Results 111 to 120 of about 901,024 (319)
Continuous colourings of closed graphs
Topology and its Applications, 1993 The main theorem of the paper says that whenever \(f\) is a fixed-point-free continuous map of a 0-dimensional \(\sigma\)-compact Hausdorff space into itself, then there exist disjoint clopen subsets \(U_0\), \(U_1\), \(U_2\) of \(X\) such that \(U_0 \cup U_1 \cup U_2 = X\) and \(f(U_i) \cap U_i = \emptyset\) for every \(i < 3\).
Krawczyk, Adam, Steprāns, J.
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A Workflow to Accelerate Microstructure‐Sensitive Fatigue Life Predictions
Advanced Engineering Materials, EarlyView.This study introduces a workflow to accelerate predictions of microstructure‐sensitive fatigue life. Results from frameworks with varying levels of simplification are benchmarked against published reference results. The analysis reveals a trade‐off between accuracy and model complexity, offering researchers a practical guide for selecting the optimal ...
Luca Loiodice +2 more
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Canonical colourings in random graphs [PDF]
, 2023 Nina Kamčev, Mathias Schacht
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Extremal Restraints for Graph Colourings
, 2015 7 pages, 1 ...
Brown, Jason I., Erey, Aysel, Li, Jian
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Advanced Functional Materials, EarlyView.PBTTT‐OR‐R, a C14‐alkoxy/alkyl‐PBTTT polymer derivative, is of substantial interest for optoelectronics due to its specific fullerene intercalation behavior and enhanced charge‐transfer absorption. Comparing this polymer with (S) and without (O) homocoupling defects reveals that PBTTT‐OR‐R(O) forms stable co‐crystals with PC61BM, while PBTTT‐OR‐R(S ...
Zhen Liu +14 more
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Advanced Functional Materials, EarlyView.This study presents novel anti‐counterfeiting tags with multilevel security features that utilize additional disguise features. They combine luminescent nanosized Ln‐MOFs with conductive polymers to multifunctional mixed‐matrix membranes and powder composites. The materials exhibit visible/NIR emission and matrix‐based conductivity even as black bodies.
Moritz Maxeiner +9 more
wiley +1 more source
Graph Homomorphism Reconfiguration and Frozen $H$-Colourings [PDF]
, 2017 Richard C. Brewster +4 more
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Advanced Functional Materials, EarlyView.HKUST‐1/TiO2 composite materials show a very high photocatalytic hydrogen evolution rate which increases as a function of the irradiation time until reaching a plateau and even surpasses the performance of the 1%Pt/TiO2 material after three photocatalytic cycles.
Alisha Khan +9 more
wiley +1 more source
List-edge-colouring planar graphs with precoloured edges [PDF]
, 2017 Joshua Harrelson +2 more
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Colouring of COVID-19 Affected Region Based on Fuzzy Directed Graphs [PDF]
, 2021 Rupkumar Mahapatra +6 more
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