Results 31 to 40 of about 1,035,661 (292)
On the cardinality of complex matrix scalings
Special Matrices, 2016 We disprove a conjecture made by Rajesh Pereira and Joanna Boneng regarding the upper bound on the number of doubly quasi-stochastic scalings of an n × n positive definite matrix.
Hutchinson George
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Products of stochastic matrices and applications
International Journal of Mathematics and Mathematical Sciences, 1989 This paper deals with aspects of the limit behaviour of products of nonidentical finite or countable stochastic matrices (Pn). Applications are given to nonhomogeneous Markov models as positive chains, some classes of finite chains considered by Doeblin ...
Harry Cohn
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Parameterized algorithms for block-structured integer programs with large entries [PDF]
TheoretiCSWe study two classic variants of block-structured integer programming. Two-stage stochastic programs are integer programs of the form $\{A_i \mathbf{x} + D_i \mathbf{y}_i = \mathbf{b}_i\textrm{ for all }i=1,\ldots,n\}$, where $A_i$ and $D_i$ are bounded ...
Jana Cslovjecsek +4 more
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Stochastic matrices. I. Similarity via stochastic transforms [PDF]
, 1980 Suppose two stochastic matrices A and B of order n are similar in the set of all matrices of order n over a real field R. We obtain sufficient conditions in order that A and B be right similar, left similar, and similar in the set of all stochastic ...
Johnsen, E.C., E.C. Johnsen
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Product of random stochastic matrices and distributed averaging [PDF]
, 2011 This thesis is mainly concerned with the study of product of random stochastic matrices and random weighted averaging dynamics. It will be shown that a generalization of a fundamental result in the theory of ergodic Markov chains not only holds for ...
Touri, Behrouz
core
Design and analysis strategies for robust microbiome ageing research
FEBS Letters, EarlyView.The gut microbiome changes with age and associates with age‐related morbidity and mortality, establishing it as a potential biomarker and intervention target for ageing. Realising this potential requires methodological rigour, yet distinguishing biological signals from methodological artefacts remains challenging across cohorts. This review provides an
Mark Olenik +5 more
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Engineering peptides into antibodies—opportunities and strategies for therapeutic innovation
FEBS Letters, EarlyView.Peptides and antibodies occupy complementary therapeutic niches. Peptides recognize difficult targets in a compact format, while antibodies add specificity, long half‐life, and effector functions. This review examines strategies that merge both modalities—peptide grafting into loops, terminal and Fc fusions, and bioconjugation—highlighting how ...
Jinling Wang +2 more
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Generalized inverses of stochastic matrices [PDF]
, 1975 This paper describes all stochastic matrices which have a stochastic semi-inverse and gives a method of constructing all such inverses.
Wall, J.R.
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Golgi enzymes are retrieved from the plasma membrane to the trans‐Golgi network
FEBS Letters, EarlyView.Golgi enzymes are traditionally considered resident proteins retained within the Golgi apparatus. Here, we demonstrate that a subset transiently reaches the cell surface and is subsequently retrieved to the trans‐Golgi network via retrograde transport. Using a nanobody‐based toolkit, we uncover a dynamic trafficking cycle of several Golgi enzymes.
Dominik P. Buser, Tina Junne
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Stochastic eigenvectors for qualitative stochastic matrices
Discrete Mathematics, 1983 AbstractLet P be an n × n (0,1)-matrix with at least one 1 in each row. Let S(P) be the set of all stochastic eigenvectors belonging to n × n stochastic matrices A so that A ⩽ P. It is shown that S(P) is a convex polytope. Further, some work on computing this polytope is given.
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