Mathematics / Math.CA

All posts under category "Mathematics / Math.CA"

3 posts total
Sorted by date
Transfinite Sequences of Continuous and Baire Class 1 Functions

Transfinite Sequences of Continuous and Baire Class 1 Functions

๋ณธ ๋…ผ๋ฌธ์€ ์—ฐ์† ํ•จ์ˆ˜์™€ ๋ฐ”์ด์–ด ํด๋ž˜์Šค 1 ํ•จ์ˆ˜์˜ ์ˆœ์„œ ์œ ํ˜•์— ๋Œ€ํ•œ ์‹ฌ๋„ ์žˆ๋Š” ๋ถ„์„์„ ์ œ๊ณตํ•˜๋ฉฐ, ํŠนํžˆ ์ด๋Ÿฌํ•œ ํ•จ์ˆ˜๋“ค์˜ ์ฆ๊ฐ€ ๋˜๋Š” ๊ฐ์†Œํ•˜๋Š” ์ž˜ ์ •๋ ฌ๋œ ์‹œํ€€์Šค์˜ ๊ธธ์ด๋ฅผ ์กฐ์‚ฌํ•œ๋‹ค. ์ด ์—ฐ๊ตฌ๋Š” ๊ธฐ์กด์˜ ๊ณ ์ „์ ์ธ ๊ฒฐ๊ณผ๋ฅผ ํ™•์žฅํ•˜๊ณ , ๋ฉ”ํŠธ๋ฆญ ๊ณต๊ฐ„์—์„œ ๋ฐ”์ด์–ด ํด๋ž˜์Šค 1 ํ•จ์ˆ˜์˜ ์‚ฌ์Šฌ์— ๋Œ€ํ•œ ์ƒˆ๋กœ์šด ๊ด€์ ์„ ์ œ์‹œํ•œ๋‹ค. ์—ฐ์† ํ•จ์ˆ˜์™€ ๋ฐ”์ด์–ด ํด๋ž˜์Šค 1 ํ•จ์ˆ˜์˜ ์ˆœ์„œ ์œ ํ˜• ๋…ผ๋ฌธ์€ ๋จผ์ € ํด๋ž€๋“œ ๊ณต๊ฐ„์—์„œ ์—ฐ์† ํ•จ์ˆ˜์™€ ๋ฐ”์ด์–ด ํด๋ž˜์Šค 1 ํ•จ์ˆ˜์˜ ์‹œํ€€์Šค๋ฅผ ๋ถ„์„ํ•œ๋‹ค. ์ด๋Š” ๊ณ ์ „์ ์ธ ๊ฒฐ๊ณผ์ธ Kuratowski์˜ ์ •๋ฆฌ์— ๊ธฐ๋ฐ˜ํ•˜๋ฉฐ, ๋ฐ”์ด์–ด ํด๋ž˜์Šค 1 ํ•จ์ˆ˜์˜ ๋ชจ๋…ธํ†ค ์‹œํ€€์Šค์˜ ๊ธธ์ด

Mathematics
A Class of Special Solutions for the Ultradiscrete Painleve II   Equation

A Class of Special Solutions for the Ultradiscrete Painleve II Equation

: ๋ณธ ๋…ผ๋ฌธ์€ ํŒŒ์ธ๋ ˆ๋ธŒ II ๋ฐฉ์ •์‹์˜ ์ดˆ๊ณ ๊ธ‰ ์ด์‚ฐํ™”๋œ ํ˜•ํƒœ๋ฅผ ์—ฐ๊ตฌํ•˜๊ณ , ์ด๋ฅผ ํ†ตํ•ด ์–ป์–ด์ง€๋Š” ํŠน๋ณ„ํ•œ ํ•ด์— ๋Œ€ํ•ด ์‹ฌ๋„ ์žˆ๊ฒŒ ๋ถ„์„ํ•œ๋‹ค. ํŠนํžˆ, q ์ฐจ๋ถ„ ์œ ์‚ฌํ˜• ์—์–ด๋ฆฌ ๋ฐฉ์ •์‹์„ ๊ธฐ๋ฐ˜์œผ๋กœ udPII (์ดˆ๊ณ ๊ธ‰ ์ด์‚ฐํ™” ํŒŒ์ธ๋ ˆ๋ธŒ II) ๋ฐฉ์ •์‹์˜ ํŠน์ˆ˜ํ•ด๋ฅผ ๊ตฌ์ถ•ํ•˜๊ณ  ๊ทธ ์„ฑ์งˆ์„ ํƒ๊ตฌํ•œ๋‹ค. ์ดˆ๊ณผ ์ด์‚ฐํ™”์™€ p ์ดˆ๊ณผ ์ด์‚ฐํ™” ์ดˆ๊ณผ ์ด์‚ฐํ™”๋Š” ์ฃผ์–ด์ง„ ์ฐจ๋ถ„ ๋ฐฉ์ •์‹์„ ์…€ ์˜คํ† ๋งˆํ†ค์œผ๋กœ ๋ณ€ํ™˜ํ•˜๋Š” ๊ณผ์ •์ด๋‹ค. ์ด ๊ณผ์ •์—์„œ ์ข…์† ๋ณ€์ˆ˜ x<sub>n</sub> ์€ ์ด์‚ฐ ๊ฐ’์„ ๊ฐ€์ง€๊ฒŒ ๋˜๋ฉฐ, ์ด๋ฅผ ํ†ตํ•ด ์›๋ž˜์˜ ๋ฏธ๋ถ„ ๋ฐฉ์ •์‹์ด ์กฐ๊ฐ ์„ ํ˜• ๋ฐฉ์ •์‹์œผ๋กœ ๊ทผ์‚ฌ๋œ๋‹ค. ๊ทธ๋Ÿฌ๋‚˜ '์Œ์˜ ๋ฌธ์ œ'๋กœ

Mathematics Nonlinear Sciences
Another elementary proof of $: sum_{n ge 1}{1/{n^2}} = pi^2/6,$ and   a recurrence formula for $,zeta{(2k)}$

Another elementary proof of $: sum_{n ge 1}{1/{n^2}} = pi^2/6,$ and a recurrence formula for $,zeta{(2k)}$

: ๋ณธ ๋…ผ๋ฌธ์€ ๋ฆฌ๋งŒ ์ œํƒ€ ํ•จ์ˆ˜ ฮถ(s)์˜ ํŠน๋ณ„ํ•œ ๊ฒฝ์šฐ์ธ ฮถ(2k)์— ๋Œ€ํ•œ ์ƒˆ๋กœ์šด ์ ‘๊ทผ ๋ฐฉ๋ฒ•์„ ์ œ์‹œํ•˜๋ฉฐ, ํŠนํžˆ ฮถ(2) ฯ€ยฒ/6์ด๋ผ๋Š” ์ค‘์š”ํ•œ ๊ฒฐ๊ณผ๋ฅผ ๊ฐ„๋‹จํ•˜๊ฒŒ ์ฆ๋ช…ํ•˜๊ณ  ์žฌ๊ท€ ๊ณต์‹์„ ๋„์ถœํ•ฉ๋‹ˆ๋‹ค. ์ด ๋…ผ๋ฌธ์€ Dancs์™€ He (2006)์˜ ์—ฐ๊ตฌ์—์„œ ์‹œ์ž‘ํ•˜์—ฌ, sin(nฯ€) ๋Œ€์‹  cos(nฯ€)๋ฅผ ์‚ฌ์šฉํ•œ ๊ธ‰์ˆ˜ ์ „๊ฐœ ๋ฐฉ๋ฒ•์„ ํ†ตํ•ด ฮถ(2k)์— ๋Œ€ํ•œ ์ƒˆ๋กœ์šด ์ฆ๋ช…๊ณผ ์žฌ๊ท€ ๊ณต์‹์„ ์ œ์‹œํ•ฉ๋‹ˆ๋‹ค. 1. ์‹ฌํ”Œํ•œ ์ฆ๋ช…๊ณผ ์žฌ๊ท€ ๊ณต์‹ ๋…ผ๋ฌธ์€ ๋จผ์ € s 1์ผ ๋•Œ ํ•ด๋ฐ€ํ„ด ๊ธ‰์ˆ˜๊ฐ€ ๋ฐœ์‚ฐํ•จ์„ ์–ธ๊ธ‰ํ•˜๊ณ , ์ œ๊ณฑ ะ‘ะตั€ะฝัƒะปะปะธ ์ˆ˜ Bk๋ฅผ z/e^z 1์˜ ํƒ€์ผ๋Ÿฌ ๊ธ‰์ˆ˜ ์ „๊ฐœ์—์„œ z

Mathematics

< Category Statistics (Total: 702) >

Electrical Engineering and Systems Science
7
General
253
General Relativity
7
HEP-EX
5
HEP-PH
12
HEP-TH
5
MATH-PH
3
NUCL-TH
1
Quantum Physics
9

Start searching

Enter keywords to search articles

โ†‘โ†“
โ†ต
ESC
โŒ˜K Shortcut