Results 151 to 160 of about 34,901 (303)

Classifying Higher Rank Toeplitz Operators. [PDF]

, 2007
To a higher rank directed graph (Λ, d), in the sense of Kumjian and Pask, 2000, one can associate natural noncommutative analytic Toeplitz algebras, both weakly closed and norm closed.
Power, S.C.
core  

FORCING VERTEX TRIANGLE FREE DETOUR NUMBER OF A GRAPH

, 2017
<p>For any vertex  in a connected graph  of order  a set   is called a -<em>triangle free detour set</em> of  if every vertex  of  lies on a  triangle free detour for some vertex  in ...
S. Sethu Ramalingam *1, I. Keerthi Asir2 and S. Athisayanathan 3
core   +1 more source

Machine Learning‐Driven Prediction of Microplastic Aging Processes and Environmental Risk Assessment Across Multi‐Media Systems

Advanced Science, EarlyView.
This perspective proposes a cohesive machine learning strategy to decode microplastic aging. It advocates for Federated Learning to dismantle global data silos and introduces the TRACE framework (TRansport, Aging, Corona, Ecotoxicity). By integrating physics‐informed modeling with causal discovery, this approach bridges the laboratory‐field gap to ...
Yaping Lyu, Xinran Qiu, Xing Li, Tianhuan Yang, Xuetao Guo, Hao Qiu, Peng Zhang   +6 more
wiley   +1 more source

Directed triangles in directed graphs

Discrete Mathematics, 2004
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +2 more sources

A Conserved DT2‐bZIP66‐NF‐YC4 Regulatory Module Confers Drought Tolerance in Rice and Arabidopsis

Advanced Science, EarlyView.
This study identifies a conserved tripartiteDT2–bZIP66–NF‐YC4 transcriptional module that enhances rice drought tolerance by activating stress‐responsive genes. This regulatory complex is functionally conserved across cereals and Arabidopsis, providing promising targets for engineering drought‐resilient crops. ABSTRACT Drought stress severely restricts
Jun Shen, Yuchen Li, Liang Zhang, Xiaosong Ma, Chenyin Peng, Chunting Yuan, Yu Wu, Kaiyu Zhao, Sheng Zhao, Jiazhuo Guo, Run Li, Ziqian Yan, Shule Ren, Yige Han, Xin Lin, Xinyue Li, Ming Li, Pingfang Yang, Shiyong Song   +18 more
wiley   +1 more source

Coloring triangle-free rectangular frame intersection graphs with O(log log n) colors

, 2013
Recently, Pawlik et al. have shown that triangle-free intersection graphs of line segments in the plane can have arbitrarily large chromatic number. Specifically, they construct triangle-free segment intersection graphs with chromatic number Θ(log log n).
Krawczyk, Tomasz, Walczak, Bartosz, Arkadiusz Pawlik, Bartosz Walczak, Pawlik, Arkadiusz, Tomasz Krawczyk   +5 more
core   +1 more source

A Phase‐Resolved Geometric Deep Learning Framework Maps Structural Determinants of Disease‐Associated Protein Aggregation and Guides Suppressor Design

Advanced Science, EarlyView.
SKALE 2.0 maps disease‐associated protein aggregation as a phase‐resolved structural process, linking mutation‐induced geometric perturbations to nucleation, elongation, and suppressor design. Across neurodegenerative proteins, the framework reveals cryptic aggregation vulnerabilities, separates phase‐concordant and phase‐switching mutations, and ...
Jia Shen Sio, Wei Xuan Wilson Loo, Yan Shan Loo, Wen Xin Tan, Hui Xuan Lim, Huitao Liu, Chen Seng Ng   +6 more
wiley   +1 more source

Exploiting structure to cope with NP-hard graph problems: Polynomial and exponential time exact algorithms [PDF]

, 2010
An ideal algorithm for solving a particular problem always finds an optimal solution, finds such a solution for every possible instance, and finds it in polynomial time.
VAN-'T-HOF, PIM
core  

Factoring the cartesian product of a cubic graph and a triangle

, 2002
Kotzig asked: does the cartesian product of a bridgeless cubic graph with a triangle always have a one-factorization? We answer this in the affirmative.
Wallis, W.D., Horton, J.D.
core   +1 more source

HLA‐DR+ Schwann Cells Generate the Protumor Cancer‐Neuron‐Immune Niche in Head and Neck Squamous Cell Carcinoma

Advanced Science, EarlyView.
Hijacked and educated by HNSCC cells, HLA‐DR+ Schwann cells lost their normal neural‐related functions but acquired immunoregulatory phenotypes to promote CD4+ T cells transform into Tregs. HLA‐DR+ Schwann cells induced a macrophage subpopulation, Il1β.
Xiaoyan Meng, Zhonglong Liu, Shijian Zhang, Luoman Gan, Liren Cao, Jingjing Sun, Lingfang Zhang, Yue He   +7 more
wiley   +1 more source