Geographic information systems gis have become important tools in public planning activities (e.g, in environmental or utility management). This type of activity requires the creation and management of alternative scenarios, as well as analysis of temporal data evolution. Existing systems provide limited support for these operations, and appropriate tools are yet to be developed. This paper pre...

Handwritten signature is being used in various applications on daily basis. The problem arises when someone decides to imitate our signature and steal our identity. Therefore, there is a need for adequate protection of signatures and a need for systems that can, with a great degree of certainty, identify who is the signatory. This paper presents previous work in the field of signature and write...

Let K ⊂ L be a field extension. Given K-subspaces A,B of L, we study the subspace 〈AB〉 spanned by the product set AB = {ab | a ∈ A, b ∈ B}. We obtain some lower bounds on dimK〈AB〉 and dimK〈B 〉 in terms of dimK A, dimK B and n. This is achieved by establishing linear versions of constructions and results in additive number theory mainly due to Kemperman and Olson.

the aim of this paper is to establish random coincidence point results for weakly increasing random operators in the setting of ordered metric spaces by using generalized altering distance functions. our results present random versions and extensions of some well-known results in the current literature.

We characterize ideals of subsets of natural numbers for which some versions of Ramsey’s theorem and Schur’s theorem hold. These are similar to generalizations shown by Frankl, Graham and Rödl in [6]. We show that, in some sense, Ramsey’s theorem, theorem of Bolzano-Weierstrass and “monotone subsequence” theorem characterize the same class of ideals.

A theorem published by A. Grzegorczyk in 1955 states a certain kind of effective uniform continuity of computable functionals that transform systems of total functions in the set of the natural numbers and of natural numbers into natural numbers. Namely, for any such functional a computable functional with one function-argument and the same number-arguments exists such that the values of the fi...

The aim of this note is to inform the interested reader about the possibility of obtaining several new fonts: Croatian Glagolitic (round – sometimes called Bulgarian glagolitic, angular, Baška tablet, cursive, ligatures, the Baromić broken ligatures, calligraphic), Croatian Cyrillic, stećak ornaments and Croatian wattle patterns. They represent a considerable extension of the first version of G...

The article tells about the life and work of one representative Hanafi school Kazakh origin Ahmad ibn Mansur al-Ispidjabi, his teachers students. Although there is some information career a scientist, very little students, including that they need clarification. also describes most important al-Ispidjabi "Sharh Mukhtasar at-Tahawi", its manuscript versions in libraries modern world. Because thi...