Simplex Time Recorder work order

A work order from Simplex Time Recorder Company of Wichita, Kansas regarding repair of a wall clock at Forsyth Library.https://scholars.fhsu.edu/library_bldg/1041/thumbnail.jp

Building Efficient and Compact Data Structures for Simplicial Complexes

The Simplex Tree (ST) is a recently introduced data structure that can represent abstract simplicial complexes of any dimension and allows efficient implementation of a large range of basic operations on simplicial complexes. In this paper, we show how to optimally compress the Simplex Tree while retaining its functionalities. In addition, we propose two new data structures called the Maximal Simplex Tree (MxST) and the Simplex Array List (SAL). We analyze the compressed Simplex Tree, the Maximal Simplex Tree, and the Simplex Array List under various settings.Comment: An extended abstract appeared in the proceedings of SoCG 201

Interrupting the Response of \u3ci\u3eDendroctonus Simplex\u3c/i\u3e Leconte (Coleoptera: Curculionidae: Scolytinae) to Compounds That Elicit Aggregation of Adults

The eastern larch beetle, Dendroctonus simplex LeConte (Coleoptera: Curculionidae: Scolytinae), is a native bark beetle that has caused significant mortality to tamarack, Larix laricinia, in the Upper Peninsula of Michigan. The effectiveness of potentially attractive chemicals for D. simplex was tested and the most attractive compound, seudenol, was used in subsequent studies to test interruptants against D. simplex. Verbenone, methylcyclohexenone (MCH), and 4-allylanisole were tested as potential interruptants in combination with seudenol. Catches of D. simplex in traps baited with seudenol and MCH were not significantly different from catches in unbaited control traps, indicating successful interruption of the response to seudenol by MCH. Verbenone released at commercially available doses significantly increased catches of D. simplex in traps baited with seudenol, however it did not catch significantly more D. simplex than the unbaited control traps when released alone. Traps baited with 4-allylanisole did not significantly reduce the number of D. simplex captured compared to traps baited solely with seudenol. The potential for MCH to be used to protect individual trees and in stand level management of D. simplex is discussed

Meunier Conjecture

Fr\'ed\'eric Meunier's question about a multicolored Sperner lemma is addressed, leaving the question of connectivity for the color hypergraphs of such a multicolored simplex. Sperner's lemma asserts the existence of a simplex using all the colors for any vertex coloring of a subdivision of a large simplex with appropriate boundary conditions. Meunier's questions generalizes this to the situation of having several such colorings and asserts the existence of a simplex using enough different colors from each coloring

On discrete simplex splines and subdivision

Discrete analogoues of multivariate simplex splines are introduced. Their study yields a subdivision scheme for simplex splines