Výsledky vyhledávání - "Kevin K. Ferland"

Autor: Kevin K. Ferland

Publikováno v: Recreational Mathematics Magazine. 7:1-7

We consider different ways to count the number of clues in American-style crossword puzzle grids. One yields a basic parity result for symmetric square grids. Another works efficiently even for non-symmetric grids that are already numbered. We furthe

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ea7311842cd6dbbd1fed2dd00282c09b
https://doi.org/10.2478/rmm-2020-0001

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Extending Two Classic Proofs of the Pythagorean Theorem to the Law of Cosines

Autor: Kevin K. Ferland

Publikováno v: Mathematics Magazine. 90:182-186

Two well-known proofs of the Pythagorean theorem are generalized to prove the law of cosines in a geometrically elegant way by computing areas.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a8ced877eb7de05c51ffc6d459a4bce4
https://doi.org/10.4169/math.mag.90.3.182

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Record Crossword Puzzles

Autor: Kevin K. Ferland

Publikováno v: The American Mathematical Monthly. 121:534-536

The maximum number of clues possible for a 15 × 15 daily New York Times crossword puzzle is shown to be 96, and all possible puzzle grids with 96 clues are presented. Moreover, a crossword puzzle with 96 clues is given, in the theme of this result.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a8411509f2ca530b190f1c8ba2812635
https://doi.org/10.4169/amer.math.monthly.121.06.534

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Ice-core sulfate from three northern hemisphere sites: Source and temperature forcing implications

Autor: Paul Andrew Mayewski, M. S. Twickler, Mary Jo Spencer, Kevin K. Ferland, Gerald Holdsworth, L. D. Meeker, Michael C. Morrison, Sallie I. Whitlow

Publikováno v: Atmospheric Environment. Part A. General Topics. 27:2915-2919

Comparison of ice-core nss sulfate records (two sites in Greenland and one in the North Pacific) with temperature change records for the regions including these core sites provides further confirmation that change in the concentration of anthropogeni

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::88684662910cdc933431e785dae2cd1e
https://doi.org/10.1016/0960-1686(93)90323-q

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The 𝑅𝑂(𝐺)-graded equivariant ordinary homology of 𝐺-cell complexes with even-dimensional cells for 𝐺=ℤ/𝕡

Autor: Kevin K. Ferland, L. Gaunce Lewis

Publikováno v: Memoirs of the American Mathematical Society. 167

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::15bd224de45377b01389d6024b3d156b
https://doi.org/10.1090/memo/0794

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Greenland ice core 'signal' characteristics: An expanded view of climate change

Autor: Jørgen Peder Steffensen, Paul Andrew Mayewski, L. D. Meeker, Kevin K. Ferland, Mark S. Twickler, Sallie I. Whitlow, Debra A. Meese, Michael C. Morrison, Michel Legrand

Publikováno v: Journal of Geophysical Research. 98:12839

The last millenium of Earth history is of particular interest because it documents the environmental complexities of both natural variability and anthropogenic activity. We have analyzed the major ions contained in the Greenland Ice Sheet Project 2 (

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::937ecc382dec768c2480263a7ea4aba4
https://doi.org/10.1029/93jd01085

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