純粋・応用数学・数学隣接分野（含むガロア理論）20

[過去ﾛｸﾞ] 純粋・応用数学・数学隣接分野（含むガロア理論）20 (1002ﾚｽ)
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488: 現代数学の系譜 雑談 ◆yH25M02vWFhP  [] 2025/06/09(月) 07:36:21.87 ID:u17nGVrx

>>487
ID:+VmcCR0T は、御大か
巡回ありがとうございます

>S先生はバスの入り口で
>「入口」を見て
>What is this lambda Laplacian?
>と尋ねられた。

Copilot に入れてみると
Q: What is this lambda Laplacian?
A:
The Laplacian is a differential operator that plays a crucial role in mathematics and physics, particularly in areas like potential theory, differential equations, and quantum mechanics. It is often denoted as Δ or ∇² and is defined as the sum of second partial derivatives:
[ \Delta f = \frac{\partial2} + \frac{\partial2} + \frac{\partial2} ]
If you're referring to a lambda Laplacian, it could relate to eigenvalues of the Laplacian operator in spectral theory. The eigenvalue problem for the Laplacian is:
[ \Delta f = \lambda f ]
where λ represents an eigenvalue associated with the Laplacian. This arises in various contexts, such as solving the Helmholtz equation, studying heat diffusion, and analyzing vibrational modes.
Would you like to explore its applications in functional analysis or spectral geometry?
(引用終り)

なので、”λ represents an eigenvalue associated with the Laplacian”と 固有値の連想ゲームです
バスの入り口に、Δ or ∇ が有ったのでしょうか？ （＾＾

http://rio2016.5ch.net/test/read.cgi/math/1745503590/488

499: 現代数学の系譜 雑談 ◆yH25M02vWFhP  [] 2025/06/09(月) 23:43:35.77 ID:u17nGVrx

>>498
>2022年にも来た

ID:ISVAs415 は、御大か
巡回ありがとうございます

下記ですね
”Dedicated to the 100th anniversary of the creation of the Bergman kernel ”か
”Haslinger”さん 二人います
Professor Fritz Haslinger さんと
Friedrich Haslinger (Universität Wien) さんと
同一人物か あるいは ご親戚か？

(参考)
https://sites.google.com/view/hayama-scv/2022
HAYAMA Symposium on Complex Analysis in Several Variables XXIII
Dedicated to the 100th anniversary of the creation of the Bergman kernel
July 23(Sat) – July 26(Tue), 2022
uly 27 and 28(Wed and Thu), 2022

Stefan Bergman publised his first paper on the reproducing kernel in 1922, which was his doctoral dissertation  under the supervision of v. Mises and Erh. Schmidt.  On the occasion of 100th anniversary, we plan to review recent progresses of the Bergman kernel and related topics.   The meeting will be held on site but  includes some  online talks.

https://lh6.googleusercontent.com/BI_CyAfBu2DJC--g1CaNGsDe9pBVVbznfV47wICATIagy74a-ldg1yGaruXIxE4gjLo0l8-2UgGtflP4y__XQN4XBR-aLr0mLVIthqLiCENSVdAi01wwgHG54Cz6zSpZK-VGDe5RBZSh9dRYaGkN2gw8P5gC5uAWNAoTh2OsD3lHWV2N2_qGQw=w1280
A birthday cake made in Vienna by courtesy of Professor Fritz Haslinger.

Invited Speakers include:  (* indicates online talk)

Friedrich Haslinger (Universität Wien)

http://rio2016.5ch.net/test/read.cgi/math/1745503590/499

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