Class information for:
Level 1: TWO PARAMETER EIGENVALUE PROBLEM//MULTIPARAMETER EIGENVALUE PROBLEM//QUADRATIC TWO PARAMETER EIGENVALUE PROBLEM

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
25176 1                   TWO PARAMETER EIGENVALUE PROBLEM//MULTIPARAMETER EIGENVALUE PROBLEM//QUADRATIC TWO PARAMETER EIGENVALUE PROBLEM 312

Terms with highest relevance score


rank Category termType chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 TWO PARAMETER EIGENVALUE PROBLEM authKW 673426 3% 67% 10
2 MULTIPARAMETER EIGENVALUE PROBLEM authKW 511380 3% 56% 9
3 QUADRATIC TWO PARAMETER EIGENVALUE PROBLEM authKW 303045 1% 100% 3
4 SINGULAR TWO PARAMETER EIGENVALUE PROBLEM authKW 303045 1% 100% 3
5 TWO PARAMETER authKW 303033 3% 33% 9
6 NONLINEAR STURM LIOUVILLE authKW 227282 1% 75% 3
7 ASYMPTOTIC LENGTH OF BIFURCATION CURVES authKW 202030 1% 100% 2
8 BIFURCATING FAMILY authKW 202030 1% 100% 2
9 DAMPED SIMPLE PENDULUM authKW 202030 1% 100% 2
10 IMFM TCS address 202030 1% 100% 2

Web of Science journal categories


chi_square_rank Category chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 Mathematics 10184 77% 0% 241
2 Mathematics, Applied 7301 60% 0% 188
3 Physics, Mathematical 40 4% 0% 12
4 Multidisciplinary Sciences 5 1% 0% 3
5 Mathematical & Computational Biology 1 1% 0% 2
6 Mechanics 1 2% 0% 5
7 Mathematics, Interdisciplinary Applications 0 1% 0% 2
8 Engineering, General 0 1% 0% 2
9 Physics, Multidisciplinary -0 2% 0% 5
10 Computer Science, Software Engineering -0 0% 0% 1

Address terms


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 IMFM TCS 202030 1% 100% 2
2 BERUFSAKAD THURINGEN 101015 0% 100% 1
3 STATE UNIV LVOV POLYTECHN 101015 0% 100% 1
4 MIZUKO KU 50506 0% 50% 1
5 PL PHYS COURSE 44892 1% 22% 2
6 MATH NWF 1 33670 0% 33% 1
7 CURT RI DYNAM ACOUST MEASUREMENTS 25252 0% 25% 1
8 EXCELLENCE SYST SCI 25252 0% 25% 1
9 IMFM 12073 2% 2% 5
10 INTEGRATED ARTS SCI 11179 6% 1% 19

Journals


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 PROCEEDINGS OF THE ROYAL SOCIETY OF EDINBURGH SECTION A-MATHEMATICS 34694 10% 1% 30
2 PROCEEDINGS OF THE EDINBURGH MATHEMATICAL SOCIETY 23145 6% 1% 19
3 JOURNAL OF DIFFERENTIAL EQUATIONS 4894 6% 0% 19
4 JOURNAL OF MATHEMATICAL ANALYSIS AND APPLICATIONS 3663 9% 0% 28
5 IZVESTIYA AKADEMII NAUK AZERBAIDZHANSKOI SSR SERIYA FIZIKO-TEKHNICHESKIKH I MATEMATICHESKIKH NAUK 2194 0% 2% 1
6 NONLINEAR ANALYSIS-THEORY METHODS & APPLICATIONS 2101 5% 0% 16
7 ELECTRONIC JOURNAL OF DIFFERENTIAL EQUATIONS 1992 3% 0% 8
8 LINEAR ALGEBRA AND ITS APPLICATIONS 1435 4% 0% 13
9 SIAM JOURNAL ON MATRIX ANALYSIS AND APPLICATIONS 1159 2% 0% 5
10 DIFFERENTIAL AND INTEGRAL EQUATIONS 1089 1% 0% 3

Author Key Words


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass LCSH search Wikipedia search
1 TWO PARAMETER EIGENVALUE PROBLEM 673426 3% 67% 10 Search TWO+PARAMETER+EIGENVALUE+PROBLEM Search TWO+PARAMETER+EIGENVALUE+PROBLEM
2 MULTIPARAMETER EIGENVALUE PROBLEM 511380 3% 56% 9 Search MULTIPARAMETER+EIGENVALUE+PROBLEM Search MULTIPARAMETER+EIGENVALUE+PROBLEM
3 QUADRATIC TWO PARAMETER EIGENVALUE PROBLEM 303045 1% 100% 3 Search QUADRATIC+TWO+PARAMETER+EIGENVALUE+PROBLEM Search QUADRATIC+TWO+PARAMETER+EIGENVALUE+PROBLEM
4 SINGULAR TWO PARAMETER EIGENVALUE PROBLEM 303045 1% 100% 3 Search SINGULAR+TWO+PARAMETER+EIGENVALUE+PROBLEM Search SINGULAR+TWO+PARAMETER+EIGENVALUE+PROBLEM
5 TWO PARAMETER 303033 3% 33% 9 Search TWO+PARAMETER Search TWO+PARAMETER
6 NONLINEAR STURM LIOUVILLE 227282 1% 75% 3 Search NONLINEAR+STURM+LIOUVILLE Search NONLINEAR+STURM+LIOUVILLE
7 ASYMPTOTIC LENGTH OF BIFURCATION CURVES 202030 1% 100% 2 Search ASYMPTOTIC+LENGTH+OF+BIFURCATION+CURVES Search ASYMPTOTIC+LENGTH+OF+BIFURCATION+CURVES
8 BIFURCATING FAMILY 202030 1% 100% 2 Search BIFURCATING+FAMILY Search BIFURCATING+FAMILY
9 DAMPED SIMPLE PENDULUM 202030 1% 100% 2 Search DAMPED+SIMPLE+PENDULUM Search DAMPED+SIMPLE+PENDULUM
10 INVERSE BIFURCATION PROBLEM 202030 1% 100% 2 Search INVERSE+BIFURCATION+PROBLEM Search INVERSE+BIFURCATION+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 22641 EXACT MULTIPLICITY//S SHAPED BIFURCATION CURVE//TIME MAP
2 17753 KREIN SPACE//DEFINITIZABLE OPERATOR//J SELF ADJOINT OPERATOR
3 15817 MINIMAL DISPLACEMENT//INDEX BUNDLE//DEGREE THEORY
4 27651 P REGULARITY//ABNORMAL POINT//P FACTOR OPERATOR
5 25965 SPECTRAL PARAMETER POWER SERIES//PSEUDOANALYTIC FUNCTION//CP METHODS
6 12658 MATRIX POLYNOMIAL//POLYNOMIAL EIGENVALUE PROBLEM//PSEUDOSPECTRUM
7 12718 JACOBI DAVIDSON//JACOBI DAVIDSON METHOD//RITZ VALUES
8 21718 NUMERICAL ALGEBRAIC GEOMETRY//POLYNOMIAL SYSTEMS//POLYHEDRAL HOMOTOPY
9 28536 PROJET ANAL FONCTIONNELLE//LIZORKIN TRIEBEL SPACES//HOMOGENEOUS BESOV SPACES
10 1997 QUASILINEAR SCHRODINGER EQUATION//VARIATIONAL METHODS//STRONGLY INDEFINITE FUNCTIONALS

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