Results 31 to 40 of about 1,305,913 (292)

DesMol2, an Effective Tool for the Construction of Molecular Libraries and Its Application to QSAR Using Molecular Topology

open access: yesMolecules, 2019
A web application, DesMol2, which offers two main functionalities, is presented: the construction of molecular libraries and the calculation of topological indices.
Inma García-Pereira   +4 more
doaj   +1 more source

𝜅-topologies for right topological semigroups [PDF]

open access: yesProceedings of the American Mathematical Society, 1992
Given a cardinal κ \kappa and a right topological semigroup S S with topology τ \tau , we consider the new topology obtained by declaring any intersection of at most κ \kappa members of τ \tau to be open.
Baker, John, Hindman, Neil, Pym, John
openaire   +2 more sources

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

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

Topological Metamaterials

open access: yesChemical Reviews, 2023
One of the most significant breakthroughs in physics of the last decade has been the discovery that materials with non-trivial topological properties for electronic, electromagnetic, acoustic and mechanical responses can be designed and manufactured at our will through engineered metamaterials (MMs).
Xiang Ni   +3 more
openaire   +3 more sources

A polynomial time algorithm for calculating the probability of a ranked gene tree given a species tree [PDF]

open access: yes, 2012
In this paper, we provide a polynomial time algorithm to calculate the probability of a {\it ranked} gene tree topology for a given species tree, where a ranked tree topology is a tree topology with the internal vertices being ordered. The probability of
Degnan, James H., Stadler, Tanja
core   +2 more sources

TOPOLOGICAL SYMMETRIES [PDF]

open access: yesModern Physics Letters A, 2000
We introduce the notion of a topological symmetry as a quantum mechanical symmetry involving a certain topological invariant. We obtain the underlying algebraic structure of the ℤ2-graded uniform topological symmetries of types (1, 1) and (2, 1). This leads to a novel derivation of the algebras of supersymmetry and p = 2 parasupersymmetry.
Mostafazadeh, A., Samani, K. Aghababaei
openaire   +2 more sources

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

Composite Topological Objects in Topological Superfluids [PDF]

open access: yesJournal of Experimental and Theoretical Physics, 2020
Superfluid phases of $^3$He discovered in 1972 opened the new area of the application of topological methods to condensed matter systems. Due to the multi-component order parameter which characterizes the broken $SO(3)\times SO(3)\times U(1)$ symmetry in these phases, there are many inhomogeneous objects -- textures and defects in the order parameter ...
openaire   +4 more sources

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