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1
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34247342675
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Tiling figures of the plane with two bars
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The authors consider the problem of tiling a region with horizontal n × 1 and vertical 1 × m rectangles. Their main result is that, for n ≥ 2 and m > 2, deciding whether such a tiling exists is an NP-complete question. They also study several specializations of this problem
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D. Beauquier, M. Nivat, Rémila E., E. Robson. Tiling figures of the plane with two bars. Comput. Geom. 5 (1995), 1-25. The authors consider the problem of tiling a region with horizontal n × 1 and vertical 1 × m rectangles. Their main result is that, for n ≥ 2 and m > 2, deciding whether such a tiling exists is an NP-complete question. They also study several specializations of this problem.
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(1995)
Comput. Geom
, vol.5
, pp. 1-25
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Beauquier, D.1
Nivat, M.2
Rémila, E.3
Robson, M.4
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2
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0000192876
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The dissection of rectangles into squares
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To each perfect tiling of a rectangle, the authors associate a certain graph and a flow of electric current through it. They show how the properties of the tiling are reflected in the electrical network. They use this point of view to prove several results about perfect tilings, and to provide new methods for constructing them
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R. Brooks, C. Smith, A. Stone and W. Tutte. The dissection of rectangles into squares. Duke Math. J. 7 (1940), 312-340. To each perfect tiling of a rectangle, the authors associate a certain graph and a flow of electric current through it. They show how the properties of the tiling are reflected in the electrical network. They use this point of view to prove several results about perfect tilings, and to provide new methods for constructing them.
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(1940)
Duke Math. J.
, vol.7
, pp. 312-340
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Brooks, R.1
Smith, C.2
Stone, A.3
Tutte, W.4
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3
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0001250041
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Tiling with polyominoes and combinatorial group theory
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2 using a finite set of tiles. By studying the way in which the boundaries of the tiles fit together to give the boundary of the region, they give a necessary condition for a tiling to exist, using the language of combinatorial group theory
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2 using a finite set of tiles. By studying the way in which the boundaries of the tiles fit together to give the boundary of the region, they give a necessary condition for a tiling to exist, using the language of combinatorial group theory.
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(1990)
J. Combin. Theory Ser. A
, vol.53
, pp. 183-208
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Conway, J.1
Lagarias, J.2
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4
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0041128204
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Filling boxes with bricks
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n, then the brick can only tile boxes that are multiples of it. The converse is also shown to be true
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n, then the brick can only tile boxes that are multiples of it. The converse is also shown to be true.
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(1969)
Amer. Math. Monthly
, vol.76
, pp. 37-40
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de Bruijn, N.1
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5
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0040075919
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Simple perfect squared square of lowest order
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The unique perfect tiling of a square using the minimum possible number of squares, 21, is exhibited
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A. Duijvestijn. Simple perfect squared square of lowest order. J. Combin. Theory Ser. B 25 (1978), 240-243. The unique perfect tiling of a square using the minimum possible number of squares, 21, is exhibited.
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(1978)
J. Combin. Theory Ser. B
, vol.25
, pp. 240-243
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Duijvestijn, A.1
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6
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77951136313
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Alternating sign matrices and domino tilings I, II
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n(n+1)/2 domino tilings. Four proofs are given, exploiting the connections of this object with alternating-sign matrices, monotone triangles, and the representation theory of GL(n). The relation with Lieb's square-ice model is also explained
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n(n+1)/2 domino tilings. Four proofs are given, exploiting the connections of this object with alternating-sign matrices, monotone triangles, and the representation theory of GL(n). The relation with Lieb's square-ice model is also explained.
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(1992)
J. Algebraic Combin
, vol.1
, pp. 111-132
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Elkies, N.1
Kuperberg, G.2
Larsen, M.3
Propp, J.4
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7
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84996204867
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Dimer problem in statistical mechanics-an exact result
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A formula for the number of domino tilings of a rectangle is given in the language of statistical mechanics
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M. Fisher and H. Temperley. Dimer problem in statistical mechanics-an exact result. Philosophical Magazine 6 (1961), 1061-1063. A formula for the number of domino tilings of a rectangle is given in the language of statistical mechanics.
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(1961)
Philosophical Magazine
, vol.6
, pp. 1061-1063
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Fisher, M.1
Temperley, H.2
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8
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0041103802
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Tiling a square with similar rectangles
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The authors show that a square can be tiled with rectangles similar to the 1 × u rectangle if and only if u is a zero of a polynomial with integer coefficients, all of whose zeros have positive real part
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C. Freiling and D. Rinne. Tiling a square with similar rectangles. Math. Res. Lett 1 (1994), 547-558. The authors show that a square can be tiled with rectangles similar to the 1 × u rectangle if and only if u is a zero of a polynomial with integer coefficients, all of whose zeros have positive real part.
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(1994)
Math. Res. Lett
, vol.1
, pp. 547-558
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Freiling, C.1
Rinne, D.2
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9
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0004190537
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This book provides an extensive account of various aspects of tilings, with an emphasis on tilings of the plane with a finite set of tiles. For example, the authors carry out the task of classifying several types of tiling patterns in the plane. Other topics discussed include perfect tilings of rectangles and aperiodic tilings of the plane, New York.: W. H. Freeman and Company
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B. Grünbaum and G. Shephard. Tilings and patterns. W. H. Freeman and Company, New York (1987). This book provides an extensive account of various aspects of tilings, with an emphasis on tilings of the plane with a finite set of tiles. For example, the authors carry out the task of classifying several types of tiling patterns in the plane. Other topics discussed include perfect tilings of rectangles and aperiodic tilings of the plane.
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(1987)
Tilings and Patterns
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Grünbaum, B.1
Shephard, G.2
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10
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84963056434
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On representatives of subsets
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i for each i. He proves that such a system exists if and only if, for each k = 1, ..., m, the union of any k of the sets contains at least k elements
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i for each i. He proves that such a system exists if and only if, for each k = 1,..., m, the union of any k of the sets contains at least k elements.
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(1935)
J. London Math. Soc
, vol.10
, pp. 26-30
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Hall, P.1
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11
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0003979257
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arXiv: math. CO/9801068. In a domino tiling of an Aztec diamond, the diamond is partitioned into five regions: Four outer regions near the corners where the tiles are neatly lined up, and one central region where they do not follow a predictable pattern. The authors prove the Arctic circle theorem: In a random tiling of a large Aztec diamond, the central region is extremely close to a perfect circle inscribed in the diamond
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W. Jockusch, J. Propp and P. Shor P. Random domino tilings and the Arctic Circle theorem, preprint, 1995, arXiv: math. CO/9801068. In a domino tiling of an Aztec diamond, the diamond is partitioned into five regions: Four outer regions near the corners where the tiles are neatly lined up, and one central region where they do not follow a predictable pattern. The authors prove the Arctic circle theorem: In a random tiling of a large Aztec diamond, the central region is extremely close to a perfect circle inscribed in the diamond.
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(1995)
Random domino tilings and the Arctic Circle theorem, preprint
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Jockusch, W.1
Propp, J.2
Shor, P.P.3
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12
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0000113399
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The statistics of dimers on a lattice I. The number of dimer arrangements on a quadratic lattice
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Kasteleyn proves exact and asymptotic formulas for the number of domino tilings of a rectangle, with edges or with periodic boundary conditions. He then discusses the relationship between this problem and the Ising model of statistical mechanics
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P. Kasteleyn. The statistics of dimers on a lattice I. The number of dimer arrangements on a quadratic lattice. Physica 27 (1961), 1209-1225. Kasteleyn proves exact and asymptotic formulas for the number of domino tilings of a rectangle, with edges or with periodic boundary conditions. He then discusses the relationship between this problem and the Ising model of statistical mechanics.
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(1961)
Physica
, vol.27
, pp. 1209-1225
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Kasteleyn, P.1
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13
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0001625601
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Packing a rectangle with congruent n-ominoes
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Klarner investigates the problem of tiling a rectangle using an odd number of copies of a single polyomino. He also characterizes the rectangles that can be tiled with copies of an a × b rectangle, and the rectangles that can be tiled with copies of a certain octomino
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D. Klarner. Packing a rectangle with congruent n-ominoes. J. Combin. Theory 7 (1969), 107-115. Klarner investigates the problem of tiling a rectangle using an odd number of copies of a single polyomino. He also characterizes the rectangles that can be tiled with copies of an a × b rectangle, and the rectangles that can be tiled with copies of a certain octomino.
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(1969)
J. Combin. Theory
, vol.7
, pp. 107-115
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Klarner, D.1
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14
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51249163072
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Tilings of the square with similar rectangles
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The authors show that a square can be tiled with rectangles similar to the 1 × u rectangle if and only if u is a zero of a polynomial with integer coefficients, all of whose zeros have positive real part
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M. Laczkovich and G. Szekeres. Tilings of the square with similar rectangles. Discrete Comput. Geom 13 (1995), 569-572. The authors show that a square can be tiled with rectangles similar to the 1 × u rectangle if and only if u is a zero of a polynomial with integer coefficients, all of whose zeros have positive real part.
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(1995)
Discrete Comput. Geom
, vol.13
, pp. 569-572
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Laczkovich, M.1
Szekeres, G.2
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15
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0038817921
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Tile invariants: New horizons
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Given a finite set of tiles T, the group of invariants G(T) consists of the linear relations that must hold between the number of tiles of each type in tilings of the same region. This paper surveys what is known about G(T). These invariants are shown to be much stronger than classical coloring arguments
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I. Pak. Tile invariants: New horizons. Theoret. Comput. Sci. 303 (2003), 303-331. Given a finite set of tiles T, the group of invariants G(T) consists of the linear relations that must hold between the number of tiles of each type in tilings of the same region. This paper surveys what is known about G(T). These invariants are shown to be much stronger than classical coloring arguments.
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(2003)
Theoret. Comput. Sci.
, vol.303
, pp. 303-331
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Pak, I.1
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16
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0008565652
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An algorithm for packing squares
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Paulhus presents an algorithm for packing an infinite set of increasingly small rectangles with total area A into a rectangle of area very slightly larger than A. He applies his algorithm to three known problems of this sort, obtaining extremely tight packings
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M. Paulhus. An algorithm for packing squares. J. Combin. Theory Ser. A 82 (1998), 147-157. Paulhus presents an algorithm for packing an infinite set of increasingly small rectangles with total area A into a rectangle of area very slightly larger than A. He applies his algorithm to three known problems of this sort, obtaining extremely tight packings.
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(1998)
J. Combin. Theory Ser. A
, vol.82
, pp. 147-157
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Paulhus, M.1
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17
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0003687167
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preprint, arXiv: math/0209005. It is shown that the set of orientations of a graph that have the same flow-differences around all circuits can be given the structure of a distributive lattice. This generalizes similar constructions for alternating-sign matrices and matchings
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J. Propp. Lattice structure for orientations of graphs, preprint, 1994, arXiv: math/0209005. It is shown that the set of orientations of a graph that have the same flow-differences around all circuits can be given the structure of a distributive lattice. This generalizes similar constructions for alternating-sign matrices and matchings.
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(1994)
Lattice structure for orientations of graphs
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Propp, J.1
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18
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84924479545
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This book discusses the solution of several tiling problems using tools from modern algebra. Two sample problems are the following: A square cannot be tiled with 30°-60°-90° triangles, and a square of odd integer area cannot be tiled with triangles of unit area, Washington, DC: Mathematical Association of America
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S. Stein and S. Szabó. Algebra and tiling. Homomorphisms in the service of geometry. Mathematical Association of America: Washington, DC, 1994. This book discusses the solution of several tiling problems using tools from modern algebra. Two sample problems are the following: A square cannot be tiled with 30°-60°-90° triangles, and a square of odd integer area cannot be tiled with triangles of unit area.
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(1994)
Algebra and Tiling Homomorphisms in the Service of Geometry
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Stein, S.1
Szabó, S.2
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19
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0000821829
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Conway's tiling groups
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The author presents a technique of Conway's for studying tiling problems. Sometimes it is possible to label the edges of the tiles with elements of a group, so that a region can be tiled if and only if the product (in order) of the labels on its boundary is the identity element. The idea of a height function that lifts tilings to a three-dimensional picture is also presented. These techniques are applied to tilings with dominoes, lozenges, and tribones
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W. Thurston. Conway's tiling groups. Amer. Math. Monthly 97 (1990), 757-773. The author presents a technique of Conway's for studying tiling problems. Sometimes it is possible to label the edges of the tiles with elements of a group, so that a region can be tiled if and only if the product (in order) of the labels on its boundary is the identity element. The idea of a height function that lifts tilings to a three-dimensional picture is also presented. These techniques are applied to tilings with dominoes, lozenges, and tribones.
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(1990)
Amer. Math. Monthly
, vol.97
, pp. 757-773
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Thurston, W.1
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20
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0011630728
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Fourteen proofs of a result about tiling a rectangle
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Wagon gives 14 proofs of the following theorem: If a rectangle can be tiled by rectangles, each of which has at least one integral side, then the tiled rectangle has at least one integral side
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S. Wagon. Fourteen proofs of a result about tiling a rectangle. Amer. Math. Monthly 94 (1987), 601-617. Wagon gives 14 proofs of the following theorem: If a rectangle can be tiled by rectangles, each of which has at least one integral side, then the tiled rectangle has at least one integral side.
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(1987)
Amer. Math. Monthly
, vol.94
, pp. 601-617
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Wagon, S.1
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