Results 41 to 50 of about 985,761 (294)

Existence of positive solutions for multi-point resonance systems of differential equations with boundary value conditions

Journal of Hebei University of Science and Technology, 2016
It is difficult to study the existence of solutions for boundary value problems of differential equations at resonance, moreover, to get positive solutions of boundary value problems for differential equations at resonance is more difficult.
Weihua JIANG, Caixia YANG
doaj   +1 more source

A numerical study of the F-model with domain-wall boundaries [PDF]

, 2017
We perform a numerical study of the F-model with domain-wall boundary conditions. Various exact results are known for this particular case of the six-vertex model, including closed expressions for the partition function for any system size as well as its
Keesman, Rick, Lamers, Jules
core   +5 more sources

Interplay between circadian and other transcription factors—Implications for cycling transcriptome reprogramming

FEBS Letters, EarlyView.
This perspective highlights emerging insights into how the circadian transcription factor CLOCK:BMAL1 regulates chromatin architecture, cooperates with other transcription factors, and coordinates enhancer dynamics. We propose an updated framework for how circadian transcription factors operate within dynamic and multifactorial chromatin landscapes ...
Xinyu Y. Nie, Jerome S. Menet
wiley   +1 more source

Inequalities of Green’s functions and positive solutions to nonlocal boundary value problems

Journal of Inequalities and Applications, 2020
In this paper, we discuss the positive solutions of beam equations with the nonlinearities including the slope and bending moment under nonlocal boundary conditions involving Stieltjes integrals.
Shijie Fan, Pengxu Wen, Guowei Zhang
doaj   +1 more source

Time after time – circadian clocks through the lens of oscillator theory

FEBS Letters, EarlyView.
Oscillator theory bridges physics and circadian biology. Damped oscillators require external drivers, while limit cycles emerge from delayed feedback and nonlinearities. Coupling enables tissue‐level coherence, and entrainment aligns internal clocks with environmental cues.
Marta del Olmo, Carolin Ector, Hanspeter Herzel   +2 more
wiley   +1 more source

Differential equations for multi-loop integrals and two-dimensional kinematics

, 2012
In this paper we consider multi-loop integrals appearing in MHV scattering amplitudes of planar N=4 SYM. Through particular differential operators which reduce the loop order by one, we present explicit equations for the two-loop eight-point finite ...
A Brandhuber, A Brandhuber, A Sever, AB Goncharov, C Duhr, D Gaiotto, D Gaiotto, E Remiddi, G Korchemsky, G Korchemsky, J Drummond, J Drummond, J Drummond, J Drummond, J Drummond, J Drummond, J Drummond, J Drummond, JM Drummond, JM Drummond, JM Drummond, L Mason, L. Ferro, LF Alday, LF Alday, LF Alday, LF Alday, LF Alday, LF Alday, LJ Dixon, LJ Dixon, LJ Dixon, MF Paulos, N Arkani-Hamed, N Arkani-Hamed, N Arkani-Hamed, P Heslop, P Heslop, S Caron-Huot, S Caron-Huot, T Gehrmann, V Duca Del, V Duca Del, V Duca Del, V Duca Del, Z Bern   +45 more
core   +1 more source

Investigating the cell of origin and novel molecular targets in Merkel cell carcinoma: a historic misnomer

Molecular Oncology, EarlyView.
This study indicates that Merkel cell carcinoma (MCC) does not originate from Merkel cells, and identifies gene, protein & cellular expression of immune‐linked and neuroendocrine markers in primary and metastatic Merkel cell carcinoma (MCC) tumor samples, linked to Merkel cell polyomavirus (MCPyV) status, with enrichment of B‐cell and other immune cell
Richie Jeremian, Sriraam Sivachandran, Melissa Galati, Brandon Ramchatesingh, Hibo Rijal, Johnny Hanna, Elena Netchiporouk, May Chergui, Margaret Redpath, Samy Abou Setah, Ivan V. Litvinov   +10 more
wiley   +1 more source

Existence results for fractional order boundary value problem with nonlocal non-separated type multi-point integral boundary conditions

AIMS Mathematics, 2020
In this article, we discuss the existence of solutions of a fractional boundary value problem of order m ∈ (1, 2], with nonlocal non-separated type integral multipoint boundary conditions. Shaefer type and Krasnoselskii’s fixed point theorems are used to
Nayyar Mehmood, Niaz Ahmad
doaj   +1 more source

Existence results for Riemann-Liouville fractional integro-differential inclusions with fractional nonlocal integral boundary conditions

AIMS Mathematics, 2021
We introduce a new class of problems consisting of Riemann-Liouville fractional integro-differential inclusions supplemented with fractional nonlocal multi-point boundary conditions. The existence results for the given problem are derived in the weighted
Bashir Ahmad, Badrah Alghamdi , Ahmed Alsaedi , Sotiris K. Ntouyas   +3 more
doaj   +1 more source

Linear, second-order problems with Sturm-Liouville-type multi-point boundary conditions

Electronic Journal of Differential Equations, 2011
We consider the linear eigenvalue problem \tag{1} -u" = u, \quad \text{on $(-1,1)$}, where $ \in \mathbb{R}$, together with the general multi-point boundary conditions \tag{2} _0^\pm u(\pm 1) + _0^\pm u'(\pm 1) = \sum^{m^\pm}_{i=1} ^\pm_i u( ^\pm_i) + \sum_{i=1}^{m^\pm} ^\pm_i u'( ^\pm_i).
openaire   +4 more sources