Александров А. Г. (ИПУ РАН, Лаборатория 20). Публикации

№Библиографическая ссылкаГод

Монографии
1Александров А.Г. Оптимальные и адаптивные системы. М.: Высшая школа, 1989. – 263 с.1989
2Александров А.Г. Синтез регуляторов многомерных систем. М.: Издательство "Машиностроенеи", 1986. – 272 с.1986

Брошюры
3Александров А.Г. Logarithmic Connections Along Saito Free Divisors. -: -, 2006. – 21 с.2006
4Александров А.Г. Picard-Fuchs System for Ak -Singularities. -: -, 2006. – 18 с.2006
5Александров А.Г. Theory of Logarithmic Differential Forms and Its Applications. -: -, 2006. – 32 с.2006
6Александров А.Г. Theory of Non-Isolated Saito Singularities. -: -, 2006. – 24 с.2006
7Александров А.Г. Picard-Fuchs System for Ak-Singularities, Versal Integrals and Hornhypergeometric Functions. -: -, 2005. – 17 с.2005

Статьи в журналах/сборниках из перечня Web of Science/Scopus
8Александров А.Г. Deformations of commutative Artinian algebras // St. Petersburg Mathematical Journal. 2023. Vol. 34, Iss. 6. С. 889-911.2023
9Александров А.Г. On a sharp lower bound for the Tjurina number of zero-dimensional complete intersections // Functional Analysis and Its Applications. 2023. Vol. 57, Iss. 1. С. 1-17.2023
10Александров А.Г. On Multivariate Picard–Fuchs Systems and Equations // Universe. 2023. Vol. 6 (J), Iss. 3. С. 437-459.2023
11Александров А.Г. On the Milnor and Tjurina numbers of Zero-Dimensional Singularities // Functional Analysis and Its Applications. 2022. Vol. 56, Iss.1. С. 1-18.2022
12Александров А.Г. The Poincaré Index and Its Applications // Universe. 2022. Vol. 8, Iss.4. С. https://www.mdpi.com/2218-1997/8/4/223/htm.2022
13Александров А.Г. The Poincaré Index on Singular Varieties // Universe. 2022. Vol. 5 (J), Iss. 3. С. 380-401.2022
14Александров А.Г. Analytic invariants of multiple points // Methods and Applications of Analysis. 2018. Vol. 25, № 4. С. 343-379.2018
15Александров А.Г. Differential Forms on Zero-Dimensional Singularities // Functional Analysis and Its Applications. 2018. Т. 52, № 4. С. 241-257.2018
16Александров А.Г. Logarithmic differential forms on Cohen–Macaulay varieties // Methods and Applications of Analysis. 2017. Vol. 24, № 1. С. 11-32.2017
17Александров А.Г. Logarithmic differential forms on varieties with singularities // Functional Analysis and Its Applications. 2017. Vol. 51, № 4. С. 245-254.2017
18Александров А.Г., Зуо Х.Ч. Zero-dimensional gradient singularities // Methods and Applications of Analysis. 2017. V. 24, № 2. С. 169-184.2017
19Александров А.Г. Differential forms on quasihomogeneous noncomplete Intersections / Functional Analysis and Its Applications. Berlin: Springer-Verlag GmbH, 2016. V. 50, № 1. С. 1-16.2016
20Александров А.Г. The Poincaré index and the Xy-characteristic of Hirzebruch // Complex Variables and Elliptic Equations. 2016. Volume 61, Issue 2. С. 166-212.2016
21Александров А.Г. The index of differential forms on complete intersections / Functional Analysis and Its Applications. Berlin: Springer-Verlag Berlin, 2015. V. 49, № 1. С. 1-14.2015
22Александров А.Г. Residues of logarithmic differential forms in complex analysis and geometry // Analysis in Theory and Applications. 2014. Т. 30, вып. 1. С. 34-50.2014
23Александров А.Г. The homological index and the De Rham complex on singular varieties // Journal of Singularities. 2014. Т. 9. С. 1-26.2014
24Александров А.Г. L’indice des champs de vecteurs sur les courbes de Cohen–Macaulay // Bulletin des Sciences Mathématiques. 2013. V. 137, № 6. С. 791–804.2013
25Александров А.Г. The multiple residue and the weight filtration on the logarithmic de Rham complex / Functional Analysis and Its Applications. Berlin: Springer-Verlag Berlin, 2013. V. 47, № 4. С. 247-260.2013
26Александров А.Г. L’indice topologique des champs de vecteurs sur les intersections complètes quasi-homogènes (à la mémoire de Henri Poincaré) // Comptes Rendus de l'Académie des Sciences. Série I. Mathématique. 2012. T. 350, № 19-20. С. 911-916.2012
27Александров А.Г. Multidimensional residue theory and the logarithmic de Rham complex // Journal of Singularities. 2012. Volume 5. С. 1-18.2012
28Александров А.Г. Holonomic D-Modules of Fuchsian and Logarithmic Types // Complex Variables and Elliptic Equations. 2011. V. 56, № 1. С. 171-191.2011
29Александров А.Г., Sekiguchi J.J. Free Deformations of Hypersurface Singularities // Journal of Mathematical Sciences. 2011. Т. 175, № 1. С. 1-16.2011
30Александров А.Г., Секигучи Ж.К. Free deformations of hypersurface singularities // Journal of Mathematical Sciences. 2011. Vol. 175, No 1. С. 1-16.2011
31Александров А.Г. Annihilators, Duality and Bilinear Forms for Zero-Dimensional Rings and Algebras // Mathematical Social Sciences. 2009. С. p. 25-36.2009
32Александров А.Г. Hodge Structure on Zero-Dimensional Complete Intersections // Mathematical Social Sciences. 2009. С. p. 7-24.2009
33Александров А.Г. Holonomic D-Modules of Fuchsian and Logarithmic Types // Complex Variables and Elliptic Equations. 2008. С. 1-34.2008
34Александров А.Г. Multi-Logarithmic Differential Forms on Complete Intersections // Journal of Siberian Federal University, Mathematics & Physics. 2008. С. 105-124.2008
35Александров А.Г. Regular Singular Holonomic Systems of Differential Equations With Given Integrals. Journal of Applied Functional Analysis // Journal of Functional Analysis. 2007. С. -.2007
36Александров А.Г. Regular Singular Holonomic Systems of Differential Equations With Given Integrals // Journal of Applied Mathematics. 2006. С. -.2006
37Александров А.Г. Gauss-Manin connexion of curve singularities // International Society for Analysis, Applications and Computation (book series). 1999. ISAAC, volume 2. С. 1-22.1999

Статьи в журналах/сборниках из перечня ВАК
38Александров А.Г. О точной оценке снизу для числа Тюриной нульмерных полных пересечений // Функциональный анализ и его приложения. 2023. Т. 57, вып. 1. С. 3-23 (1-22).2023
39Александров А.Г. Деформации коммутативных артиновых алгебр // Алгебра и Анализ. 2022. Т. 34, вып. 6. С. 1-33.2022
40Александров А.Г. О числах Милнора и Тюриной нульмерных особенностей // Функциональный анализ и его приложения. 2022. Т. 56, № 1. С. 3-25.2022
41Александров А.Г. Дифференциальные формы на нульмерных особенностях // Функциональный анализ и его приложения. 2018. Т. 52, вып. 4. С. 3-22.2018
42Александров А.Г. Логарифмические дифференциальные формы на многообразиях с особенностями // Функциональный анализ и его приложения. 2017. Т. 51, вып. 4. С. 3-15.2017
43Александров А.Г. Дифференциальные формы на квазиоднородных неполных пересечениях // Функциональный анализ и его приложения. 2016. Т. 50, вып. 1. С. 1-19.2016
44Александров А.Г. Индекс дифференциальных форм на полных пересечениях // Функциональный анализ и его приложения. 2015. Т. 49, вып. 1. С. 1-17.2015
45Александров А.Г. Кратный вычет и весовая фильтрация на логарифмическом комплексе де Рама // Функциональный анализ и его приложения. 2013. Т. 47, вып. 4. С. 1-17.2013
46Александров А.Г. Residues of Logarithmic Differential Forms // Научные ведомости Белгородского государственного университета. Серия «Математика. Физика». 2009. С. c.1-24.2009
47Александров А.Г. Stratum of Freeness for Deformations of Singularities // Научные ведомости Белгородского государственного университета. Серия «Математика. Физика». 2009. С. c.49-73.2009
48Александров А.Г., Грузман В.А. Logarithmic Differential Forms and Analysis of Complex Dynamical Systems // Научные ведомости Белгородского государственного университета. Серия «Математика. Физика». 2009. С. c.25-48.2009
49Александров А.Г. Индекс векторных полей и логарифмические дифференциальные формы // Функциональный анализ и его приложения. 2005. Т. 39, вып.4. С. 1-13.2005

Статьи в журналах/сборниках
50Александров А.Г. Свободные деформации особенностей гиперповерхностей // Современная математика и ее приложения. 2010. С. -.2010
51Александров А.Г. Holonomic Systems of Fuchsian and Logarithmic Types / Research Institute for Mathematical Sciences Kokyuroku. Kyoto: -, 2008. С. 19-43.2008
52Александров А.Г. Free Deformations of Hypersurface Singularities // System and Control Letters. 2007. № 1. С. 1-18.2007
53Александров А.Г. Holonomic Systems of Differential Equations of Fuchsian and Logarithmic Types / Surikaisekikenkyusho Kokyuroku. -: -, 2007. С. -.2007

Главы в книгах
54Александров А.Г. Duality, derivations and deformations of zero-dimensional singularities / Zero-dimensional schemes (Proceedings of the International conference held in Ravello, Italy). Berlin - New York: Walter de Gruyter GmbH, 1994. С. 11-31.1994
55Александров А.Г. Nonisolated hypersurface singularities / Theory of singularities and its applications (Advances in Soviet Mathematics). Providence, USA: American Mathematical Society, 1990. С. 211-246.1990

Пленарные доклады
56Александров А.Г. Logarithmic differential forms on singular varieties / Proceedings of the International Conference «Multidimensional Residues and Tropical Geometry» (Sochi, 2021). Сочи: Sirius University of Science and Technology, Sirius Mathematics Center., 2021. С. 8-8.2021
57Александров А.Г. The Poincare-de Rham complex and the cotangent homology of zero-dimensional schemes / Gerichtsverfahren des Oberseminars Algebraische Geometrie (Mannheim, Germany, 2018). Mannheim: Universität Mannheim, 2018. B.1. С. 1-1.2018
58Александров А.Г. Analytic invariants of multiple points / Proceedings of the International Conference on Singularity Theory and Dynamical Systems (ICSTDS'2017, Sanya, China). Beijing: Tsinghua University, 2017. Т. 1. С. 1.2017
59Александров А.Г. Cohomology of varieties and logarithmic forms / Proceedings of International Conference «Algebraic geometry with fancy coefficients» (Caen, 2017). Caen, Normandie: Université de Caen, Normandie, France, 2017. Т. 1. С. 1-1.2017
60Александров А.Г. L'indice logarithmique et le residu / Proccedings of the SINGSTAR Conference 2017: Index theory and Singular Structures (Toulouse, France). Toulouse, France: Mathematics institute of Toulouse, 2017. Т.1. С. 1.2017
61Александров А.Г. Logarithmic de Rham complex on singular varieties / Gerichtsverfahren des Oberseminars Algebraische Geometrie (Mannheim, Germany, 2017). Mannheim: Universität Mannheim, 2017. Т. 1. С. 1-1.2017
62Александров А.Г. Logarithmic differential forms on singular varieties / Proceedings of the Internatonal Conference "Panorama on Singular Varieties" (Sevilla, Spain, 2017). Sevilla: Instituto de Matemáticas de la Universidad de Sevilla, 2017. Т. 1. С. 1-1.2017
63Александров А.Г. Zero-dimensional singularities / Proceedings of Tsinghua University (Beijing, P.R.China, 2017). Beijing: Tsinghua University, 2017. С. 1-1.2017
64Александров А.Г. Differential forms on singular varieties: applications / Proceedings of Tsinghua University (Beijing, P.R.China, 2016). Beijing, P.R.China: Tsinghua University, 2016. С. 2.2016
65Александров А.Г. Differential forms on singular varieties / Proceedings of Tsinghua University (Beijing, P.R.China, 2016). Beijing, P.R.China: Tsinghua University, 2016. С. 1.2016
66Александров А.Г. Differential forms on noncomplete intersections / Gerichtsverfahren des Oberseminars Algebraische Geometrie (Mannheim, Germany, 2015). Mannheim: Universität Mannheim, 2015. B.1. С. 1.2015
67Александров А.Г. Differential forms on non-complete intersections / Proceedings of International Conference on Singularity Theory (ICST'2015, Sanya, P.R.China). Beijing, P.R.China: Tsinghua University, 2015. № 1. С. 1.2015
68Александров А.Г. Syzygies and differential forms on singular varieties / Proceedings of International Conference «Syzygies in Algebra and Geometry 2015» (Haeundae, Busan, KOREA). Busan, South Korea: Korea Advanced Institute of Science and Technology (KAIST), 2015. № 1. С. 2.2015
69Александров А.Г. The Poincare index and residue / Proceedings of International Conference «Complex Analysis and Differential Equations» (Saint Petersburg, Russia). Saint Petersburg: Siberian Federal University, 2015. С. 10.2015
70Александров А.Г. Differential forms and homological calculus / Proceedings of the International Conference on Finite or Infinite Dimensional Complex Analysis and Applications (Gyeongju, Korea, 2014). Gyeongju, Korea: Dongguk University, 2014. 1. С. 1-2.2014
71Александров А.Г. Holonomic D-modules of logarithmic type / Procedings of the International Conference on Complex Geometry, Analysis and Foliations (CGAF'2014, Trieste, Italy). Trieste: International Center of theoretical Physics, 2014. 1. С. 2.2014
72Александров А.Г. Index of vector fields and differential forms / Gerichtsverfahren des Oberseminars Algebraische Geometrie (Mannheim, Germany, 2014). Mannheim: Universität Mannheim, 2014. Т. 1. С. 1.2014
73Александров А.Г. Index Poincare of differential forms / Proceedings of the Workshop on Real geometry and singularities (Rennes, 2014). Rennes, France: Rennes University, 2014. С. 1.2014
74Александров А.Г. Résidus de formes différentielles logarithmiques et l'indice homologique / Résumés de Rencontre «Géométrie Algébrique et Géométrie Complexe» (GAGC'2014, Marseille). Marseille: CIRM, France, 2014. 1. С. 1.2014
75Александров А.Г. Computing the index of vector fields at Cohen-Macaulay curves / Proceedings of the International Conference "Effective methods in algebraic geometry " (Frankfurt, Germany, 2013). Frankfurt: Goethe Universitaet, 2013. С. 31.2013
76Александров А.Г. Contracted de Rham complex on singular varieties / Gerichtsverfahren des Oberseminars Algebraische Geometrie (Mannheim, Germany, 2013). Mannheim: Universität Mannheim, 2013. С. 1.2013
77Александров А.Г. Holonomic D-modules of logarithmic type / Proceedings of the International Conference «Recent Trends in Algebraic Analysis» (Padua, Italy, 2013). Padua, Italy: DIPARTIMENTO DI MATEMATICA - UNIVERSITA DI PADOVA, 2013. С. 1.2013
78Александров А.Г. Residues of logarithmic differential forms in complex analysis and geometry / Proceedings of the 21th International Conference on Finite or Infinite Dimensional Complex Analysis and Applications (ICFIDCAA'2013, Nanjing，China). Nanjing: Nanjing University, 2013. С. 1.2013
79Александров А.Г. Index of vector fields on singular varieties / Proceeding of the International seminar on complex analysis (Saitama, Japan, 2012). Saitama, Japan: Saitama University, 2012. С. 1.2012
80Александров А.Г. Locus and stratum of freeness for deformations of hypersurface singularities / Proceedings of the International Workshop on Free Divisors and Differential Equations (Tokyo, Japan, 2012). Tokyo: Tokyo University of Agriculture and Technology, 2012. С. 1-1.2012
81Александров А.Г. Logarithmic de Rham complex on varieties / Gerichtsverfahren des Oberseminars Algebraische Geometrie (Mannheim, Germany, 2012). Mannheim: Universität Mannheim, 2012. С. 1.2012
82Александров А.Г. Multidimensional residue theory and the logarithmic de Rham complex / Proceedings of the International Workshop on Free Divisors and Differential Equations (Tokyo, Japan, 2012). Tokyo: Tokyo University of Agriculture and Technology, 2012. С. 1.2012
83Александров А.Г. Multi-logarithmic differential forms and arrangements / Proccedings of the International School on hyperplane arrangements and related topics (Pau, France, 2012). Pau, France: Pau University, 2012. С. 3.2012
84Александров А.Г. Multi-logarithmic differential forms on Cohen-Macaulay varieties / Proceedings of the International Colloquium on Complex Analysis and Geometry (Tsukuba, Japan, 2012). Tsukuba, Japan: University of Tsukuba, Faculty of Pure and Applied Sciences, 2012. С. 1.2012
85Александров А.Г. Residues of meromorphic differential forms / Proceeding of the International Seminar on Geometric Complex Analysis (Tokyo, Japan, 2012). Tokyo: Graduated School of Mathematical sciences, University of Tokyo, 2012. С. 1.2012
86Александров А.Г. Индекс векторных полей на многообразиях с особенностями / Тезисы докладов Международной конференции «Анализ и особенности» (Москва, 2012). М.: МИАН, 2012. С. 26-28 http://arnold75.mi.ras.ru/Abstracts.pdf.2012
87Александров А.Г. Locus and stratum of freeness for deformations of hypersurface singularities / Proceedings of the International Conference "Effective methods in algebraic geometry" (MEGA-2011, Stockholm, Sweden). Stockholm: Stockholm University, 2011. С. 2.2011
88Александров А.Г. Logarithmic and torsion differential forms in the theory of singularities / Proceedings of the International Conference "Algebraic versus Analytic Geometry" (LAG-2011, Vienna, Austria). Vienna: Erwin Schrödinger International Institute for Mathematical Physics (ESI), 2011. С. 1-4.2011
89Александров А.Г. Residues of logarithmic diff erential forms / Proceedings of the International Chern Centennial Conference (Tianjin, China, 2011). Tianjin: Nankai University, 2011. С. 14.2011
90Александров А.Г. Residue theory and logarithmic de Rham complex / Proceedings of the Singularity Theory Conference (STC-2011, Hefei, P.R.China). Hefei, China: University of Science and Technology of China, 2011. С. 1-2.2011
91Александров А.Г. The homological index and vector fields on singular varieties / Proceedings of the International Conference "Algebraic Methods in Geometry: Commutative and Homological Algebra in Foliations and Singularities" (CIMAT-2011, Guanajuato, Mexico). Guanajuato: Centro de Investigación en Matemáticas (CIMAT), 2011. С. 1-2.2011
92Александров А.Г. New Trends in the Theory of Logarithmic Differential Forms / . -: -, 2010. С. -.2010
93Александров А.Г. Theory of Logarithmic Differential Forms and Its Applications / Proceedings of the International Conference on Finite or Infinite Dimensional Complex Analysis and Applications (Macau, China, 2010). Macau: University of Macau, 2010. С. 1.2010
94Александров А.Г. Logarithmic Differential Forms and Their Residues / . -: -, 2009. С. 2-5.2009
95Александров А.Г. Theory of Logarithmic Differential Forms and Its Applications / . -: -, 2009. С. 13-21.2009
96Александров А.Г. Enumeration Theory of Saito Free Divisors / . Moscow: -, 2008. С. 5-12.2008

Пленарные доклады и доклады из перечня Web of Science/Scopus
97Александров А.Г. Logarithmic differential forms on singular varieties / Proceedings of the International Congress of Mathematicians (ICM-2018, Rio de Janeiro, Brazil). Rio de Janeiro: World Scientific Publishing, 2018. Vol. 1. С. 95-95.2018
98Александров А.Г. Logarithmic differential forms on singular varieties / Proceedings of the International Congress of Mathematicians (ICM-2018, Rio de Janeiro, Brazil). Singapore: World Scientific Publishing Co Pte Ltd, 2018. Т. 2. С. 565-580.2018
99Александров А.Г. The weight filtration on the logarithmic de Rham complex / Proceedings of the International Congress of Mathematicians (ICM, Seoul, South Korea, 2014). Seoul: SEOUL ICM 2014 Organizing Committee, 2014. С. 55.2014
100Александров А.Г. The weight filtration on the logarithmic de Rham complex / Proceedings of the International Congress of Mathematicians (ICM, Seoul, South Korea, 2014). Сеул: ICM-2014, 2014. 1. С. 55.2014
101Александров А.Г. Residues of Logarithmic Differential Forms / Book of Abstracts of the International Congress of Mathematicians (ICM’2010, Hyderabad, India). Hyderabad, India: Hindustan Book Agency, 2010. С. 106-107.2010

Доклады
102Александров А.Г. The index of vector fi elds and Poincaré residue / Proceedings of the International conference "Dynamical Systems: 100 years after Poincaré" (Gijón, Spain, 2012). Gijón, Spain: Gijón University, 2012. С. 21.2012
103Александров А.Г. Free Deformations of Hypersurface Singularities / . -: -, 2010. С. p.230-237.2010
104Александров А.Г. Hodge Structure on the Logarithmic De Rham Complex / . -: -, 2010. С. -.2010
105Александров А.Г. Differential Calculus on Singular Varieties / . Madrid: -, 2008. С. 45-49.2008
106Александров А.Г. Logarithmic Index of Vector Fields / . Mirmare - Trieste: -, 2008. С. 3-15.2008
107Александров А.Г. Theory of Logarithmic Differential Forms / . Buenos Aires: -, 2008. С. 24-32.2008
108Александров А.Г., Грузман В.А. Control of Evolutionary Processes, Topological Index and Deformation Theory / . -: -, 2007. С. p. 2-11.2007

Тезисы докладов
109Александров А.Г. Analytic invariants of multiple points / Proceedings of the International Conference on Singularity Theory and Dynamical Systems (ICSTDS'2017, Sanya, China). Beijing: Tsinghua University, 2017. С. http://ymsc.tsinghua.edu.cn/sanya/2017/Mather75/tiltles%20and%20abstract.pdf.2017
110Александров А.Г. Differential forms on non-complete intersections / Proceedings of International Conference on Singularity Theory (ICST'2015, Sanya, P.R.China). Beijing, P.R.China: Tsinghua University, 2015. № 1. С. 1-2.2015
111Александров А.Г. Syzygies and differential forms on singular varieties / Proceedings of International Conference «Syzygies in Algebra and Geometry 2015» (Haeundae, Busan, KOREA). Busan, South Korea: Korea Advanced Institute of Science and Technology (KAIST), 2015. № 1. С. 2.2015
112Александров А.Г. The Poincaré index and residue / Proceedings of International Conference «Complex Analysis and Differential Equations» (Saint Petersburg, Russia). Saint-Petersburg: Siberian Federal University, 2015. С. 10-10.2015
113Александров А.Г. Differential forms and homological calculus / Proceedings of the 22nd International Conference on Finite or In nite Dimensional Complex Analysis and Applications (ICFIDCAA'2014, Gyeongju, Republic of Korea). Gyeongju, Korea: Dongguk University, 2014. 1. С. 38.2014
114Александров А.Г. Computing the index of vector fields at Cohen-Macaulay curves / Proceedings of the International Conference "Effective methods in algebraic geometry " (Frankfurt, Germany, 2013). Frankfurt: Goethe Universitaet, 2013. 1. С. 31.2013
115Александров А.Г. Holonomic D-modules of logarithmic type / Proceedings of the International Conference «Recent Trends in Algebraic Analysis» (Padua, Italy, 2013). Padua, Italy: DIPARTIMENTO DI MATEMATICA - UNIVERSITA DI PADOVA, 2013. 1. С. 1.2013
116Александров А.Г. Residues of logarithmic differential forms in complex analysis and geometry / Proceedings of the 21th International Conference on Finite or Infinite Dimensional Complex Analysis and Applications (ICFIDCAA'2013, Nanjing，China). Nanjing: Nanjing University, 2013. С. 14.2013
117Александров А.Г. Индекс векторных полей на многообразиях с особенностями / Тезисы докладов Международной конференции «Анализ и особенности» (Москва, 2012). М.: МИАН, 2012. С. 26-28.2012
118Александров А.Г. Residues of Logarithmic Differential Forms / . -: -, 2010. С. -.2010
119Александров А.Г. Current and Future Trends in the Theory of Logarithmic Differential Forms / . -: -, 2007. С. -.2007
120Александров А.Г. Logarithmic Differential Forms on Complete Intersections / . -: -, 2007. С. -.2007
121Александров А.Г. Aleksandrov A.G. Duality and deformations of artinian algebras / Тезисы докладов по теории колец, алгебр и модулей. Барнаул: Институт математики СО АН СССР (Новосибирск), 1991. Т. 1. С. 134.1991