Results 71 to 80 of about 3,309,531 (289)

Global search algorithm for optimal control [PDF]

, 1970
Random-search algorithm employs local and global properties to solve two-point boundary value problem in Pontryagin maximum principle for either fixed or variable end-time problems. Mixed boundary value problem is transformed to an initial value problem.
Brocker, D. H., Kavanaugh, W. P., Stewart, E. C.   +2 more
core   +1 more source

Intermediate fixed point in a Luttinger liquid with elastic and dissipative backscattering

, 2015
In a recent work [Phys. Rev. Lett. {\bf 108}, 136401 (2012)] we have addressed the problem of a Luttinger liquid with a scatterer that allows for both coherent and incoherent scattering channels.
Altland, Alexander, Gefen, Yuval, Rosenow, Bernd   +2 more
core   +1 more source

Fixed point theory and nonlinear problems [PDF]

Bulletin of the American Mathematical Society, 1983
This survey paper by a person who helped to shape the field described in the title begins with historical remarks about the evolvement of (analytic) degree theory and its importance to nonlinear problems. Then the author outlines the degree theory for continuous maps in \({\mathbb{R}}^ n\).
openaire   +2 more sources

Applicability of mitotic figure counting by deep learning: a development and pan‐cancer validation study

FEBS Open Bio, EarlyView.
In this study, we developed a deep learning method for mitotic figure counting in H&E‐stained whole‐slide images and evaluated its prognostic impact in 13 external validation cohorts from seven different cancer types. Patients with more mitotic figures per mm2 had significantly worse patient outcome in all the studied cancer types except colorectal ...
Joakim Kalsnes, Maria X. Isaksen, Frida Julbø, Manohar Pradhan, Andreas Kleppe, Sepp De Raedt, Ole‐Johan Skrede, Turid Torheim, John Arne Nesheim, Hans Martin Mohn, Hanne A. Askautrud, Karolina Cyll, Wanja Kildal, Emma Rewcastle, Melinda Lillesand, Vebjørn Kvikstad, Emiel Janssen, Robert Jones, Odd Terje Brustugun, Bjørn Brennhovd, Erik Skaaheim Haug, Lill‐Tove Rasmussen Busund, Elin Richardsen, Sigve Andersen, Tom Dønnem, Kristina Lindemann, Gunnar Kristensen, Neil A. Shepherd, Marco Novelli, Knut Liestøl, David Kerr, Håvard E. Danielsen, Tarjei S. Hveem   +32 more
wiley   +1 more source

Third Order Renormalization Group applied to the attractive one-dimensional Fermi Gas

, 2000
We consider a Callan-Symanzik and a Wilson Renormalization Group approach to the infrared problem for interacting fermions in one dimension with backscattering.
A. I. Larkin, A. Luther, A. Luther, A. Theumann, C. S. Ting, C. S. Ting, D. C. Mattis, D. C. Mattis, D. C. Mattis, D. C. Mattis, E. H. Rezayi, F. Bonetto, F. Bonetto, F. Bonetto, F. Bonetto, F. D. M. Haldane, F. D. M. Haldane, G. Benfatto, G. Benfatto, G. Benfatto, G. Benfatto, G. Gallavotti, G. Gentile, I. Affleck, I. E. Dyaloshinskiĭ, J. M. Luttinger, J. Sòlyom, J. Sòlyom, K. D. Schotte, K. Wilson, N. Menyárd, N. Menyárd, Paolo Carta, R. Heidenreich, S. T. Chui, T. Bell   +35 more
core   +1 more source

Single‐molecule DNA flow‐stretch assays for high‐throughput DNA–protein interaction studies

FEBS Open Bio, EarlyView.
We describe an optimised single‐molecule DNA flow‐stretch assay that visualises DNA–protein interactions in real time. Linear DNA fragments are tethered to a surface and stretched by buffer flow for fluorescence imaging. Using λ and φX174 DNA, this protocol enhances reproducibility and accessibility, providing a versatile approach for studying diverse ...
Ayush Kumar Ganguli, Mohammad Nour Alsamsam, Ugnė Bagdonaitė, Van Truc Vu, Chun‐Jen Huang, Polina Kuzhir, Mindaugas Zaremba, Aurimas Kopūstas, Marijonas Tutkus   +8 more
wiley   +1 more source

Breakdown of Conformal Invariance at Strongly Random Critical Points

, 2000
We consider the breakdown of conformal and scale invariance in random systems with strongly random critical points. Extending previous results on one-dimensional systems, we provide an example of a three-dimensional system which has a strongly random ...
A. M. Polyakov, B. L. Altshuler, B. L. Altshuler, B. Shapiro, C. Dasgupta, C. Mudry, D. G. Shelton, D. S. Fisher, D. Slepian, F. J. Dyson, I. I. Kogan, J. Polchinski, K. Efetov, L. Balents, M. B. Hastings, M. C. Wang, M. Janssen, O. Motrunich, P. W. Brouwer, S. L. Sondhi, S. N. Majumdar, T. D. Lee, T. W. Burkhardt, V. Gurarie, Y. G. Sinai   +24 more
core   +1 more source

Viscosity Approximation Methods for Fixed-Points Problems

Journal of Mathematical Analysis and Applications, 2000
The aim of this work is to propose viscosity approximation methods which amounts to selecting a particular fixed-point of a given nonexpansive self-mapping.
openaire   +1 more source

Analysing the significance of small conformational changes and low occupancy states in serial crystallographic data

FEBS Open Bio, EarlyView.
This protocol paper outlines methods to establish the success of a time‐resolved serial crystallographic experiment, by means of statistical analysis of timepoint data in reciprocal space and models in real space. We show how to amplify the signal from excited states to visualise structural changes in successful experiments.
Jake Hill, Yelyzaveta Pulnova, Elke De Zitter, Helen M. Ginn, Briony A. Yorke   +4 more
wiley   +1 more source

Double solutions of three-point boundary-value problems for second-order differential equations

Electronic Journal of Differential Equations, 2004
A double fixed point theorem is applied to yield the existence of at least two nonnegative solutions for the three-point boundary-value problem for a second-order differential equation, $$displaylines{ y'' + f(y)=0,quad 0 leq t leq 1,cr y(0) =0,quad y(p)
Johnny Henderson
doaj