Baushev, V. S.; Vilyunov, V. N.; Timokhin, A. M. Stability of stationary solutions of the system of equations of the combustion theory. (English. Russian original) Zbl 0546.76129 J. Appl. Math. Mech. 44, 65-69 (1981); translation from Prikl. Mat. Mekh. 44, 96-103 (1980). MSC: 76V05 76E99 80A25 PDFBibTeX XMLCite \textit{V. S. Baushev} et al., J. Appl. Math. Mech. 44, 65--69 (1981; Zbl 0546.76129); translation from Prikl. Mat. Mekh. 44, 96--103 (1980) Full Text: DOI
Naylor, Arch W.; Sell, George R. Linear operator theory in engineering and science. (Teória lineárnych operátorov v technických a prirodných vedách). Transl. from the English by J. Dravecký and P. Mederly. (Slovak) Zbl 0538.47001 Bratislava: Alfa. Vydavatel’stvo Technickej a Ekonomickey Literatúry. 629 p. (1981). MSC: 47-01 47B25 47A05 47A10 47H10 93C05 34G10 PDFBibTeX XML
Bachman, George; Narici, Lawrence Functional analysis. (Análisis funcional). Transl. from the English by Eva Sánchez Mañes. (Spanish) Zbl 0534.46001 Serie de Matemática. Madrid: Editorial Tecnos. 591 p. (1981). MSC: 46-01 47-01 46C05 47B15 46A30 46B03 46B10 47A05 47B25 PDFBibTeX XML
Yafaev, D. R. Faster-than-power decrease in time of solutions of the Schrödinger equation. (English. Russian original) Zbl 0534.35029 Sov. Phys., Dokl. 26, 582-584 (1981); translation from Dokl. Akad. Nauk SSSR 258, 850-853 (1981). Reviewer: R.Salvi MSC: 35J10 35B40 47B25 35B05 PDFBibTeX XMLCite \textit{D. R. Yafaev}, Sov. Phys., Dokl. 26, 582--584 (1981; Zbl 0534.35029); translation from Dokl. Akad. Nauk SSSR 258, 850--853 (1981)
Pasenchuk, A. Eh. On a class of two-dimensional convolution operators with degenerate symbol. (Russian) Zbl 0532.47036 Mathematical analysis and its applications, Collect. Artic., Rostov 1981, 105-112 (1981). Reviewer: L.Hacia MSC: 47Gxx 47A05 45P05 44A35 PDFBibTeX XML
Kirsch, Werner Über Spektren stochastischer Schrödingeroperatoren. (German) Zbl 0531.35066 Abteilung für Mathematik an der Ruhr-Universität Bochum. 135 S. (1981). Reviewer: H.Lange MSC: 35Q99 82D25 35P05 60H15 35J10 47A10 47F05 47B25 PDFBibTeX XML
Inoue, Atsushi A Radon-Nikodym theorem for positive invariant sesquilinear forms on *- algebras. (English) Zbl 0529.47037 Bull. Inst. Adv. Res. Fukuoka Univ. 50, Nat. Sci. 9, 15-27 (1981). MSC: 47L60 46L51 46L53 46L54 PDFBibTeX XMLCite \textit{A. Inoue}, Bull. Inst. Adv. Res. Fukuoka Univ., Nat. Sci. 50(9), 15--27 (1981; Zbl 0529.47037)
Abramov, Yu. Sh. On the solvability of extremal problems generated by operator pencils. (Russian) Zbl 0529.47006 Optimizatsiya 27(44), 143-152 (1981). MSC: 47A56 49J27 47B25 PDFBibTeX XMLCite \textit{Yu. Sh. Abramov}, Optimizatsiya 27(44), 143--152 (1981; Zbl 0529.47006)
Gali, I. M.; El-Saify, H. A. Optimal control of a system governed by a self-adjoint elliptic operator with an infinite number of variables. (English) Zbl 0528.49013 Functional differential systems and related topics, Proc. 2nd int. Conf., Blazejewko/Pol. 1981, 126-133 (1981). MSC: 49K20 35J15 47B25 47F05 93C20 35B37 PDFBibTeX XML
Kasymov, E. A. Sufficient conditions for the essential selfadjointness of an operator of a high order. (Russian) Zbl 0523.34056 Differential equations and their applications, Collect. Artic., Alma-Ata 1981, 110-122 (1981). MSC: 34G10 47B25 PDFBibTeX XML
Schmuedgen, Konrad On domains of powers of closed symmetric operators. (English) Zbl 0522.47018 Prepr. Ser., Aarhus Univ. 1981/82, No. 15, 53 p. (1981). MSC: 47B25 PDFBibTeX XML
Demichele, Cataldo; Matteo, Alba On the index of a second order elliptic operator with singular coefficients in unbounded domains. (Italian) Zbl 0522.35033 Rend. Accad. Sci. Fis. Mat., IV. Ser., Napoli 48, 129-143 (1981). MSC: 35J15 35R20 47A53 PDFBibTeX XMLCite \textit{C. Demichele} and \textit{A. Matteo}, Rend. Accad. Sci. Fis. Mat., IV. Ser., Napoli 48, 129--143 (1981; Zbl 0522.35033)
Lapidus, Michel L. The problem of the Trotter-Lie formula for unitary groups of operators. (English) Zbl 0519.47025 Publ. Math. Univ. Pieere Marie Curie 46, Semin. Initiation Anal. 20e Annee: 1980/1981, Expose No. 17, 45 p. (1981). MSC: 47D03 81S40 47L90 35J10 PDFBibTeX XML
Antoine, J.-P. Algebras of unbounded operators and partial inner product spaces. (English) Zbl 0517.47027 Mitt. Math. Ges. DDR 1981, No. 2-4, 38-44 (1981). MSC: 47L60 47L90 46C99 PDFBibTeX XMLCite \textit{J. P. Antoine}, Mitt. Math. Ges. DDR 1981, No. 2--4, 38--44 (1981; Zbl 0517.47027)
Sloan, Alan D. The strong convergence of Schrödinger propagators. (English) Zbl 0517.35009 Trans. Am. Math. Soc. 264, 557-570 (1981). MSC: 35B20 35J10 47D03 47B25 81Q05 PDFBibTeX XMLCite \textit{A. D. Sloan}, Trans. Am. Math. Soc. 264, 557--570 (1981; Zbl 0517.35009) Full Text: DOI
Fitzgibbon, William E. Integrodifferential equations in Banach space. (English) Zbl 0515.45019 Integral and functional differential equations, Lect. Notes Pure Appl. Math. 67, 173-184 (1981). MSC: 45N05 45J05 PDFBibTeX XML
Maeda, Mikio Essential self-adjointness of Schrödinger operators with potentials singular along affine subspaces. (English) Zbl 0513.35025 Hiroshima Math. J. 11, 275-283 (1981). MSC: 35J10 47A55 47B25 PDFBibTeX XMLCite \textit{M. Maeda}, Hiroshima Math. J. 11, 275--283 (1981; Zbl 0513.35025)
Korotkov, V. B. Characteristic properties of unbounded general integral operators. (English. Russian original) Zbl 0508.47033 Sib. Math. J. 22, 381-386 (1982); translation from Sib. Mat. Zh. 22, 67-73 (1981). MSC: 47B38 47Gxx 47B10 PDFBibTeX XMLCite \textit{V. B. Korotkov}, Sib. Math. J. 22, 381--386 (1981; Zbl 0508.47033); translation from Sib. Mat. Zh. 22, 67--73 (1981) Full Text: DOI
Gol’dshtejn, B. G. Central limit theorem for a non commutative stationary random process. (Russian) Zbl 0506.46049 Izv. Akad. Nauk UzSSR, Ser. Fiz.-Mat. Nauk 1981, No. 6, 3-8 (1981). MSC: 46L51 46L53 46L54 46L55 60F05 PDFBibTeX XMLCite \textit{B. G. Gol'dshtejn}, Izv. Akad. Nauk UzSSR, Ser. Fiz.-Mat. Nauk 1981, No. 6, 3--8 (1981; Zbl 0506.46049)
Fitzgibbon, W. E. Abstract hyperbolic integrodifferential equations. (English) Zbl 0506.45016 J. Math. Anal. Appl. 84, 299-310 (1981). MSC: 45N05 45J05 74Hxx PDFBibTeX XMLCite \textit{W. E. Fitzgibbon}, J. Math. Anal. Appl. 84, 299--310 (1981; Zbl 0506.45016) Full Text: DOI
Krejn, M. G.; Yavryan, V. A. The spectral shift function arising from perturbations of a positive operator. (Russian) Zbl 0505.47016 J. Oper. Theory 6, 155-191 (1981). MSC: 47B25 47A55 47B10 47B06 PDFBibTeX XMLCite \textit{M. G. Krejn} and \textit{V. A. Yavryan}, J. Oper. Theory 6, 155--191 (1981; Zbl 0505.47016)
Szafraniec, F. H. Boundedness of the shift operator related to positive definite forms: An application to moment problems. (English) Zbl 0504.47030 Ark. Mat. 19, 251-259 (1981). MSC: 47B37 30E05 47B25 43A35 47B15 PDFBibTeX XMLCite \textit{F. H. Szafraniec}, Ark. Mat. 19, 251--259 (1981; Zbl 0504.47030) Full Text: DOI
Grenkova, L. N. On the essential self-adjointness of the Schrödinger operator with random potential. (English) Zbl 0502.47024 Russ. Math. Surv. 36, No. 6, 185-186 (1981). MSC: 47F05 47B25 60H25 81Q10 PDFBibTeX XMLCite \textit{L. N. Grenkova}, Russ. Math. Surv. 36, No. 6, 185--186 (1981; Zbl 0502.47024) Full Text: DOI
Berezanskij, Yu. M.; Samojlenko, V. G. On the self-adjointness of differential operators with finitely or infinitely many variables, and evolution equations. (English) Zbl 0502.47023 Russ. Math. Surv. 36, No. 5, 1-62 (1981). MSC: 47F05 47B25 46F25 PDFBibTeX XMLCite \textit{Yu. M. Berezanskij} and \textit{V. G. Samojlenko}, Russ. Math. Surv. 36, No. 5, 1--62 (1981; Zbl 0502.47023) Full Text: DOI
Shubin, M. A. Spectrum and its distribution function for a transversally elliptic operator. (English) Zbl 0502.35068 Funct. Anal. Appl. 15, 74-76 (1981). MSC: 35P20 35J99 47B25 PDFBibTeX XMLCite \textit{M. A. Shubin}, Funct. Anal. Appl. 15, 74--76 (1981; Zbl 0502.35068) Full Text: DOI
Herrera, Ismael An algebraic theory of boundary value problems. (English) Zbl 0501.73010 Kinam 3, 161-229 (1981). MSC: 74A99 47F05 47B25 49S05 65Z05 74S30 76A99 PDFBibTeX XMLCite \textit{I. Herrera}, Kinam 3, 161--229 (1981; Zbl 0501.73010)
Vajnerman, L. I. On maximal dissipativeness of abstract differential operators of hyperbolic type. (Russian) Zbl 0501.47013 Differ. Uravn. 17, 1678-1681 (1981). MSC: 47B44 47F05 47E05 47B25 PDFBibTeX XMLCite \textit{L. I. Vajnerman}, Differ. Uravn. 17, 1678--1681 (1981; Zbl 0501.47013)
Raitums, Uldis E. On the G-convergence of quasilinear elliptic operators with unbounded coefficients. (English. Russian original) Zbl 0501.35033 Sov. Math., Dokl. 24, 472-476 (1981); translation from Dokl. Akad. Nauk SSSR 261, 30-34 (1981). MSC: 35J65 49J45 35B20 35J60 35R20 47F05 47J05 PDFBibTeX XMLCite \textit{U. E. Raitums}, Sov. Math., Dokl. 24, 472--476 (1981; Zbl 0501.35033); translation from Dokl. Akad. Nauk SSSR 261, 30--34 (1981)
Savchuk, V. F. Convergence of a certain solution method for linear equations in Hilbert space. (Russian) Zbl 0499.65033 Izv. Akad. Nauk BSSR, Ser. Fiz.-Mat. Nauk 1981, No. 4, 53-58 (1981). MSC: 65J10 47A50 PDFBibTeX XMLCite \textit{V. F. Savchuk}, Izv. Akad. Nauk BSSR, Ser. Fiz.-Mat. Nauk 1981, No. 4, 53--58 (1981; Zbl 0499.65033)
Boĭmatov, K. Kh. The spectral asymptotics of differential and pseudo-differential operators. I. (Russian) Zbl 0498.35065 Tr. Semin. Im. I. G. Petrovskogo 7, 50-100 (1981). MSC: 35P20 35S05 47B25 PDFBibTeX XMLCite \textit{K. Kh. Boĭmatov}, Tr. Semin. Im. I. G. Petrovskogo 7, 50--100 (1981; Zbl 0498.35065)
Strakhov, V. N. The choice of the constant in A. N. Tikhonov’s rule for specifying the regularization parameter in the solution of linear conditionally well- posed problems. (English. Russian original) Zbl 0495.65024 U.S.S.R. Comput. Math. Math. Phys. 21, No. 5, 240-243 (1981); translation from Zh. Vychisl. Mat. Mat. Fiz. 21, 1315-1318 (1981). MSC: 65J10 47A50 PDFBibTeX XMLCite \textit{V. N. Strakhov}, U.S.S.R. Comput. Math. Math. Phys. 21, No. 5, 240--243 (1981; Zbl 0495.65024); translation from Zh. Vychisl. Mat. Mat. Fiz. 21, 1315--1318 (1981) Full Text: DOI
Ashurov, R. R. Divergence of spectral expansions connected with elliptic operators. (English. Russian original) Zbl 0495.35063 Math. Notes 30, 599-605 (1982); translation from Mat. Zametki 30, 535-542 (1981). MSC: 35P05 35J30 47B25 47B40 47A70 PDFBibTeX XMLCite \textit{R. R. Ashurov}, Math. Notes 30, 599--605 (1981; Zbl 0495.35063); translation from Mat. Zametki 30, 535--542 (1981) Full Text: DOI
Inoue, Atsushi; Ota, Schoichi; Tomiyama, Jun Derivations of operator algebras into spaces of unbounded operators. (English) Zbl 0493.47022 Pac. J. Math. 96, 389-404 (1981). MSC: 47L60 47B47 46L10 46L05 PDFBibTeX XMLCite \textit{A. Inoue} et al., Pac. J. Math. 96, 389--404 (1981; Zbl 0493.47022) Full Text: DOI
Cycon, Hans L. On the form sum and the Friedrichs extension of Schrödinger operators with singular potentials. (English) Zbl 0489.47030 J. Oper. Theory 6, 75-86 (1981). MSC: 47F05 35J10 47B25 81Q10 PDFBibTeX XMLCite \textit{H. L. Cycon}, J. Oper. Theory 6, 75--86 (1981; Zbl 0489.47030)
Mourre, E. Absence of singular continuous spectrum for certain self-adjoint operators. (English) Zbl 0489.47010 Commun. Math. Phys. 78, 391-408 (1981). MSC: 47B25 47A10 35P05 47D03 47F05 47Gxx PDFBibTeX XMLCite \textit{E. Mourre}, Commun. Math. Phys. 78, 391--408 (1981; Zbl 0489.47010) Full Text: DOI
Klecha, Tadeusz Analytical dependence of velocity and amplitude of a stress surface wave on the wave number. (English) Zbl 0488.73024 Bull. Acad. Pol. Sci., Sér. Sci. Tech. 29, 231-236 (1981). MSC: 74J15 47A55 46N99 74E05 47B25 PDFBibTeX XMLCite \textit{T. Klecha}, Bull. Acad. Pol. Sci., Sér. Sci. Tech. 29, 231--236 (1981; Zbl 0488.73024)
Avron, Joseph E.; Simon, Barry Transient and recurrent spectrum. (English) Zbl 0488.47021 J. Funct. Anal. 43, 1-31 (1981). MSC: 47F05 47A10 47B25 PDFBibTeX XMLCite \textit{J. E. Avron} and \textit{B. Simon}, J. Funct. Anal. 43, 1--31 (1981; Zbl 0488.47021) Full Text: DOI
Chueshov, I. D. On essential domains of definition of the Schrödinger operator with high-singular potential of dual interaction. (Russian) Zbl 0487.47025 Teor. Funkts. Funkts. Anal. Prilozh. 36, 111-124 (1981). MSC: 47B25 47A40 47A55 81U10 PDFBibTeX XMLCite \textit{I. D. Chueshov}, Teor. Funkts. Funkts. Anal. Prilozh. 36, 111--124 (1981; Zbl 0487.47025)
Nagamachi, Shigeaki The theory of vector valued Fourier hyperfunctions of mixed type. I. (English) Zbl 0487.46024 Publ. Res. Inst. Math. Sci. 17, 25-63 (1981). MSC: 46F15 46M20 PDFBibTeX XMLCite \textit{S. Nagamachi}, Publ. Res. Inst. Math. Sci. 17, 25--63 (1981; Zbl 0487.46024) Full Text: DOI
Donato, Patrizia; Giachetti, Daniela Proprieta dello spettro di una classe di operatori lineari ellittici in domini non limitati ed applicazioni a problemi semilineari. (Italian) Zbl 0486.35059 Ann. Univ. Ferrara, N. Ser., Sez. VII 27, 43-69 (1981). MSC: 35P05 35J20 35J60 46E35 PDFBibTeX XMLCite \textit{P. Donato} and \textit{D. Giachetti}, Ann. Univ. Ferrara, Nuova Ser., Sez. VII 27, 43--69 (1981; Zbl 0486.35059)
Strakhov, V. N.; Valyashko, G. M. Adaptive regularization algorithms for linear ill-posed problems. (English. Russian original) Zbl 0485.65039 Sov. Math., Dokl. 24, 120-122 (1981); translation from Dokl. Akad. Nauk SSSR 259, 546-548 (1981). MSC: 65J10 35R25 65M30 93C40 PDFBibTeX XMLCite \textit{V. N. Strakhov} and \textit{G. M. Valyashko}, Sov. Math., Dokl. 24, 120--122 (1981; Zbl 0485.65039); translation from Dokl. Akad. Nauk SSSR 259, 546--548 (1981)
Grenkova, L. N. On the essential self-adjointness of the Schrödinger operator with random potential. (Russian) Zbl 0485.47032 Usp. Mat. Nauk 36, No. 6(222), 211-212 (1981). MSC: 47F05 60H25 47B25 81Q10 PDFBibTeX XMLCite \textit{L. N. Grenkova}, Usp. Mat. Nauk 36, No. 6(222), 211--212 (1981; Zbl 0485.47032)
Berezanskij, Yu. M.; Samojlenko, V. G. Self-adjointness of differential operators with a finite and infinite number of variables and evolutionary equations. (Russian) Zbl 0485.47031 Usp. Mat. Nauk 36, No. 5(221), 3-56 (1981). MSC: 47F05 47B25 46F25 PDFBibTeX XMLCite \textit{Yu. M. Berezanskij} and \textit{V. G. Samojlenko}, Usp. Mat. Nauk 36, No. 5(221), 3--56 (1981; Zbl 0485.47031)
Avron, Joseph; Simon, Barry Almost periodic Schrödinger operators. I: Limit periodic potentials. (English) Zbl 0484.35069 Commun. Math. Phys. 82, 101-120 (1981). MSC: 35P25 35J10 81Q15 47A40 47B25 35B15 PDFBibTeX XMLCite \textit{J. Avron} and \textit{B. Simon}, Commun. Math. Phys. 82, 101--120 (1981; Zbl 0484.35069) Full Text: DOI
Dushdurov, M. G. Asymptotics of the number of eigenvalues of a certain partial operator equation. (Russian) Zbl 0484.35063 Izv. Akad. Nauk Az. SSR, Ser. Fiz.- Tekh. Mat. Nauk 1981, No. 4, 50-54 (1981). MSC: 35P20 47B25 PDFBibTeX XMLCite \textit{M. G. Dushdurov}, Izv. Akad. Nauk Az. SSR, Ser. Fiz.-Tekh. Mat. Nauk 1981, No. 4, 50--54 (1981; Zbl 0484.35063)
Kato, Tosio Remarks on the selfadjointness and related problems for differential operators. (English) Zbl 0484.35027 Spectral theory of differential operators, Proc. Conf., Birmingham/ USA 1981, North-Holland Math. Stud. 55, 253-266 (1981). MSC: 35J15 47B25 35J10 PDFBibTeX XML
Lassner, Gerd Topological algebras and their applications in quantum statistics. (English) Zbl 0483.47027 Wiss. Z., Karl-Marx-Univ. Leipz., Math.-Naturwiss. Reihe 30, 572-595 (1981). MSC: 47L60 47L90 46K05 82B10 PDFBibTeX XMLCite \textit{G. Lassner}, Wiss. Z., Karl-Marx-Univ. Leipz., Math.-Naturwiss. Reihe 30, 572--595 (1981; Zbl 0483.47027)
Combes, J. M.; Weder, R. New criterion for existence and completeness of wave operators and applications to scattering by unbounded obstacles. (English) Zbl 0483.35068 Commun. Partial Differ. Equations 6, 1179-1223 (1981). MSC: 35P25 35J05 74J20 PDFBibTeX XMLCite \textit{J. M. Combes} and \textit{R. Weder}, Commun. Partial Differ. Equations 6, 1179--1223 (1981; Zbl 0483.35068) Full Text: DOI
Vol’pert, V. A. On the spectrum of an elliptic operator in an unbounded cylindrical domain. (Russian) Zbl 0483.35058 Dokl. Akad. Nauk Ukr. SSR, Ser. A 1981, No. 9, 9-12 (1981). MSC: 35P05 35J15 47A53 47A10 PDFBibTeX XMLCite \textit{V. A. Vol'pert}, Dokl. Akad. Nauk Ukr. SSR, Ser. A 1981, No. 9, 9--12 (1981; Zbl 0483.35058)
Baxley, John V. Some partial differential operators with discrete spectra. (English) Zbl 0482.35062 Spectral theory of differential operators, Proc. Conf., Birmingham/USA 1981, North-Holland Math. Stud. 55, 53-59 (1981). MSC: 35P05 35J25 47B25 PDFBibTeX XML
Jørgensen, Palle E. T. Point-spectrum of semibounded operator extensions. (English) Zbl 0479.47022 Proc. Am. Math. Soc. 81, 565-569 (1981). MSC: 47B25 47A20 81Q10 47L60 PDFBibTeX XMLCite \textit{P. E. T. Jørgensen}, Proc. Am. Math. Soc. 81, 565--569 (1981; Zbl 0479.47022) Full Text: DOI
Jørgensen, Palle E. T. The integrability problem for infinite-dimensional representations of finite-dimensional Lie algebras. (English) Zbl 0477.58009 Prepr. Ser., Aarhus Univ. 1981/82, No. 9, 32 p. (1981). MSC: 58B25 57S20 47L60 47D03 47L90 PDFBibTeX XML
Fitzgibbon, W. E. Strongly damped quasilinear evolution equations. (English) Zbl 0476.35040 J. Math. Anal. Appl. 79, 536-550 (1981). MSC: 35G10 35K25 35K55 74K10 34G10 47D03 35B60 35B40 PDFBibTeX XMLCite \textit{W. E. Fitzgibbon}, J. Math. Anal. Appl. 79, 536--550 (1981; Zbl 0476.35040) Full Text: DOI
Levendorskij, S. Z. Quasiclassical asymptotics of the eigenvalues of systems of pseudodifferential operators. (English. Russian original) Zbl 0474.35074 Sov. Math., Dokl. 23, 27-31 (1981); translation from Dokl. Akad. Nauk SSSR 256, 32-36 (1981). MSC: 35P20 35S05 47B25 PDFBibTeX XMLCite \textit{S. Z. Levendorskij}, Sov. Math., Dokl. 23, 27--31 (1981; Zbl 0474.35074); translation from Dokl. Akad. Nauk SSSR 256, 32--36 (1981)
Fleckinger, J. Estimate of the number of eigenvalues for an operator of Schrödinger type. (English) Zbl 0474.35072 Proc. R. Soc. Edinb., Sect. A 89, 355-361 (1981). MSC: 35P15 35J10 PDFBibTeX XMLCite \textit{J. Fleckinger}, Proc. R. Soc. Edinb., Sect. A, Math. 89, 355--361 (1981; Zbl 0474.35072) Full Text: DOI
Svendsen, E. C. The effect of submanifolds upon essential self-adjointness and deficiency indices. (English) Zbl 0473.47039 J. Math. Anal. Appl. 80, 551-565 (1981). MSC: 47F05 47B25 81Q10 PDFBibTeX XMLCite \textit{E. C. Svendsen}, J. Math. Anal. Appl. 80, 551--565 (1981; Zbl 0473.47039) Full Text: DOI
Junek, Heinz; Müller, Jürgen Topologische Ideale unbeschraenkter Operatoren im Hilbertraum. (German) Zbl 0473.47034 Wiss. Z. Pädagog. Hoch-sch. Karl Liebknecht, Potsdam 25, 101-110 (1981). MSC: 47L60 47L10 PDFBibTeX XMLCite \textit{H. Junek} and \textit{J. Müller}, Wiss. Z. Pädagog. Hochsch. Karl Liebknecht, Potsdam 25, 101--110 (1981; Zbl 0473.47034)
Klein, Abel; Landau, Lawrence J. Construction of a unique self-adjoint generator for a symmetric local semigroup. (English) Zbl 0473.47023 J. Funct. Anal. 44, 121-137 (1981). MSC: 47D03 47L90 47B25 35J10 PDFBibTeX XMLCite \textit{A. Klein} and \textit{L. J. Landau}, J. Funct. Anal. 44, 121--137 (1981; Zbl 0473.47023) Full Text: DOI
Shakhmurov, V. B. The Fredholm property of general boundary value problems for partial differential operator equations. (Russian) Zbl 0473.35072 Izv. Akad. Nauk Az. SSR, Ser. Fiz.- Tekh. Mat. Nauk 1981, No. 2, 32-36 (1981). MSC: 35R15 47B38 35B45 35R20 PDFBibTeX XMLCite \textit{V. B. Shakhmurov}, Izv. Akad. Nauk Az. SSR, Ser. Fiz.-Tekh. Mat. Nauk 1981, No. 2, 32--36 (1981; Zbl 0473.35072)
Frolov, N. N. Self-adjointness of the Schrödinger operator with an infinite number of variables. (English) Zbl 0473.35034 Sib. Math. J. 22, 147-152 (1981). MSC: 35J10 47B25 81Q10 PDFBibTeX XMLCite \textit{N. N. Frolov}, Sib. Math. J. 22, 147--152 (1981; Zbl 0473.35034) Full Text: DOI
Asakura, Fumioki A remark on the regularity of the solution of the Dirichlet problem in a semi-infinite domain in \(R^ p\). (English) Zbl 0473.35018 J. Math. Kyoto Univ. 21, 593-598 (1981). MSC: 35B65 35J05 46E35 PDFBibTeX XMLCite \textit{F. Asakura}, J. Math. Kyoto Univ. 21, 593--598 (1981; Zbl 0473.35018) Full Text: DOI
Diestel, Joseph An introduction to 2-summing operators. Measure theory in action. (English) Zbl 0472.47010 Measure theory and its applications, Proc. 1980 Conf., DeKalb/Ill., 1-49 (1981). MSC: 47B10 46B20 47B25 46H15 28A20 PDFBibTeX XML
van Eijndhoven, S. J. L. A theory of generalized functions based on one parameter groups of unbounded self-adjoint operators. (English) Zbl 0472.46026 TH-Rep., Eindhoven 81-WSK-03, 92 p. (1981). MSC: 46F05 46F10 47D03 47B25 PDFBibTeX XML
Mazumdar, Tapas On the operator equation AX-XB=Q with possibly unbounded A,B,Q. (English) Zbl 0471.47011 C. R. Math. Acad. Sci., Soc. R. Can. 3, 307-312 (1981). MSC: 47A62 47A70 47A30 PDFBibTeX XMLCite \textit{T. Mazumdar}, C. R. Math. Acad. Sci., Soc. R. Can. 3, 307--312 (1981; Zbl 0471.47011)
Pfeifer, Peter Adjoints of nondensely defined Hilbert space operators. (English) Zbl 0469.47001 J. Math. Phys. 22, 1619-1622 (1981). MSC: 47A05 47B25 PDFBibTeX XMLCite \textit{P. Pfeifer}, J. Math. Phys. 22, 1619--1622 (1981; Zbl 0469.47001) Full Text: DOI
Noussair, Ezzat S. On semilinear elliptic boundary value problems in unbounded domains. (English) Zbl 0469.35050 J. Differ. Equations 41, 334-348 (1981). MSC: 35J60 35J25 35B05 PDFBibTeX XMLCite \textit{E. S. Noussair}, J. Differ. Equations 41, 334--348 (1981; Zbl 0469.35050) Full Text: DOI
Arai, Asao Self-adjointness and spectrum of Hamiltonians in nonrelativistic quantum electrodynamics. (English) Zbl 0468.47030 J. Math. Phys. 22, 534-537 (1981). MSC: 47F05 47B25 81Q10 81T99 47A10 PDFBibTeX XMLCite \textit{A. Arai}, J. Math. Phys. 22, 534--537 (1981; Zbl 0468.47030) Full Text: DOI
Leinfelder, Herbert; Simader, Christian G. Schrödinger operators with singular magnetic vector potentials. (English) Zbl 0468.35038 Math. Z. 176, 1-19 (1981). MSC: 35J10 47B25 35A25 35B45 35B05 PDFBibTeX XMLCite \textit{H. Leinfelder} and \textit{C. G. Simader}, Math. Z. 176, 1--19 (1981; Zbl 0468.35038) Full Text: DOI EuDML
Sobolevskij, P. E.; Khoang Van Laj Difference schemes of optimal type for the approximate solution of parabolic equations. (English. Russian original) Zbl 0467.65037 Ukr. Math. J. 32, 408-413 (1981); translation from Ukr. Mat. Zh. 32, 623-629 (1980). MSC: 65M12 65M06 35G10 35K25 34G20 PDFBibTeX XMLCite \textit{P. E. Sobolevskij} and \textit{Khoang Van Laj}, Ukr. Math. J. 32, 408--413 (1981; Zbl 0467.65037); translation from Ukr. Mat. Zh. 32, 623--629 (1980) Full Text: DOI
Miloslavskij, A. I. Spectral properties of a class of quadratic operator pencils. (English) Zbl 0467.47012 Funct. Anal. Appl. 15, 142-144 (1981). MSC: 47A55 34G10 47B25 PDFBibTeX XMLCite \textit{A. I. Miloslavskij}, Funct. Anal. Appl. 15, 142--144 (1981; Zbl 0467.47012) Full Text: DOI
Achieser, N. I.; Glasmann, I. M. Theorie der linearen Operatoren im Hilbert-Raum. 8., erw. Aufl. Hrsg. von H. Baumgärtel. Übers. aus dem Russischen. Lizenzausg. (German) Zbl 0467.47002 Thun, Frankfurt am Main: Verlag Harri Deutsch. 496 S. SFr./DM 59.80 (1981). MSC: 47-02 47C05 47B06 47B10 47B15 47B25 47E05 47Gxx PDFBibTeX XML
Akhiezer, N. I.; Glazman, I. M. Theory of linear operators in Hilbert space. Vol. I, II. Transl. from the 3rd Russian ed. by E. R. Dawson, ed. by W. N. Everitt. (English) Zbl 0467.47001 Monographs and Studies in Mathematics, 9, 10. Publ. in association with Scottish Academic Press, Edinburgh. Boston - London -Melbourne: Pitman Advanced Publishing Program. XXXII, 552 p. £38.50 (Vol. 1); £29.50 (Vol. 2) (1981). MSC: 47-02 46C05 47B06 47B10 47B15 47B25 47E05 47Gxx PDFBibTeX XML
Read, Thomas T. Differential operators with discrete spectrum. (English) Zbl 0467.34018 Ordinary and partial differential equations, Proc. 6th Conf. Dundee 1980, Lect. Notes Math. 846, 299-305 (1981). MSC: 34L99 47A10 47B25 47E05 PDFBibTeX XML
Fleckinger Pelle, Jacqueline Répartition des valeurs propres d’opérateurs de type Schrödinger. (French) Zbl 0465.35067 C. R. Acad. Sci., Paris, Sér. I 292, 359-361 (1981). MSC: 35P20 35J10 PDFBibTeX XMLCite \textit{J. Fleckinger Pelle}, C. R. Acad. Sci., Paris, Sér. I 292, 359--361 (1981; Zbl 0465.35067)
Ciavaldini, Jean-François; Pogu, Marc; Tournemine, Georges Étude de problèmes monotones poses dans des ouverts non bornes, estimation de l’erreur de troncature. (French) Zbl 0465.35015 C. R. Acad. Sci., Paris, Sér. I 292, 397-400 (1981). MSC: 35F30 47H05 35A35 76N10 PDFBibTeX XMLCite \textit{J.-F. Ciavaldini} et al., C. R. Acad. Sci., Paris, Sér. I 292, 397--400 (1981; Zbl 0465.35015)
Kovalenko, V. F.; Perelmuter, M. A.; Semenov, Ya. A. Schrödinger operators with \(L^{l/2}_ w(R^ l)\)-potentials. (English) Zbl 0463.47027 J. Math. Phys. 22, 1033-1044 (1981). MSC: 47F05 81Q10 47B25 26D15 47D03 PDFBibTeX XMLCite \textit{V. F. Kovalenko} et al., J. Math. Phys. 22, 1033--1044 (1981; Zbl 0463.47027) Full Text: DOI
Arlinskij, Yu. M.; Derkach, V. A.; Tsekanovskij, Eh. R. On the unitary equivalent quasi-Hermitian extensions of Hermitian operators. (Russian) Zbl 0463.47021 Mat. Fiz. 29, 72-77 (1981). MSC: 47B25 47A20 PDFBibTeX XMLCite \textit{Yu. M. Arlinskij} et al., Mat. Fiz. 29, 72--77 (1981; Zbl 0463.47021)
Miloslavskij, A. I. Spectral properties of a certain class of square operator bundles. (Russian) Zbl 0463.47015 Funkts. Anal. Prilozh. 15, No. 2, 81-82 (1981). MSC: 47A55 34G10 47B25 PDFBibTeX XMLCite \textit{A. I. Miloslavskij}, Funkts. Anal. Prilozh. 15, No. 2, 81--82 (1981; Zbl 0463.47015)
Birman, M. Sh.; Solomyak, M. Z. Asymptotics of the spectrum of variational problems on solutions of elliptic equations in unbounded domains. (English. Russian original) Zbl 0463.35061 Funct. Anal. Appl. 14, 267-274 (1981); translation from Funkts. Anal. Prilozh. 14, No. 4, 27-35 (1980). MSC: 35P20 35R20 47F05 35J20 PDFBibTeX XMLCite \textit{M. Sh. Birman} and \textit{M. Z. Solomyak}, Funct. Anal. Appl. 14, 267--274 (1981; Zbl 0463.35061); translation from Funkts. Anal. Prilozh. 14, No. 4, 27--35 (1980) Full Text: DOI
Thirring, Walter A course in mathematical physics. 3: Quantum mechanics of atoms and molecules. Transl. by Evans M. Harrell. (English) Zbl 0462.46046 New York: Wien: Springer-Verlag. VIII, 300 p. ÖS 465.00; DM 65.00; $ 27.70 (1981). MSC: 46L60 47A55 47A40 81-02 46-02 46N99 46L05 81P05 81P10 81Q15 47L90 PDFBibTeX XML
Frolov, N. N. On the self-adjointness of a Schrödinger operator with an infinite number of variables. (Russian) Zbl 0462.35020 Sib. Mat. Zh. 22, No. 1, 198-204 (1981). MSC: 35J10 47B25 81Q10 PDFBibTeX XMLCite \textit{N. N. Frolov}, Sib. Mat. Zh. 22, No. 1, 198--204 (1981; Zbl 0462.35020) Full Text: EuDML
Kiffe, T. An abstract linear Volterra equation with a nonconvolution kernel. (English) Zbl 0461.45012 Proc. Am. Math. Soc. 82, 51-57 (1981). MSC: 45N05 45D05 PDFBibTeX XMLCite \textit{T. Kiffe}, Proc. Am. Math. Soc. 82, 51--57 (1981; Zbl 0461.45012) Full Text: DOI
Jørgensen, Palle E. T. A uniqueness theorem for the Heisenberg-Weyl commutation relations with non-selfadjoint position operator. (English) Zbl 0459.47017 Am. J. Math. 103, 273-287 (1981). MSC: 47B25 46E35 47D03 47B47 46L45 46L60 47A15 47A20 81Q10 PDFBibTeX XMLCite \textit{P. E. T. Jørgensen}, Am. J. Math. 103, 273--287 (1981; Zbl 0459.47017) Full Text: DOI
Istratescu, Vasile I. Introduction to linear operator theory. (English) Zbl 0457.47001 Pure and Applied Mathematics, 65. New York, Basel: Marcel Dekker, Inc. XI, 579 p. SFr. 88.00 (1981). MSC: 47A05 47-02 47A12 47B20 46H05 47B25 47D03 47A35 PDFBibTeX XML
Bradley, John S.; Hinton, Don B.; Kauffman, Robert M. On the minimization of singular quadratic functionals. (English) Zbl 0456.49019 Proc. R. Soc. Edinb., Sect. A 87, 193-208 (1981). MSC: 49K99 49J99 47B25 PDFBibTeX XMLCite \textit{J. S. Bradley} et al., Proc. R. Soc. Edinb., Sect. A, Math. 87, 193--208 (1981; Zbl 0456.49019) Full Text: DOI
Schechter, Martin Operator methods in quantum mechanics. (English) Zbl 0456.47012 New York, Oxford: North Holland. XX, 324 p. $ 32.50 (US & Canada); $ 44.00; Dfl. 90.00 (1981). MSC: 47A40 47-02 47B25 47B10 47A55 47L30 47E05 47F05 81-02 81Q10 81U05 35J10 35P25 35P10 PDFBibTeX XML
Shubin, M. A. On the spectrum and its distribution function for a transversally elliptic operator. (Russian) Zbl 0455.35095 Funkts. Anal. Prilozh. 15, No. 1, 90-91 (1981). MSC: 35P20 35J99 47B25 PDFBibTeX XMLCite \textit{M. A. Shubin}, Funkts. Anal. Prilozh. 15, No. 1, 90--91 (1981; Zbl 0455.35095)
Goldstein, Jerome A.; Sandefur, James T. jun. Equipartition of energy for higher-order hyperbolic equations. (English) Zbl 0455.35084 Proc. Natl. Acad. Sci. USA 78, 698 (1981). MSC: 35L55 35B40 47B25 47D03 PDFBibTeX XMLCite \textit{J. A. Goldstein} and \textit{J. T. Sandefur jun.}, Proc. Natl. Acad. Sci. USA 78, 698 (1981; Zbl 0455.35084) Full Text: DOI
Hofer, Helmut A multiplicity result for a class of nonlinear problems with application to a nonlinear wave equation. (English) Zbl 0451.35043 Nonlinear Anal., Theory Methods Appl. 5, 1-11 (1981). MSC: 35L70 47J05 35R20 47A53 47A10 PDFBibTeX XMLCite \textit{H. Hofer}, Nonlinear Anal., Theory Methods Appl. 5, 1--11 (1981; Zbl 0451.35043) Full Text: DOI
Goldstein, C. I. The finite element method with non-uniform mesh sizes applied to the exterior Helmholtz problem. (English) Zbl 0445.65102 Numer. Math. 38, 61-82 (1981). MSC: 65N30 35J05 78A50 65N15 PDFBibTeX XMLCite \textit{C. I. Goldstein}, Numer. Math. 38, 61--82 (1981; Zbl 0445.65102) Full Text: DOI EuDML
Schmüdgen, Konrad Perturbations of selfadjoint operators with point spectra by restrictions and selfadjoint extensions. (English) Zbl 0443.47024 Math. Ann. 256, 233-248 (1981). MSC: 47B25 47A10 47A55 47A15 PDFBibTeX XMLCite \textit{K. Schmüdgen}, Math. Ann. 256, 233--248 (1981; Zbl 0443.47024) Full Text: DOI EuDML
Colgen, Rainer Invariance of essential spectra. (English) Zbl 0439.47007 Math. Z. 176, 489-493 (1981). MSC: 47A55 47A10 35J10 47B25 PDFBibTeX XMLCite \textit{R. Colgen}, Math. Z. 176, 489--493 (1981; Zbl 0439.47007) Full Text: DOI EuDML
Landgren, J. J.; Rejto, P. A. On a theorem of Jörgens and Chernoff concerning essential self- adjointness of Dirac operators. (English) Zbl 0437.47034 J. Reine Angew. Math. 322, 1-14 (1981). MSC: 47F05 81Q10 47B25 PDFBibTeX XMLCite \textit{J. J. Landgren} and \textit{P. A. Rejto}, J. Reine Angew. Math. 322, 1--14 (1981; Zbl 0437.47034) Full Text: DOI Crelle EuDML
Nagy, B. Local spectral theory. (English) Zbl 0425.47002 Acta Math. Acad. Sci. Hung. 37, 433-443 (1981). MSC: 47A10 47B25 47A15 PDFBibTeX XMLCite \textit{B. Nagy}, Acta Math. Acad. Sci. Hung. 37, 433--443 (1981; Zbl 0425.47002) Full Text: DOI
Herman, Ivan A Hamiltonian defined in \(L^2(S0(3),\lambda)\). (English) Zbl 0424.47032 Acta Math. Acad. Sci. Hung. 37, 269-275 (1981). MSC: 47F05 47B25 43A80 81Q10 PDFBibTeX XMLCite \textit{I. Herman}, Acta Math. Acad. Sci. Hung. 37, 269--275 (1981; Zbl 0424.47032) Full Text: DOI
Povoas, M. On some singular hyperbolic evolution equations. (English) Zbl 0424.35056 J. Math. Pures Appl., IX. Sér. 60, 133-192 (1981). MSC: 35L40 35Q99 35R15 34G10 PDFBibTeX XMLCite \textit{M. Povoas}, J. Math. Pures Appl. (9) 60, 133--192 (1981; Zbl 0424.35056)