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A problem of identification of a special 2d memory kernel in an integro–differential hyperbolic equation

Ushbu maqola matematik fizikadagi teskari muammolarni o'rganishga bag'ishlangan. Xususan, ikkinchi tartibli giperbolik integrodiferensial tenglamaning integrallangan qismidagi xotira yadrosini tiklash muammosi ko'rib chiqiladi. Tadqiqotda noma'lum yadro fazoviy o'zgaruvchilarga nisbatan trigonometrik ko'phad shaklida bo'lishi va vaqt o'zgaruvchisiga nisbatan uzluksiz koeffitsientlarga ega bo'lishi taxmin qilinadi. Maqolada to'g'ridan-to'g'ri muammo uchun boshlang'ich-chegaraviy qiymatli masala va teskari muammo uchun mahalliy mavjudlik va barqarorlik baholashlari keltirilgan.

🔑 Kalit soʻz🎯 100.0%

Adamar ma’nosidagi karrali maxsus operatorlar va ularning ba’zi bir tadbiqlari“ mavzusidagi ma’ruzasi

Dissertatsiya Adamar ma'nosidagi maxsus integrallarni, ularning xossalarini o'rganishga bag'ishlangan. Bir va ko'p o'zgaruvchili funksiyalar uchun chiziqli integral tenglamalar yechimining mavjudligi va yagonaligi masalalari ko'rib chiqilgan. Iteratsiyalangan yadro va rezolventa tushunchalari kiritilib, yechimlar topilgan. Tadqiqot natijalari matematik fizika masalalarini yechishda qo'llanilishi mumkin.

🔑 Kalit soʻz🎯 71.4%

Maxsus integral tengsizliklar va ularning tadbiqlari.

Ushbu kitob maxsus integral tengsizliklar nazariyasiga bag'ishlangan bo'lib, ularning integral va integro-differensial tenglamalarni tadqiq qilishga tadbiqlari ko'rib chiqiladi. Kitobda integral tengsizliklar, Volterra tenglamalari, Gronuoll-Bellman tengsizliklari va ularning umumlashmalari, shuningdek, integro-differensial tenglamalar yechimlarining mavjudligi, yagonaligi va xossalari kabi mavzularga oid yangi teoremalar isbotlangan. Kitob O'zbekiston va chet ellik olimlarning integral tengsizliklar nazariyasiga qo'shgan hissalarini aks ettiradi.

🔑 Kalit soʻz🎯 70.5%

Elementar matematikadagi ba'zi masalalar va ularni yechishning o'ziga xos xususiyatlar

Ushbu dissertatsiya elementar matematikada, xususan ayniy almashtirish va yasashga doir masalalar hamda tenglama va tengsizliklarni topish masalalari bo'yicha chuqur tahlilni o'z ichiga oladi. U o'quvchilarda mustaqil fikrlashni, irodani, diqqatni jamlashni, ijodkorlikni, mustaqillikni va tanqidiy fikrlashni rivojlantirishga qaratilgan. Kitobda nostandart masalalarni yechish usullari va ularning amaliyotda qo'llanilishi batafsil yoritilgan.

🔑 Kalit soʻz🎯 70.3%

Ўрама кўринишдаги гиперболик интегро-дифференциал тенгламаларда махсус икки ўлчовли ядроларни аниқлаш масалаларини тадқиқ қилиш

Ushbu doktorlik dissertatsiyasi o'ramali ko'rinishdagi giperbolik integro-differensial tenglamalar uchun maxsus ikki o'lchovli yadrolarni aniqlash masalalarini tadqiq qilishga bag'ishlangan. Tadqiqotda ushbu turdagi tenglamalar uchun to'g'ri va teskari masalalar o'rganilib, ularning yechimlarini topish usullari ishlab chiqilgan. Xususan, viscoelasticity va elektrodinamika kabi sohalardagi murakkab jarayonlarni modellashtirishda qo'llaniladigan bunday tenglamalar uchun yadrolarni aniqlashning nazariy va amaliy jihatlari ko'rib chiqilgan.

🔑 Kalit soʻz🎯 70.3%

Applications of oscillatory integrals to solutions of generalized hyperbolic equations.

Ushbu magistrlik dissertatsiyasi giperbolik tenglamalarning umumlashtirilgan yechimlariga tebranuvchi integrallarni qo'llashga bag'ishlangan. Dissertatsiyada konvolyutsiya operatorlarining LP dan LP' ga chegaralanganligi, Gauss xaritasining roli, faza funksiyasining tasnifi va xususiyatlari, giper sirtlarda qo'llab-quvvatlangan o'lchovlar uchun baholashlar, A∞ tipidagi singularliklar, hamda Koshi masalasining yechimlari bilan bog'liq masalalar o'rganilgan.

🔑 Kalit soʻz🎯 70.1%

Решение нелокальных задач первого рода для уравнений гиперболического типа второго порядка с сингулярными коэффициентами

The journal "Problems of Modern Science and Education" No. 6 (126) in 2018 covers a wide range of scientific research, including physics and mathematics, biology, technical sciences, historical sciences, economic sciences, geographical sciences, pedagogical sciences, philological sciences, medical sciences, and philosophy. The journal features articles on solving non-local problems for hyperbolic equations, the ecological basis for predicting the number of green apple aphid, the regulation of the electrical activity of ureters with histamine, experimental equipment for investigating innovative methods of tube drawing, the features of calculation schemes in the choice of parameters of suspension systems of transport and technological machines, the study of temperature sensor circuits for radiation resistance, the calculation of the coefficient of technological efficiency of printed circuit boards, the problems of accounting for small businesses, the use of cash flow indicators in assessing the efficiency of financial strategies, the perspectives of international scientific and technological cooperation of Russia in the field of civil aviation, the development of an assessment method for master's programs, the study of precedent phenomena and phraseological expressions, the naming of orographic objects based on natural-geographical signs and features, the housing and economic conditions in the postwar period in the hero-city of Novorossiysk, the analysis of the relationship between the development of the Russian economy and small enterprises, the problem of social and communicative development of children of preschool age, aesthetic education of junior pupils by means of art, the fate of N.Ya. Danilevsky's heritage in the XXI century, questions of applied ethics in the light of N. Berdyaev's personalism, the recognition of voice binding dysfunction under laryngospasm in children, the evaluation of the effectiveness of some approaches in emergency medical assistance in diffunction of voice bindings in children, the features of electronic microscopy of kidney nephrons and weights of rat bodies in long-term food deprivation at highlands, and the formalization of positioning of stable isotopes.

🔑 Kalit soʻz🎯 70.1%

A Problem With an Analog of Frankl Condition on the Characteristics for Gellerstedt Equation With Singular Coefficient

Ushbu maqola Frankl shartiga o'xshash chegaraviy shartga ega bo'lgan, xususiyatlar bo'yicha umumlashtirilgan Gellerstedt tenglamasi bilan aralash tipdagi tenglamalar uchun chegaraviy qiymat muammosini o'rganadi. Mualliflar ushbu muammoning yechimi mavjudligini va yagonaligini isbotlaydi. Maqolada tenglamaning xususiyatlari, chegaraviy shartlar va yechimning mavjudligi hamda yagonaligini ko'rsatuvchi asosiy natijalar bayon etilgan.

🔑 Kalit soʻz🎯 69.8%