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Start Over Author "Brown, Devin" Publication Type Reports
2 results on '"Brown, Devin"'

1. Cacti, Toggles, and Reverse Plane Partitions

Author

Brown, Devin, Elek, Balazs, and Halacheva, Iva

Subjects
Mathematics - Combinatorics, Mathematics - Representation Theory, 05E10, 17B10
Abstract

The cactus group acts combinatorially on crystals via partial Sch\"utzenberger involutions. This action has been studied extensively in type $A$ and described via Bender-Knuth involutions. We prove an analogous result for the family of crystals $B(n\varpi_1)$ in type $D$. Our main tools are combinatorial toggles acting on reverse plane partitions of height $n$. As a corollary, we show that the length one and two subdiagram elements generate the full cactus action, addressing conjectures of Dranowski, the second author, Kamnitzer, and Morton-Ferguson., Comment: 12 pages

Published
2024

2. Creative Programming for Young Minds...on the TRS-80. I-Volume VII and All Stars Programs.

Author

Brown, Devin

Abstract

These manuals provide self-teaching and individualized instruction activities to assist students in learning BASIC programming. Originally planned as a mathematics enrichment program for academically gifted children, three series of instructional workbooks and supplementary projects for seven microcomputers are now included to accommodate elementary, junior high, senior high, and adult students. The manuals are organized around five phases: (1) instructions, examples, exercises and recall experiences for learning commands and their logical organization; (2) mini-challenges which require sequential organization, creativity and logical thinking; (3) games; (4) All-Stars books which involve a higher level of understanding and applications related to real life; and (5) an open phase for students to create their own projects. Programming manuals are for use with the TRS-80, PET, APPLE, TI 99/41, VIC 20, Atari, and NEC microcomputers. Computer Related Enriched and Technologically Inspired Viable Education (CREATIVE) also publishes a monthly newsletter as a forum for student works, and offers workshops and consulting services for teachers and administrators. (LMM)

Published
1981

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