Class information for:
Level 1: POINT INTERACTIONS//QUANTUM GRAPHS//SELF ADJOINT EXTENSION

Basic class information
Bar chart of Publication_year

Last years might be incomplete

Hierarchy of classes
The table includes all classes above and classes immediately below the current class.


Cluster id Level Cluster label #P
14 4 MATHEMATICS//MATHEMATICS, APPLIED//MATH 912822
468 3       PHYSICS, MATHEMATICAL//MATHEMATICS//JOURNAL OF MATHEMATICAL PHYSICS 25817
1864 2             STURM LIOUVILLE PROBLEM//STURM LIOUVILLE OPERATOR//INVERSE SPECTRAL PROBLEM 6417
7700 1                   POINT INTERACTIONS//QUANTUM GRAPHS//SELF ADJOINT EXTENSION 1362

Terms with highest relevance score


rank Category termType chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 POINT INTERACTIONS authKW 687498 4% 57% 52
2 QUANTUM GRAPHS authKW 671818 4% 52% 56
3 SELF ADJOINT EXTENSION authKW 592418 5% 41% 63
4 DOPPLER address 394788 3% 37% 46
5 DOPPLER MATH PHYS PL MATH address 382126 2% 52% 32
6 WEYL FUNCTION authKW 187384 2% 30% 27
7 BOUNDARY TRIPLE authKW 177983 1% 77% 10
8 KREINS FORMULA authKW 177983 1% 77% 10
9 BOUNDARY TRIPLET authKW 175356 1% 63% 12
10 METRIC GRAPHS authKW 139190 1% 32% 19

Web of Science journal categories


chi_square_rank Category chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 Physics, Mathematical 23496 37% 0% 500
2 Mathematics 11378 40% 0% 544
3 Physics, Multidisciplinary 3874 25% 0% 344
4 Mathematics, Applied 3595 21% 0% 289
5 Physics, Particles & Fields 45 3% 0% 39
6 Education, Scientific Disciplines 31 1% 0% 13
7 Multidisciplinary Sciences 2 1% 0% 7
8 Mathematics, Interdisciplinary Applications 1 1% 0% 9
9 History & Philosophy of Science 0 0% 0% 2
10 Mechanics -0 1% 0% 15

Address terms


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 DOPPLER 394788 3% 37% 46
2 DOPPLER MATH PHYS PL MATH 382126 2% 52% 32
3 LMPA JOSEPH LIOUVILLE ULCO 96408 0% 83% 5
4 DISAT SEZ MATEMAT 92554 0% 100% 4
5 PHYS MATH MATH PL 92554 0% 100% 4
6 FR CNRS MATH 2956 82634 0% 71% 5
7 BIS GRP 69415 0% 100% 3
8 IZKSBIBOS 69415 0% 100% 3
9 WIMCS 61700 0% 67% 4
10 CHAIR PROFESSORSHIP 46277 0% 100% 2

Journals


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL 31202 8% 1% 110
2 INTEGRAL EQUATIONS AND OPERATOR THEORY 14593 3% 2% 38
3 RUSSIAN JOURNAL OF MATHEMATICAL PHYSICS 12403 2% 3% 21
4 REPORTS ON MATHEMATICAL PHYSICS 11481 2% 2% 23
5 JOURNAL OF PHYSICS A-MATHEMATICAL AND GENERAL 10249 6% 1% 84
6 JOURNAL OF MATHEMATICAL PHYSICS 9987 6% 1% 84
7 ANNALES HENRI POINCARE 8701 1% 2% 20
8 OPERATORS AND MATRICES 7923 1% 3% 13
9 WAVES IN RANDOM MEDIA 6996 1% 3% 11
10 JOURNAL OF SPECTRAL THEORY 6617 1% 4% 7

Author Key Words


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass LCSH search Wikipedia search
1 POINT INTERACTIONS 687498 4% 57% 52 Search POINT+INTERACTIONS Search POINT+INTERACTIONS
2 QUANTUM GRAPHS 671818 4% 52% 56 Search QUANTUM+GRAPHS Search QUANTUM+GRAPHS
3 SELF ADJOINT EXTENSION 592418 5% 41% 63 Search SELF+ADJOINT+EXTENSION Search SELF+ADJOINT+EXTENSION
4 WEYL FUNCTION 187384 2% 30% 27 Search WEYL+FUNCTION Search WEYL+FUNCTION
5 BOUNDARY TRIPLE 177983 1% 77% 10 Search BOUNDARY+TRIPLE Search BOUNDARY+TRIPLE
6 KREINS FORMULA 177983 1% 77% 10 Search KREINS+FORMULA Search KREINS+FORMULA
7 BOUNDARY TRIPLET 175356 1% 63% 12 Search BOUNDARY+TRIPLET Search BOUNDARY+TRIPLET
8 METRIC GRAPHS 139190 1% 32% 19 Search METRIC+GRAPHS Search METRIC+GRAPHS
9 DELTA INTERACTION 133866 1% 64% 9 Search DELTA+INTERACTION Search DELTA+INTERACTION
10 INVERSE SPECTRAL PROBLEM 122448 2% 18% 30 Search INVERSE+SPECTRAL+PROBLEM Search INVERSE+SPECTRAL+PROBLEM

Core articles
The table includes core articles in the class. The following variables is taken into account for the relevance score of an article in a cluster c:
(1) Number of references referring to publications in the class.
(2) Share of total number of active references referring to publications in the class.
(3) Age of the article. New articles get higher score than old articles.
(4) Citation rate, normalized to year.

Classes with closest relation at Level 1


rank cluster_id2 link
1 32960 OSCILLATION OF EIGENFUNCTIONS//SELF SIMILAR FUNCTION//STRATIFIED SET
2 27013 WORLD PAN AMER ABORAT SCI TECHNOL//PAN AMER ABORAT SCI TECHNOL//FIS TEOR FISIFLP
3 28642 CONFINEMENT LIMIT//DEFICIENCY INDEX OF THE OPERATORS//DIRAC KRONIG PENNEY MODEL
4 5435 INVERSE NODAL PROBLEM//INVERSE SPECTRAL PROBLEM//STURM LIOUVILLE OPERATOR
5 9493 TRAPPED MODES//EFFECTIVE OPERATOR//OPERATOR ERROR ESTIMATES
6 17753 KREIN SPACE//DEFINITIZABLE OPERATOR//J SELF ADJOINT OPERATOR
7 23270 WENTZELL BOUNDARY CONDITIONS//DYNAMICAL BOUNDARY CONDITIONS//EXTERIOR REGIONS
8 27411 BETHE SOMMERFELD CONJECTURE//MAGNITOGORSK STATE PEDAG//REGULARIZED TRACE
9 13292 CONJOINED BASIS//LIMIT POINT CASE//DISCRETE SYMPLECTIC SYSTEM
10 7341 RANDOM SCHRODINGER OPERATORS//INTEGRATED DENSITY OF STATES//WEGNER ESTIMATE

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