期刊： CZECHOSLOVAK MATHEMATICAL JOURNAL, 2023; 73 (1)
Let [.] be the floor function. In this paper, we prove by asymptotic formula that when 1 < c < 3441/2539, then every sufficiently large positive......
期刊： CZECHOSLOVAK MATHEMATICAL JOURNAL, 2023; 73 (2)
We consider the equation dy(t)/dt = (A+B(t))y(t) (t (SIC) 0), where A is the generator of an analytic semigroup (e(At))t(SIC)0 on a Banach space X, B(......
期刊： CZECHOSLOVAK MATHEMATICAL JOURNAL, 2023; ()
Let R ? M be a trivial extension of a ring R by an R-R-bimodule M such that MR, RM, (R, 0)(R?M) and (R? M)(R, 0) have finite flat dimensions. We prove......
期刊： CZECHOSLOVAK MATHEMATICAL JOURNAL, 2023; ()
We obtain, by means of Banach's Fixed Point Theorem, convergence for the Picard iterations associated to a general nonlinear system of measure differe......
期刊： CZECHOSLOVAK MATHEMATICAL JOURNAL, 2023; ()
We provide some characterizations of rings R for which every (finitely generated) module belonging to a class C of R-modules is a direct sum of cyclic......
期刊： CZECHOSLOVAK MATHEMATICAL JOURNAL, 2023; ()
Let R be a fusion ring and R-C := R circle times C-Z be the corresponding fusion algebra. We first show that the algebra R(C )has only one left (right......
期刊： CZECHOSLOVAK MATHEMATICAL JOURNAL, 2023; ()
We characterize clean elements of R(L) and show that alpha is an element of R(L) is clean if and only if there exists a clopen sublocale U in L such t......
期刊： CZECHOSLOVAK MATHEMATICAL JOURNAL, 2023; 73 (1)
We investigate some properties of n-submodules. More precisely, we find a necessary and sufficient condition for every proper submodule of a module to......
期刊： CZECHOSLOVAK MATHEMATICAL JOURNAL, 2023; ()
It is proved that every pair of sufficiently large odd integers can be represented by a pair of equations, each containing two squares of primes, two ......
期刊： CZECHOSLOVAK MATHEMATICAL JOURNAL, 2023; ()
The self-consistent chemotaxis-fluid system{n(t)+u del n= triangle n- del (n del c) +del (n del phi),x is an element of ohm, t >0,c(t)+u del c= tri......
期刊： CZECHOSLOVAK MATHEMATICAL JOURNAL, 2023; ()
We study the non-existence of global classical solutions to 1D compressible heat-conducting micropolar fluid without viscosity. We first show that the......
期刊： CZECHOSLOVAK MATHEMATICAL JOURNAL, 2023; ()
We shall establish an explicit formula for the Davenport series in terms of trivial zeros of the Riemann zeta-function, where by the Davenport series ......
期刊： CZECHOSLOVAK MATHEMATICAL JOURNAL, 2023; ()
Let A = [a(ij)](mxn) be an m x n matrix of zeros and ones. The matrix A is said to be a Ferrers matrix if it has decreasing row sums and it is row and......
期刊： CZECHOSLOVAK MATHEMATICAL JOURNAL, 2023; 73 (1)
We give a constructive proof of the factorization theorem for the weighted Hardy space in terms of multilinear Calderon-Zygmund operators. The result ......
期刊： CZECHOSLOVAK MATHEMATICAL JOURNAL, 2023; 73 (2)
We study the mapping property of the commutator of Hardy-Littlewood maximal function on Triebel-Lizorkin spaces. Also, some new characterizations of t......
