Results 31 to 40 of about 475,676 (254)

On quantum deformations of AdS3 × S3 × T4 and mirror duality

open access: yesJournal of High Energy Physics, 2021
We consider various integrable two-parameter deformations of the AdS3 × S3 × T4 superstring with quantum group symmetry. Working on the string worldsheet in light-cone gauge and to quadratic order in fermions, we obtain their common massive tree-level ...
Fiona K. Seibold   +2 more
doaj   +1 more source

The MacMahon R-matrix

open access: yesJournal of High Energy Physics, 2019
We introduce an R-matrix acting on the tensor product of MacMahon representations of Ding-Iohara-Miki (DIM) algebra U q , t g l ^ ^ 1 $$ {U}_{q,t}\left({\widehat{\widehat{\mathfrak{gl}}}}_1\right) $$ . This R-matrix acts on pairs of 3d Young diagrams and
Hidetoshi Awata   +5 more
doaj   +1 more source

Finding identities and q-difference equations for new classes of bivariate q-matrix polynomials

open access: yesApplied Mathematics in Science and Engineering
This article introduces 2-variable q-Hermite matrix polynomials and delves into their complex representation, unravelling specific outcomes. The exploration encompasses the derivation of insightful identities for the q-cosine and q-sine analogues of the ...
Subuhi Khan, Hassan Ali, Mohammed Fadel
doaj   +1 more source

q-Dominant and q-recessive matrix solutions for linear quantum systems

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2007
In this study, linear second-order matrix $q$-difference equations are shown to be formally self-adjoint equations with respect to a certain inner product and the associated self-adjoint boundary conditions.
Douglas Anderson, L. M. Moats
doaj   +1 more source

Epigenetic blind spots – the role of DNA methylation dynamics in stem cell‐based models of embryogenesis

open access: yesFEBS Letters, EarlyView.
Embryo‐like structures (stembryos) are an innovative tool, but they are hindered by experimental variability and limited developmental potential. DNA methylation is crucial for mammalian development, but its status in stembryo models is poorly characterized.
Sara Canil   +4 more
wiley   +1 more source

The spectral radius of signless Laplacian matrix and sum-connectivity index of graphs

open access: yesAKCE International Journal of Graphs and Combinatorics, 2022
The sum-connectivity index of a graph G is defined as the sum of weights [Formula: see text] over all edges uv of G, where du and dv are the degrees of the vertices u and v in G, respectively.
A. Jahanbani, S. M. Sheikholeslami
doaj   +1 more source

Identification of a Shiga toxin A‐derived peptide internalized into Gb3 receptor‐bearing cells via interaction with the Shiga toxin B subunit

open access: yesFEBS Letters, EarlyView.
The process of internalization of the Shiga toxin A subunit via formation of a complex with the Shiga toxin B subunit, which specifically binds to the Gb3 receptor. The peptide is designed to act as a carrier of drugs into cancer cells. Here, we explored the potential of peptides derived from the catalytic A subunit of Shiga toxin (STxA) to be drug ...
Giulia Opassi   +6 more
wiley   +1 more source

A Proposed Novel Approach in Estimation of Unbiased Community Rarity Using the Locked Matrix and Tsallis Entropy

open access: yesForestist
The present study offers a new approach to measure unbiased rarity at the community level r q* . In this approach, the locked data matrix (matrix H) and the survey data matrix of the communities (matrix A) play the essential roles.
Kürşad Özkan
doaj   +1 more source

Some upper bounds for the signless Laplacian spectral radius of digraphs [PDF]

open access: yesTransactions on Combinatorics, 2019
Let $G=(V(G),E(G))$ be a digraph without loops and‎ ‎multiarcs‎, ‎where $V(G)=\{v_1,v_2,$ $\ldots,v_n\}$ and $E(G)$ are the‎ ‎vertex set and the arc set of $G$‎, ‎respectively‎. ‎Let $d_i^{+}$ be the‎ ‎outdegree of the vertex $v_i$‎.
Weige Xi, Ligong Wang
doaj   +1 more source

Balancing fit and parsimony to improve Q‐matrix validation

open access: yesBritish Journal of Mathematical and Statistical Psychology, 2020
The Q‐matrix identifies the subset of attributes measured by each item in the cognitive diagnosis modelling framework. Usually constructed by domain experts, the Q‐matrix might contain some misspecifications, disrupting classification accuracy.
Pablo Nájera   +3 more
openaire   +3 more sources

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