Hausdorff spaces) can be approximated by finite spaces, and these finite spaces are completely determined by their specialization orders.
openaire   +2 more sources

On the topological matrix and topological indices [PDF]

open access: yesAKCE International Journal of Graphs and Combinatorics, 2020
The topological matrix of a graph are indexed by . If then the of is 1 and the of is 0 for otherwise. In this paper, an upper bound for this topological matrix is found and the weighted topological matrix is defined. Also, some inequalities for the topological energy and the weighted Laplacian topological energy and of are obtained.
openaire   +3 more sources

Boundedness of Multidimensional Dunkl-Hausdorff Operators

open access: yesJournal of Function Spaces, 2020
In the present paper, we introduce the multidimensional Dunkl-Hausdorff operator ℋκ and we give simple sufficient conditions so that these operators be bounded on the weighted lebesgue spaces Lκpℝn and in the Hardy space Hκ1ℝn associated with the Dunkl ...
Radouan Daher, Faouaz Saadi
doaj   +1 more source

The Mackey topology as a mixed topology [PDF]

open access: yesProceedings of the American Mathematical Society, 1975
A theorem on the coincidence of a mixed topology and the Mackey topology is given. The techniques of partitions of unity are used. As a corollary, a result of LeCam and Conway on the strict topology is obtained. Similar methods are applied to obtain a theorem of Collins and Dorroh.
openaire   +2 more sources

Cellular structures in Topology [PDF]

open access: yes, 1990
This book describes the construction and the properties of CW-complexes. These spaces are important because firstly they are the correct framework for homotopy theory, and secondly most spaces that arise in pure mathematics are of this type.
Renzo Piccinini   +4 more
core   +1 more source

From Trees to Barcodes and Back Again: Theoretical and Statistical Perspectives

open access: yesAlgorithms, 2020
Methods of topological data analysis have been successfully applied in a wide range of fields to provide useful summaries of the structure of complex data sets in terms of topological descriptors, such as persistence diagrams.
Lida Kanari, Adélie Garin, Kathryn Hess
doaj   +1 more source

Topologically semisimple and topologically perfect topological rings

open access: yesPublicacions Matemàtiques, 2022
LaTeX 2e with tikz-cd, 69 pages; v.3: new Section 13 inserted, final Section 14 (former 13) rewritten with much more complete picture obtained using new results of arXiv:1911.11720, Lemma 7.2 deleted as no longer relevant, Examples 3.7(2) and 9.4 inserted; v.4: Remarks 3.11 and 7.2 inserted; v.5: misprints corrected, references updated, a reference to ...
Leonid Positselski, Jan Šťovíček
openaire   +5 more sources

Smooth boundary topology optimization applied to an electrostatic actuator [PDF]

open access: yes, 2008
Smooth boundary topology optimization (SBTO) avoids many of the problems encountered by conventional cell based systems coupled with material homogenization or density method. Shape optimization becomes part of topology optimization. The effectiveness of
Lowther, D. A.   +2 more
core   +2 more sources

Dilemmas and countermeasures of Fe-based biomaterials for next-generation bone implants

open access: yesJournal of Materials Research and Technology, 2022
Fe-based biodegradable materials as next-generation bone implants attract considerable attentions due to outstanding mechanical properties and favorable biocompatibility.
Sheng Li   +6 more
doaj   +1 more source

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