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Kompakt Olmayan Yıldız Graf Üzerindeki Selfadjoint Olmayan Schrödinger Operatörünün Spektral Analizi

Authors: MUTLU, Gökhan;

Kompakt Olmayan Yıldız Graf Üzerindeki Selfadjoint Olmayan Schrödinger Operatörünün Spektral Analizi

Abstract

Bu çalışmada kenarlı , kenarlarının her biri sonsuz uzunluğa sahip kompakt olmayan yıldız graf üzerine etki eden selfadjoint olmayan Schrödinger operatörünün spektral özellikleri incelenmiştir. Burada grafın merkez köşesi üzerinde standart ya da Neumann koşulları olarak bilinen köşe koşulları ele alınmıştır. Literatürde metrik graflar üzerine etki eden diferensiyel operatörlerin spektral analizi ile ilgili oldukça fazla çalışma bulunmaktadır. Bu graflara üzerlerine etki eden diferensiyel operatörlerle birlikte kuantum graflar adı verilmektedir. Kuantum grafların fen bilimleri ve mühendislikte çok sayıda uygulamaları bulunması nedeniyle bu alan matematiksel fiziğin son yıllarda oldukça aktif bir araştırma alanı haline gelmiştir. Kuantum graflarla ilgili çalışmalarda genellikle Laplace operatörleri dikkate alınmaktadır. Bununla birlikte Schrödinger operatörü ele alınarak yapılan çalışmalar da bulunmaktadır. Ancak bu çalışmalarda ele alınan potansiyel reel değerlidir ve dolayısıyla uygun köşe koşullarıyla birlikte ortaya çıkan operatör selfadjointtir. Bu çalışmada ise potansiyeli kompleks değerli bir fonksiyondur. Dolayısıyla ortaya çıkan operatör selfadjoint değildir. Bu ise spektral analizin tamamen değişmesi anlamı taşır. Bu makalede kompakt olmayan yıldız graf üzerine etki eden kompleks değerli potansiyele sahip Schrödinger operatörünün özdeğerleri, spektral tekillikleri ve rezolvent operatörü elde edilmiştir.

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Turkey
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Keywords

Kuantum graf, Özdeğerler, Kuantum graf;Schrödinger operatörü;Selfadjoint olmayan operatörler;Özdeğerler;Rezolvent operatör, Selfadjoint olmayan operatörler, Rezolvent operatör, Schrödinger operatörü

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selected citations
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This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
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influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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impulse
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