Directory UMM :Journals:Journal_of_mathematics:OTHER:
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In the topological setting, this group of torsion elements occurs as the kernel of a properly discontinuous action.. This theorem was proved in several steps, where the first step
In [8] an analogue of Nagumo’s theorem is proved for some boundary- value problems connected with differential equations of the third order, whereas in [9] and [10] the method
Using the concept of principal system of solutions of a self-adjoint even order differential equation, the following oscillation criterion was proved in [10]..
The theorem on expansion of an arbitrary H¨older class function in eigen functions of the in- tegral equation depending on both the parameter and the singular operator is proved..
The question as to the validity of Fatou’s theorem for a bicylinder was considered in [7], where it is proved that in the neighborhood of some point the density of the Poisson
The notion of leaf-to-leaf transforming homotopic mappings is introduced, and the homotopy axiom for vertical cohomologies is proved (Theorem 2.5).. The notion of a relative group
At last, a common coincidence points theorem has been proved for the combinations of crisp mappings & fuzzy mappings together using the notion of R – weakly commuting mappings..
The singularity of the Cayley numbers was also proved: a theorem due to Bruck and Kleinfeld (1957) asserts that an alternative division ring is neces- sarily a division algebra
