Results 71 to 80 of about 55,229 (315)
The forcing convexity number of a graph [PDF]
, 1981 summary:For two vertices $u$ and $v$ of a connected graph $G$, the set $I(u, v)$ consists of all those vertices lying on a $u$–$v$ geodesic in $G$. For a set $S$ of vertices of $G$, the union of all sets $I(u,v)$ for $u, v \in S$ is denoted by $I(S)$.
Frank Harary +3 more
core +1 more source
Mathematics, 2018 In this paper, we introduce the notion of g-convex weight sequence (gcws) for connected graphs based on the concept of g-convexity and g-weight. g-weight is a natural generalization of the notion of branch weight for trees.
Prakash Veeraraghavan
doaj +1 more source
Strict 2-Convexity And Strict Convexity
Demonstratio Mathematica, 1998 The authors first characterize strict convexity of linear 2-normed spaces and then provide necessary and sufficient conditions for a linear 2-normed space to be strictly 2-convex.
White, A., Cho, Y. J., Kim, S. S.
openaire +2 more sources
Typical Convex Sets of Convex Sets [PDF]
Journal of the Australian Mathematical Society. Series A. Pure Mathematics and Statistics, 1987 There exists a natural notion of convexity in the space of all compact convex sets in D. Thus, we may consider the space of all bounded closed convex families of compact convex sets. We present here a strange generic extremal behaviour of the elements of this space.
Schwarz, T., Zamfirescu, T.
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Advanced Materials, EarlyView.Uniform monolayer Cr2Ge2Te6 films are achieved on Si substrates by molecular beam epitaxy. Intrinsic ferromagnetism with perpendicular magnetic anisotropy is established in the films by anomalous Hall effect and superconducting quantum interference device measurements, albeit with strong magnetic fluctuations characteristic of its 2D nature.
Pengfei Ji +15 more
wiley +1 more source
Duality for nonsmooth mathematical programming problems with equilibrium constraints
Journal of Inequalities and Applications, 2016 In this paper, we consider the mathematical programs with equilibrium constraints (MPECs) in Banach space. The objective function and functions in the constraint part are assumed to be lower semicontinuous.
Sy-Ming Guu +2 more
doaj +1 more source
Space‐Time Coding Conformal Metasurfaces for Multifrequency Beam Steering and Shaping
Advanced Materials, EarlyView.Space‐time coding conformal metasurfaces enable dynamic wave control on curved surfaces by combining programmable spatial patterns with temporal modulation. This study shows that a single conformal aperture can independently manipulate multiple frequency components, achieving multifunctional beam shaping and steering, with implications for ...
Filippo Pepe +8 more
wiley +1 more source
Robust controlled vector variational inequalities for multi-dimensional fractional control optimization problems [PDF]
Archives of Control SciencesThis paper is devoted to study robust efficiency in terms of variational inequality for a class of multi-dimensional multi-objective first-order PDE-constrained fractional control optimization problems with data uncertainty (MMFP).
Anurag Jayswal +2 more
doaj +1 more source
Convex characterization of linearly convex domains
MATHEMATICA SCANDINAVICA, 2012 We prove that a $C^{1,1}$-smooth bounded domain $D$ in $\mathbf{C}^n$ is linearly convex if and only if the convex hull of any two discs in $D$ with common center lies in $D$.
Nikolov, Nikolai, Thomas, Pascal J.
openaire +4 more sources
Advanced Materials, EarlyView.Field‐programmed anisotropy imparts material‐level intelligence to soft composites. Magnetic torque dynamics drive magneto‐piezoelectric nanowires from random dispersion into deterministic axial alignment. The resulting hierarchical percolation networks confine electromechanical coupling to specific axes and intrinsically decouple superposed force ...
Yubin Kim +9 more
wiley +1 more source