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BINOMIAL SUMS INVOLVING CATALAN NUMBERS

期刊: ROCKY MOUNTAIN JOURNAL OF MATHEMATICS, 2021; 51 (4)

Recently, various interesting binomial sums involving Catalan numbers have been derived and computed. Inspired from them, several binomial sums involv......

GLOBAL LARGE SOLUTION FOR THE TROPICAL CLIMATE MODEL WITH DIFFUSION

期刊: ROCKY MOUNTAIN JOURNAL OF MATHEMATICS, 2021; 51 (4)

We study the d-dimensional (d = 2, 3) tropical climate model with only the dissipation of the first baroclinic model of the velocity -eta Delta nu. By......

FIRST INTEGRALS AND SOLUTIONS FOR A CLASS OF THIRD-ORDER NONLINEAR AUTONOMOUS DIFFERENTIAL EQUATIONS

期刊: ROCKY MOUNTAIN JOURNAL OF MATHEMATICS, 2021; 51 (2)

A class of third-order nonlinear autonomous differential equations is analyzed and solved. The first integral method suitable for the third-order auto......

EULER SUMS OF GENERALIZED ALTERNATING HYPERHARMONIC NUMBERS

期刊: ROCKY MOUNTAIN JOURNAL OF MATHEMATICS, 2021; 51 (4)

We define the notion of the generalized alternating hyperharmonic numbers, and show that Euler sums of the generalized alternating hyperharmonic numbe......

EXTREMAL VALUES FOR THE VARIATION OF THE RANDIC INDEX OF BICYCLIC GRAPHS

期刊: ROCKY MOUNTAIN JOURNAL OF MATHEMATICS, 2021; 51 (4)

Let G be a connected graph of order n. The variation of the Randie index of G is defined as R'(G) = Sigma(uv is an element of E(G)) 1/max{d(u), d(v)},......

BLOW-UP CRITERIA OF STRONG SOLUTIONS TO THE 3D MICROPOLAR FLUID EQUATIONS WITH PARTIAL VISCOSITIES

期刊: ROCKY MOUNTAIN JOURNAL OF MATHEMATICS, 2021; 51 (1)

This paper studies the blow-up criteria of strong solutions to the 3-dimensional incompressible micropolar fluid equations with partial viscosities. T......

GLOBAL STRONG SOLUTION TO THE MULTIDIMENSIONAL INHOMOGENEOUS INCOMPRESSIBLE HEAT CONDUCTING NAVIER-STOKES FLOWS WITH VACUUM

期刊: ROCKY MOUNTAIN JOURNAL OF MATHEMATICS, 2021; 51 (4)

We are concerned with the Cauchy problem of the multidimensional inhomogeneous incompressible heat conducting Navier-Stokes flows with fractional diss......

UNIVERSAL ENVELOPING ALGEBRAS OF GENERALIZED POISSON-ORE EXTENSIONS

期刊: ROCKY MOUNTAIN JOURNAL OF MATHEMATICS, 2021; 51 (2)

The main goal of this paper is to study the Poisson universal enveloping algebra of a generalized Poisson-Ore extension. We prove such a Poisson unive......

A NONHOMOGENEOUS BOUNDARY-VALUE PROBLEM FOR THE 5-TH KORTEWEG-DE VRIES EQUATION POSED ON THE HALF LINE

期刊: ROCKY MOUNTAIN JOURNAL OF MATHEMATICS, 2021; 51 (2)

We study the well-posedness of the 5-th Korteweg-de Vries (KdV) equation in the space H2+s(0,r) when the initial data is drawn from H2+s(0,r) and the ......

THE k-ALMOST YAMABE SOLITONS AND CONTACT METRIC MANIFOLDS

期刊: ROCKY MOUNTAIN JOURNAL OF MATHEMATICS, 2021; 51 (1)

We introduce the concept of a k-almost Yamabe soliton which extends naturally from Yamabe solitons. Our aim is to study the k-almost Yamabe soliton (g......

REPRESENTATIONS AND ONE-PARAMETER FORMAL DEFORMATIONS OF BIHOM-NOVIKOV SUPERALGEBRAS

期刊: ROCKY MOUNTAIN JOURNAL OF MATHEMATICS, 2021; 51 (2)

BiHom-Novikov superalgebras are generalized Novikov superalgebras endowed with two commuting multiplicative linear maps. The main purpose of this pape......

NONLINEAR *-JORDAN-TYPE DERIVATIONS ON *-ALGEBRAS

期刊: ROCKY MOUNTAIN JOURNAL OF MATHEMATICS, 2021; 51 (2)

Let A be a unital *-algebra with the unit I. Assume that A contains a nontrivial projection P which satisfies X A P = 0 implies X = 0 and X A.I P / = ......

MULTIPLE SOLUTIONS FOR THE FRACTIONAL p-LAPLACIAN EQUATION WITH HARDY-SOBOLEV EXPONENTS

期刊: ROCKY MOUNTAIN JOURNAL OF MATHEMATICS, 2021; 51 (1)

We study the fractional p-Laplacian problem with Hardy-Sobolev exponents. We prove: there is a lambda(0) > 0 such that for any lambda is an element......

COMPACT TOEPLITZ OPERATORS PRODUCTS ON HARDY-SOBOLEV SPACES OVER THE UNIT POLYDISK

期刊: ROCKY MOUNTAIN JOURNAL OF MATHEMATICS, 2021; 51 (2)

We study the compactness of finite sums of products of two Toeplitz operators on Hardy-Sobolev spaces over the unit polydisk H-beta(2)(D-n). We calcul......

FAST ALGORITHM BASED ON TT-M FE METHOD FOR MODIFIED CAHN-HILLIARD EQUATION

期刊: ROCKY MOUNTAIN JOURNAL OF MATHEMATICS, 2021; 51 (1)

We consider numerical methods for solving the modified Cahn-Hilliard equation involving strong nonlinearities. A fast algorithm based on time two-mesh......

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