Split cuts are among the most important and well-understood cuts for general mixed-integer programs. In this paper we consider some recent generalizations of split cuts and compare their relative strength. More precisely, we compare the elementary closures of split, cross, crooked cross and general multi-branch split cuts as well as cuts obtained from multi-row and basic relaxations. We present...

A characterization of the split property for an inclusion N ⊂ M of W ∗-factors with separable predual is established in terms of the canonical non-commutative L embedding considered in [4, 5] Φ2 : a ∈ N → ∆ M,ΩaΩ ∈ L(M,Ω) associated with an arbitrary fixed standard vector Ω for M . This characterization follows an analogous characterization related to the canonical non-commutative L embedding Φ...

Previous accounts of the distribution of classifiers (C) and measure words (M) in Chinese [Num C/M N] include a uniform left-branching, right-branching, or split structure. This paper demonstrates that the left-branching structure best captures C/M’s common properties─among others, they are unified mathematically as the multiplicand (1 and ¬1 respectively) ─ and also offers the simplest account...

OBJECTIVE Conventional, separate mediastinal and pleural tubes are often inefficient at draining thoracic effusions. DESCRIPTION We developed a Y-shaped chest tube with split ends that divide within the thoracic cavity, permitting separate intrathoracic placement and requiring a single exit port. In this study, thoracic drainage by the split drain vs. that of separate drains was tested. MET...

An EDF-based task-splitting scheme for scheduling multiprocessor systems is introduced in this paper. For m processors at most m− 1 tasks are split. The first part of a split task is constrained to have a deadline equal to its computation time. The second part of the task then has the maximum time available to complete its execution on a different processor. The advantage of this scheme is that...

We continue the study of equivalent boundary conditions in ferromagnetic domains crossed by a thin split. In this second part, we add nonhomogenous boundary conditions arising from interactions such as surface anisotropy and superexchange. We expand the problem up to the first order and establish equivalent boundary conditions in presence of surface anisotropy and super-exchange. In particular,...

The electronic structure of Bi(001) ultrathin films (thickness > or =7 bilayers) on Si(111)-7x7 was studied by angle-resolved photoemission spectroscopy and first-principles calculations. In contrast with the semimetallic nature of bulk Bi, both the experiment and theory demonstrate the metallic character of the films with the Fermi surface formed by spin-orbit-split surface states (SSs) showin...

Article history: Received 8 July 2015 Received in revised form 22 February 2016 Available online 4 August 2016 Communicated by S. Koenig We investigate how the higher almost split sequences over a tensor product of algebras are related to those over each factor. Herschend and Iyama give in [6] a criterion for when the tensor product of an n-representation finite algebra and an m-representation ...