Results 21 to 30 of about 43,687 (165)
The H-force sets of the graphs satisfying the condition of Ore’s theorem [PDF]
Open Mathematics, 2020 Abstract Let G be a Hamiltonian graph. A nonempty vertex set X ⊆ V ( G )
Zhang Xinhong, Li Ruijuan
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SIMULATION OF LEACHING PROCESSES OF POLYMETALLIC ORES USING THE SIMILARITY THEOREM
Rudarsko-geološko-naftni zbornik, 2022 The use of similarity theorems for simulation of the technological process of mineral extraction is considered. The list of parameters that significantly influence the process of underground leaching of minerals is defined. Using these parameters and fundamental laws of physics and chemistry, mathematical functions are determined to describe the ...
Oleksandr Vladyko +5 more
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On Generalization of Modular Lattices
Bulletin of the Section of LogicWe introduce the concepts of dually balanced lattices and \(M\)-lattices and provide some basic properties of these classes of lattices. Both classes can be viewed as generalizations of the well-known class of modular lattices.
Agnieszka Stocka
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A Dirac type result on Hamilton cycles in oriented graphs
, 2008 We show that for each \alpha>0 every sufficiently large oriented graph G with \delta^+(G),\delta^-(G)\ge 3|G|/8+ \alpha |G| contains a Hamilton cycle. This gives an approximate solution to a problem of Thomassen.
Kelly, Luke +2 more
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On the Monogenity of Quartic Number Fields Defined by x4 + ax2 + b
MathematicsFor any quartic number field K generated by a root α of an irreducible trinomial of type x4+ax2+b∈Z[x], we characterize when Z[α] is integrally closed. Also for p=2, 3, we explicitly give the highest power of p dividing i(K), the common index divisor of ...
Lhoussain El Fadil, István Gaál
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An Ore-type theorem for perfect packings in graphs
, 2009 We say that a graph G has a perfect H-packing (also called an H-factor) if there exists a set of disjoint copies of H in G which together cover all the vertices of G.
Kühn, Daniela +2 more
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Surface Plasmon Enhanced Photoluminescence of Carbon Dots Formed In Situ on Silver Gratings
Advanced Science, EarlyView.Carbon emitters formed in situ on a silver grating via plasmonic catalysis yield enhanced spontaneous emission by preferential radiative decay into surface plasmons. Enhancement manifests as emission exhibiting characteristics of coherence (polarization, directionality), and accelerated lifetimes of ∼30 ps, yielding Purcell factors of ∼70.
Maryam Sadat Amiri Naeini +5 more
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Bisymmetric functionals revisited or a converse of the Fubini theorem [PDF]
Aequationes mathematicae, 2020 AbstractWe observe that bisymmetry is in fact the assertion of the Fubini theorem and we describe the form of general bisymmetric operations on some function spaces.
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Asia-Pacific Journal of Chemical Engineering, EarlyView.ABSTRACT This study investigates the rheological behavior of industrial phosphoric acids (H3PO4) produced at the JORF–LASFAR phosphoric plant in Morocco, with P2O5 concentrations of 18%, 29%, 42%, and 54%. Rheological measurements were performed using a rotary cylinder rheometer over a shear rate range of 1–1000 s−1.
Hamza Belbsir +6 more
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The Hidden Algorithm of Ore's Theorem on Hamiltonian Cycles
Computers & Mathematics with Applications, 1997 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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