<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE article PUBLIC "-//NLM//DTD JATS (Z39.96) Journal Publishing DTD v1.3 20210610//EN" "JATS-journalpublishing1-3.dtd">
<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">cheb</journal-id><journal-title-group><journal-title xml:lang="ru">Чебышевский сборник</journal-title><trans-title-group xml:lang="en"><trans-title>Chebyshevskii Sbornik</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2226-8383</issn><publisher><publisher-name>Tula State Lev Tolstoy  Pedagogical University</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.22405/2226-8383-2025-26-1-62-75</article-id><article-id custom-type="elpub" pub-id-type="custom">cheb-1933</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>Статьи</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Article</subject></subj-group></article-categories><title-group><article-title>Об асимптотиках представлений пары целых чисел суммой квадратов и линейной формой с конгруэнциальным условием специального вида</article-title><trans-title-group xml:lang="en"><trans-title>On the asymptotics of representations by a sum of a pair of integers by a sum and a linear form with a congruential condition of a special form</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Пачев</surname><given-names>Урусби Мухамедович</given-names></name><name name-style="western" xml:lang="en"><surname>Pachev</surname><given-names>Urusbi Mukhamedovich</given-names></name></name-alternatives><bio xml:lang="ru"><p>доктор физико-математических наук, профессор</p></bio><bio xml:lang="en"><p>doctor of physical and mathematical sciences, professor</p></bio><email xlink:type="simple">urusbi@rambler.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Кодзоков</surname><given-names>Азамат Хасанович</given-names></name><name name-style="western" xml:lang="en"><surname>Kodzokov</surname><given-names>Azamat Khasanovich</given-names></name></name-alternatives><bio xml:lang="ru"><p>Кабардино-Балкарский государственный университет им. Х. М. Бербекова</p></bio><email xlink:type="simple">Kodzoko@mail.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Исакова</surname><given-names>Мариана Малиловна</given-names></name><name name-style="western" xml:lang="en"><surname>Isakova</surname><given-names>Mariana Malilovna</given-names></name></name-alternatives><bio xml:lang="ru"><p>кандидат физико-математических наук</p></bio><bio xml:lang="en"><p>candidate of physical and mathematical sciences</p></bio><email xlink:type="simple">isakova2206@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Нирова</surname><given-names>Марина Сефовна</given-names></name><name name-style="western" xml:lang="en"><surname>Nirova</surname><given-names>Marina Sefovna</given-names></name></name-alternatives><bio xml:lang="ru"><p>кандидат физико-математических наук</p></bio><bio xml:lang="en"><p>candidate of physical and mathematical sciences</p></bio><email xlink:type="simple">nirova_m@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Кабардино-Балкарский государственный университет им. Х. М. Бербекова</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Berbekov Kabardino-Balkarian State University</institution><country>Russian Federation</country></aff></aff-alternatives><aff xml:lang="en" id="aff-2"><institution>Berbekov Kabardino-Balkarian State University</institution><country>Russian Federation</country></aff><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>22</day><month>06</month><year>2025</year></pub-date><volume>26</volume><issue>1</issue><fpage>62</fpage><lpage>75</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Пачев У.М., Кодзоков А.Х., Исакова М.М., Нирова М.С., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Пачев У.М., Кодзоков А.Х., Исакова М.М., Нирова М.С.</copyright-holder><copyright-holder xml:lang="en">Pachev U.M., Kodzokov A.K., Isakova M.M., Nirova M.S.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://www.chebsbornik.ru/jour/article/view/1933">https://www.chebsbornik.ru/jour/article/view/1933</self-uri><abstract><p>В работе получены асимптотические формулы с остаточным членом для числа представлений пары целых чисел 𝑚 и 𝑛 соответственно суммой квадратов и линейной формой от 𝑠 ⩾ 5 переменных, причём каждое решение такой диофантовой системы удовлетворяет конгруэнциальному условию специального вида, связанному определенным образом с линейной формой. Асимптотика с остаточным членом для числа решений такой диофантовой системы выводится при 𝑁 → ∞, где 𝑁 = Δ𝑚 − 𝑛2, при этом Δ равняется сумме квадратов коэффициентов линейной формы.Кроме того, получены двусторонние оценки снизу и сверху для особого ряда исследуемой диофантовой системы, опираясь при верхней оценке на формулы для числа решений сравнения второй степени 𝑥21 + . . . + 𝑥2 𝑠 ≡ 𝑎 (mod 𝑝𝑘), где 𝑝 — простое число, 𝑎 — целое число, 𝑘 — натуральное число.Настоящая работа является продолжением ранее проведенного исследования, относящегося к случаю чётного числа переменных.</p></abstract><trans-abstract xml:lang="en"><p>In the work, asymptotic formulas with a remainder term are obtained for the number of representations of a pair of integers 𝑚 and 𝑛, respectively, as a sum of 𝑠 ⩾ 5 variables, and each solution of such a Diophantine system satisfies the congruential a condition of a special type, associated in a certain way with a linear form.Asymptotic formulas with a remainder term for the number of solutions of such a Diophantine system are derived for 𝑁 → ∞, where 𝑁 = Δ𝑚 − 𝑛2 and Δ equals the sum of the squares on the coefficients on the linear form. In addition, two-sided lower and upper bounds are obtained for a special series of Diophantine system under study based on the upper bound based on formulas for the number of solutions ofa congruence of the second degree modulo the power 𝑥21+ . . . + 𝑥2𝑠 ≡ 𝑎 (mod 𝑝𝑘) of the prime number, where 𝑎 is natural number.This work is a continuation of a previous study, relating to the case of an even number of variables.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>сумма квадратов</kwd><kwd>линейная форма</kwd><kwd>диофантова система</kwd><kwd>конгруэнциальное условие</kwd><kwd>число решений квадратного сравнения</kwd><kwd>асимптотическая формула</kwd><kwd>особый ряд диофантовой системы.</kwd></kwd-group><kwd-group xml:lang="en"><kwd>sum of squares</kwd><kwd>linear form</kwd><kwd>Diophantine system</kwd><kwd>congruential condition</kwd><kwd>number of solutions to quadratic congruence</kwd><kwd>estimates of a special series.</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Виноградов И. М. Об одном классе совокупных диофантовых уравнений // Изв. АН СССР, 1929. С. 355-376.</mixed-citation><mixed-citation xml:lang="en">Vinogradov, I. M. 1929. “On one class of aggregate Diophantine equations”, Izv. Academy of Sciences of the USSR, pp. 355–376.</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Виноградов И. М. Избранные труды. Изд-во АН СССР. — М., 1952. С. 151-168.</mixed-citation><mixed-citation xml:lang="en">Vinogradov, I. M. 1952, “Selected works”, Publishing house of the USSR Academy of Sciences, pp. 151–168.</mixed-citation></citation-alternatives></ref><ref id="cit3"><label>3</label><citation-alternatives><mixed-citation xml:lang="ru">Марджанишвили К. К. Об одновременном представлении 𝑛 чисел суммами полных первых, вторых, . . . , 𝑛-х степеней // Изв. АН СССР, сер. матем. 1 (1937), С. 609-631.</mixed-citation><mixed-citation xml:lang="en">Marjanishvilli, K. K. 1937, “On the simultaneous representation of complete first second, . . . , 𝑛-th degrees”, Izv. AN SSSR, ser. Mat., 4, pp. 609–634.</mixed-citation></citation-alternatives></ref><ref id="cit4"><label>4</label><citation-alternatives><mixed-citation xml:lang="ru">Pall G. Simultaneous quadratic and linear representations. Quart. J. Math. 2 (1931). P. 136-143.</mixed-citation><mixed-citation xml:lang="en">Pall, G. 1931, “Simultaneous quadratic and linear representations”, Quart. J. Math., 2, pp. 136–143.</mixed-citation></citation-alternatives></ref><ref id="cit5"><label>5</label><citation-alternatives><mixed-citation xml:lang="ru">Pall G. Simultaneous representations in a quadratic and linear form // Duke Math. J. S. (1941). P. 173-180.</mixed-citation><mixed-citation xml:lang="en">Pall, G. 1941, “Simultaneous representations in a quadratic and linear form”, Duke Math. J. S., pp. 173–180.</mixed-citation></citation-alternatives></ref><ref id="cit6"><label>6</label><citation-alternatives><mixed-citation xml:lang="ru">Kloosterman H. Simultane Darstellung zweier ganzen Zahlen al seiner Samme von ganzen Zahlen und deren Quadrat–Summe. Math. Ann. 118 (1942). S. 319-364.</mixed-citation><mixed-citation xml:lang="en">Kloosterman, H. 1942, “Simultane Darstellung zweier ganzen Zahlen al seiner Samme von ganzen Zahlen und deren Quadrat–Summe”, Math. Ann., 118, pp. 319–364.</mixed-citation></citation-alternatives></ref><ref id="cit7"><label>7</label><citation-alternatives><mixed-citation xml:lang="ru">de Bruijn N. G. Over het a antal oplossingen van het stelsel 𝑥21 +𝑥22 +𝑥23 = 𝑛, 𝑥1+𝑥2+𝑥3 = 𝑚, Nieuw. Arch. Wisk (2)22 (1943), S. 53-56.</mixed-citation><mixed-citation xml:lang="en">de Bruijn, N. G. 1943, “Over het a antal oplossingen van het stelsel 𝑥21 + 𝑥22 + 𝑥23 = 𝑛, 𝑥1 + 𝑥2 + 𝑥3 = 𝑚”, Nieuw. Arch. Wisk, (2)22, pp. 53–56.</mixed-citation></citation-alternatives></ref><ref id="cit8"><label>8</label><citation-alternatives><mixed-citation xml:lang="ru">Bronkhorst P. Over het a antal oplossingen van het stelsel Diophatische Vergelijkinder 𝑥21+ . . . + 𝑥2𝑠 = 𝑛, 𝑥1 + . . . + 𝑥𝑠 = 𝑚 vor 𝑠 = 6 en 𝑠 = 8. Diss. Groningen, 1943.</mixed-citation><mixed-citation xml:lang="en">Bronkhorst, P. 1943 “Over het a antal oplossingen van het stelsel Diophatische Vergelijkinder 𝑥21 + . . . + 𝑥2 𝑠 = 𝑛, 𝑥1 + . . . + 𝑥𝑠 = 𝑚 vor 𝑠 = 6 en 𝑠 = 8”, Diss. Groningen.</mixed-citation></citation-alternatives></ref><ref id="cit9"><label>9</label><citation-alternatives><mixed-citation xml:lang="ru">Van der Blij. On the theory of simultaneous linear and quadratic representation I–II, Proc. Kon. Acad. V. Wet. 50 (1947), 31-48.</mixed-citation><mixed-citation xml:lang="en">Van der Blij. 1947, “On the theory of simultaneous linear and quadratic representation I–II”, Proc. Kon. Acad. V. Wet., 50, pp. 31–48.</mixed-citation></citation-alternatives></ref><ref id="cit10"><label>10</label><citation-alternatives><mixed-citation xml:lang="ru">Ломадзе Г. А. Об одновременном представлении двух целых чисел суммами целых чисел и их квадратов // Труды Тбилисского матем. ин-та. 18 (1950). С. 153-181.</mixed-citation><mixed-citation xml:lang="en">Lomadze, G.A, 1950, “On the simultaneous representation of two integers by sums of integers and their squares”, Proceedings of the Tbilisi Mathematical Institute, 18, pp. 153–181.</mixed-citation></citation-alternatives></ref><ref id="cit11"><label>11</label><citation-alternatives><mixed-citation xml:lang="ru">Воронецкий А. Б., Малышев А. В. Об одновременном представлении пары чисел суммами целых чисел и их квадратов // Тр. МИАН СССР, 142 (1976). С. 122-134.</mixed-citation><mixed-citation xml:lang="en">Voronetsky, A. B., Malyshev A. V. 1976, “On the simultaneous representation of a pair of numbers by sums of integers and their squares”, Proceedings of the Steklov Mathematical Institute of the USSR, 142, pp. 122–134.</mixed-citation></citation-alternatives></ref><ref id="cit12"><label>12</label><citation-alternatives><mixed-citation xml:lang="ru">Малышев А. В. О представлении целых чисел положительными квадратичными формами // Труды МИАН СССР, Т. 65 (1962), С. 3-212.</mixed-citation><mixed-citation xml:lang="en">Malyshev, A. V. 1962, “On the representation of integers by positive quadratic forms”, Proceedings of the Steklov Mathematical Institute of the USSR, V. 65, pp. 3–212.</mixed-citation></citation-alternatives></ref><ref id="cit13"><label>13</label><citation-alternatives><mixed-citation xml:lang="ru">Малышев А. В. О формулах для количества представлений чисел положительными квадратичными формами // Актуальные проблемы аналитической теории чисел. Минск : Наука и техника, 1974.</mixed-citation><mixed-citation xml:lang="en">Malyshev, A. V. 1974, “On formulas for the number of representations of numbers by positive quadratic forms”, Actual problems of analytical number theory. Minsk. Science and Technology.</mixed-citation></citation-alternatives></ref><ref id="cit14"><label>14</label><citation-alternatives><mixed-citation xml:lang="ru">Вальфиш А. З. О представлении чисел суммами квадратов. Асимптотические Формулы // Успехи матем. наук. 7 (1952), № 6, C. 97-178,</mixed-citation><mixed-citation xml:lang="en">Valfish, A. Z. 1952, “On the representation of squares. Asymptotic formulas”, Uspekhi Matematicheskikh Nauk, 7, № . 6, pp. 97–178.</mixed-citation></citation-alternatives></ref><ref id="cit15"><label>15</label><citation-alternatives><mixed-citation xml:lang="ru">Walfisz A. A. ¨Uber die simultane Darstellung zweier ganzen Zahlen durch quadratische und lineare Formen // Acta Arithmetica XXXV (1979). S. 289-301.</mixed-citation><mixed-citation xml:lang="en">Walfisz, A. A. 1979, “ ¨Uber die simultane Darstellung zweier ganzen Zahlen durch quadratische und lineare Formen”, Acta Arithmetica XXXV, pp. 289–301.</mixed-citation></citation-alternatives></ref><ref id="cit16"><label>16</label><citation-alternatives><mixed-citation xml:lang="ru">Пачев У. М., Халилова Л. А. Об асимптотике числа представлений пары целых чисел квадратичной и линейной формами с конгруэнциальным условием // Матем. заметки. Т. 111, вып. 5 (2022). С. 726-737.</mixed-citation><mixed-citation xml:lang="en">Pachev, U. M., Khalilova L, A. 2022, “On the asymptotics on the number of representations of a pair of integers by quadratic and linear forms with a congruent condition”, Mathematical notes, Vol. 111, Iss. 5, pp. 726–737.</mixed-citation></citation-alternatives></ref><ref id="cit17"><label>17</label><citation-alternatives><mixed-citation xml:lang="ru">Urusbi Pachev, Rezuan Dokhov, Asamat Kodzokov. On Diophantine Systems with Sum of Squares and Linear Forms Satisfying a Congruential Condition of a Special Form // Current Problems of Applied Mathematics and Computer Systems, 2024, pp. 3-10.</mixed-citation><mixed-citation xml:lang="en">Urusbi Pachev, Rezuan Dokhov, Asamat Kodzokov. 2024, “On Diophantine Systems with Sum of Squares and Linear Forms Satisfying a Congruential Condition of a Special Form”, Current Problems of Applied Mathematics and Computer Systems, pp. 3–10.</mixed-citation></citation-alternatives></ref><ref id="cit18"><label>18</label><citation-alternatives><mixed-citation xml:lang="ru">Лидл Р., Нидеррайтер Г. Конечные поля. Т. 1. — М. : “Mup”. (1988).</mixed-citation><mixed-citation xml:lang="en">Lidl, R., Niederreiter G. 1988, “Finite fields”, M.:Mir, Vol. 1.</mixed-citation></citation-alternatives></ref><ref id="cit19"><label>19</label><citation-alternatives><mixed-citation xml:lang="ru">Милнор Дж., Хьюзмоллер Д. Симметрические билинейные формы. — М. : “Наука”. (1986).</mixed-citation><mixed-citation xml:lang="en">Mulnor, J., Huesmoller D, 1986, “Symmetric bilinear forms”, M.:Science.</mixed-citation></citation-alternatives></ref><ref id="cit20"><label>20</label><citation-alternatives><mixed-citation xml:lang="ru">Siegel C. L. Gesammelte Abhandlungen, I. — Berlin; Heidelberg; Springer–Verlag, 1966, S. 326-405.</mixed-citation><mixed-citation xml:lang="en">Siegel, C. L. 1966, “Gesammelte Abhandlungen, I”, Berlin; Heidelberg; Springer–Verlag, pp. 326–405.</mixed-citation></citation-alternatives></ref><ref id="cit21"><label>21</label><citation-alternatives><mixed-citation xml:lang="ru">Подсыпанин Е. В. О сингулярном ряде в задаче представления системы чисел системой форм // Зап. научн. сем. ЛОМИ Т. 50 (1975), C. 130-136.</mixed-citation><mixed-citation xml:lang="en">Podsypanin, E. V. 1975, “On the singular series in the problem of representing a system of numbers by a system”, Notes of scientific seminars LOMI, V. 50, pp. 130–136.</mixed-citation></citation-alternatives></ref><ref id="cit22"><label>22</label><citation-alternatives><mixed-citation xml:lang="ru">Birch B. J. Forms in many variables. Proc. Roy. Soc., 1962, A. 265, pp. 245-263, 23. Watson G. L. Quadratische Diophantine equations. Phil. Trans. Roy. Soc London A 253, pp. 227-254.</mixed-citation><mixed-citation xml:lang="en">Birch, B. J. 1962, “Forms in many variables”, Proc. Roy. Soc. A., 265, pp. 245–263,</mixed-citation></citation-alternatives></ref><ref id="cit23"><label>23</label><citation-alternatives><mixed-citation xml:lang="ru">Watson, G. L. “Quadratische Diophantine equations”, Phil. Trans. Roy. Soc. London A., 253, pp. 227–254.</mixed-citation><mixed-citation xml:lang="en">Watson, G. L. “Quadratische Diophantine equations”, Phil. Trans. Roy. Soc. London A., 253, pp. 227–254.</mixed-citation></citation-alternatives></ref></ref-list><fn-group><fn fn-type="conflict"><p>The authors declare that there are no conflicts of interest present.</p></fn></fn-group></back></article>
