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2.088  Articles
1 of 210 pages  |  10  records  |  more records»
In this paper, we study the relationship among left peaks, interior peaks and up-down runs of simsun permutations. Properties of the generating polynomials, including the recurrence relation, generating function and real-rootedness are studied. Moreover, ... see more

In this paper, we present grammatical descriptions of several polynomials associated with Eulerian polynomials, including q-Eulerian polynomials, alternating run polynomials and derangement polynomials. As applications, we get several convolution formulas... see more

In this paper, we study the relationship among left peaks, interior peaks and up-down runs of simsun permutations. Properties of the generating polynomials, including the recurrence relation, generating function and real-rootedness are studied. Moreover, ... see more

En este estudio se realizó el análisis de los parámetros que afectan el proceso WAG como el Volumen Poroso total de gas inyectado, relación agua / gas, y la tasa de inyección de gas, realizando corridas de simulación que permitieron evaluar el efecto sobr... see more

An urban rainfall-runoff water quality model was developed to simulate total suspend solids (TSS) using the stormwater management model (SWMM) for a 3.8 ha university campus in Beijing (approximately 76.5% impervious), and calibrated and validated against... see more

The flow of water beneath the earth's surface flows through the pores like rocks and other porous media that can be flooded by water. In the soil, water flows due to the difference in hydraulic height that is the difference from ground water level. Ground... see more

The synthesis of speed-optimal control for object with alternating-sign characteristic – excavation site of coal mines – was considered. The task comes to establishment of the desired mode of object operation with minimal time due to significant inertia p... see more

The electrochemical behavior of Constantine electrode in hydrochloric acid solution by polarization of an alternating current by frequency of 50 Hz was studied. It was considered the influence of main electrochemical parameters (density of current on tita... see more

In 2007, the first author gave an alternative proof of the refined alternating sign matrix theorem by introducing a linear equation system that determines the refined ASM numbers uniquely. Computer experiments suggest that the numbers appearing in a conje... see more

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