Results 1 to 10 of about 280,284 (292)
Ceramic Tiles in the Mihrab of Al-Kashef Mosque in Assiut 1226 AH 1811 AD A Comparative Artistic Archaeological Study [PDF]
:This Research aims to study the Group of Tiles that cover the Mihrab of the Mosque of Prince Muhammad Kashif Bekzadeh in Assiut, those Tiles that embodied a Group of various Motifs that expressed the periods and stages of the development of Ottoman ...
Mamdouh Mohamed Elsayed Hassanein
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Undecidable Translational Tilings with Only Two Tiles, or One Nonabelian Tile [PDF]
AbstractWe construct an example of a group$$G = \mathbb {Z}^2 \times G_0$$G=Z2×G0for a finite abelian group $$G_0$$G0, a subsetEof $$G_0$$G0, and two finite subsets$$F_1,F_2$$F1,F2of G, such that it is undecidable in ZFC whether$$\mathbb {Z}^2\times E$$Z2×Ecan be tiled by translations of$$F_1,F_2$$F1,F2.
Rachel Greenfeld, Terence Tao
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This study deals with description of the furnace structure, studied during archaeological work on the territory of the upper part of one of the oldest towns in Siberia – Tobolsk (founded in 1587).
Natalya P. Turova , Petr G. Danilov
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The paper presents the results of rescue archaeological excavations carried out at the site of the former German forced labour camp KL Jawischowitz, a sub-camp of KL Auschwitz-Birkenau. It discusses the historical material related to individual phases of
Wojciech Tabaszewski +1 more
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The authors consider the golden Anosov automorphism \(G_A\) on the torus \(\mathbb{T}^2\), defined in such a way that the ratio of its unstable and stable eigenvalues is the golden number \((1+ \sqrt 5)/2\). They study the space \({\mathcal G}\) of all \(C^{1 + \alpha}\) diffeomorphisms that are topologically conjugate to \(G_A\) and possess an ...
Pinto, Alberto A. +2 more
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Given a list $1\times 1, 1\times a, 1\times b, \dots, 1\times c$ of rectangles, with $a,b,\dots,c$ non-negative, when can $1\times{t}$ be tiled by positive and negative copies of rectangles which are similar (uniform scaling) to those in the list? We prove that such a tiling exists iff $t$ is in the field $Q(a,b,\dots,c)$.
Keating, Kevin, King, Jonathan L.
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Recent Web technologies such as HTML5, JavaScript, and WebGL have enabled powerful and highly dynamic Web mapping applications executing on standard Web browsers.
Alejandro Zunino +5 more
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The study of ancient city sites provides valuable evidence for understanding human-land relationships. Qinghai Lake Basin, on the northeastern Tibetan Plateau, was a key location for economic and cultural exchanges between East and West in ancient China ...
Manping Sun +17 more
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AbstractWe study the minimal complexity of tilings of a plane with a given tile set. We note that every tile set admits either no tiling or some tiling withKolmogorov complexity of its (n×n)-squares. We construct tile sets for which this bound is tight: all (n×n)-squares in all tilings have complexity Ω(n).
Durand, Bruno +2 more
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Natural radioactivity content in various building materials of Chennai, Tamil Nadu, India
Natural radioactivity content in different types of building materials obtained from Chennai city has been determined. In this study, the most commonly used building materials such as clay bricks, cement, sediment, tiles, marbles, and granite have been ...
K S Lakshmi +2 more
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