Results 41 to 50 of about 422,657 (323)

Localized intersection of currents and the Lefschetz coincidence point theorem

, 2015
We introduce the notion of a Thom class of a current and define the localized intersection of currents. In particular we consider the situation where we have a smooth map of manifolds and study localized intersections of the source manifold and currents ...
Bisi, Cinzia, Bracci, Filippo, Izawa, Takeshi, Suwa, Tatsuo   +3 more
core   +1 more source

Solutions to the cosmological constant problems [PDF]

, 2001
We critically review several recent approaches to solving the two cosmological constant problems. The "old" problem is the discrepancy between the observed value of $\Lambda$ and the large values suggested by particle physics models.
A. J. Riess, A. Linde, A. Vilenkin, A. Vilenkin, A. Vilenkin, A. Vilenkin, B. Schmidt, C. Armendáriz-Picon, C. Armendáriz-Picon, E. Guendelman, G. Dvali, G. Efstathiou, G. W. Gibbons, H. Martel, J. D. Barrow, J. D. Brown, J. Donoghue, J. Garriga, J. Garriga, J. Garriga, J. Garriga, J. Garriga, J. Garriga, J. Garriga, J. Garriga, J. Garriga, J. L. Feng, K. Lee, K. Lee, L. Abbot, L. F. Abbot, M. Tegmark, N. Arkani-Hamed, N. Deruelle, P. C. W. Davies, P. G. O. Freund, P. G. O. Freund, R. Basu, R. Bousso, R. Kallosh, S. Bludman, S. Coleman, S. Coleman, S. Giddings, S. Perlmutter, S. Perlmutter, S. Weinberg, S. Weinberg, S. Weinberg, S. Weinberg, T. Banks, T. Banks, V. Vanchurin, W. H. Press   +53 more
core   +3 more sources

Coincidence points of principal bundles

Topology and its Applications, 1992
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +2 more sources

Coincidence charged-current neutrino-induced deuteron disintegration [PDF]

, 2015
Deuteron disintegration by charged-current neutrino (CC$\nu$) scattering offers the possibility to determine the energy of the incident neutrino by measuring in coincidence two of the three resulting particles: a charged lepton (usually a muon) and two ...
Donnelly, T. W., Ford, W. P., Moreno, O., Van Orden, J. W.   +3 more
core   +2 more sources

On almost coincidence points in generalized convex spaces

Fixed Point Theory and Applications, 2006
We prove an almost coincidence point theorem in generalized convex spaces. As an application, we derive a result on the existence of a maximal element and an almost coincidence point theorem in hyperconvex spaces.
Zoran D. Mitrović
doaj   +2 more sources

The epithelial barrier theory proposes a comprehensive explanation for the origins of allergic and other chronic noncommunicable diseases

FEBS Letters, EarlyView.
Exposure to common noxious agents (1), including allergens, pollutants, and micro‐nanoplastics, can cause epithelial barrier damage (2) in our body's protective linings. This may trigger an immune response to our microbiome (3). The epithelial barrier theory explains how this process can lead to chronic noncommunicable diseases (4) affecting organs ...
Can Zeyneloglu, Huseyn Babayev, Ismail Ogulur, Sena Ardicli, Yagiz Pat, Duygu Yazici, Bingjie Zhao, Lihong Chang, Xiaoqing Liu, Paolo D'Avino, Manru Li, Ceren Biçer, Fatma Hacer Kurtoğlu Babayev, Raja Dhir, Kari C. Nadeau, Marie‐Charlotte Brüggen, Mubeccel Akdis, Cezmi A. Akdis   +17 more
wiley   +1 more source

Geometric and homotopy theoretic methods in Nielsen coincidence theory

, 2006
In classical fixed point and coincidence theory the notion of Nielsen numbers has proved to be extremely fruitful. Here we extend it to pairs (f_1, f_2) of maps between manifolds of arbitrary dimensions. This leads to estimates of the minimum numbers MCC(
Koschorke, Ulrich
core   +4 more sources

Consequences of Pure Point Diffraction Spectra for Multiset Substitution Systems [PDF]

, 2009
There is a growing body of results in the theory of discrete point sets and tiling systems giving conditions under which such systems are pure point diffractive.
Lee, Jeong-Yup, Moody, Robert V., Solomyak, Boris   +2 more
core   +1 more source

Coincidence Points of Weaker Contractions in Partially Ordered Metric Spaces

Journal of Applied Mathematics, 2013
We prove new coincidence point theorems for the -contractions and generalized Meir-Keeler-type --contractions in partially ordered metric spaces. Our results generalize many recent coincidence point theorems in the literature.
Kuo-Ching Jen, Ing-Jer Lin, Chi-Ming Chen   +2 more
doaj   +1 more source

Aβ42 promotes the aggregation of α‐synuclein splice isoforms via heterogeneous nucleation

FEBS Letters, EarlyView.
The aggregation of amyloid‐β (Aβ) and α‐synuclein (αSyn) is associated with Alzheimer's and Parkinson's diseases. This study reveals that Aβ aggregates serve as potent nucleation sites for the aggregation of αSyn and its splice isoforms, shedding light on the intricate interplay between these two pathogenic proteins.
Alexander Röntgen, Zenon Toprakcioglu, Michele Vendruscolo   +2 more
wiley   +1 more source